{
  "model": "Qwen3.8-27B-FP8",
  "runtime": "0.26.0b2.dev1+g3b102b576",
  "runtime_image_digests": [
    "sha256:869a86d790c0f6bdd62521ce1d2b521e5b5625fe41953190698483384794fa4b"
  ],
  "aibrix": "v0.7.0",
  "replicas": 2,
  "gpu_per_replica": "1xL20",
  "measured_phases": 24,
  "planned_phases": 24,
  "complete": true,
  "phases": [
    {
      "phase": "r1-cold-uniform-random",
      "scenario": "cold-uniform",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-cold-uniform-random",
        "route": "random",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789009620.0155287,
      "finished_at": 1789009686.5851285,
      "elapsed": 66.56959986686707,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 40,
      "output_tokens_per_second": 184.5887616055203,
      "ttft": {
        "p50": 2.84079647064209,
        "p95": 7.688981374725699,
        "p99": 8.648860582709311
      },
      "tpot": {
        "p50": 0.05950149503631855,
        "p95": 0.09079976552936035,
        "p99": 0.10711417501190985
      },
      "e2e": {
        "p50": 11.836791194975376,
        "p95": 15.685619719326496,
        "p99": 16.61995513103902
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 7.704025075957178
        },
        "1": {
          "requests": 12,
          "ttft_p95": 4.309392182901502
        },
        "2": {
          "requests": 12,
          "ttft_p95": 7.671846346184611
        },
        "3": {
          "requests": 12,
          "ttft_p95": 6.142493321746587
        },
        "4": {
          "requests": 12,
          "ttft_p95": 7.536015455424784
        },
        "5": {
          "requests": 12,
          "ttft_p95": 7.118875425308941
        },
        "6": {
          "requests": 12,
          "ttft_p95": 7.486579071730375
        },
        "7": {
          "requests": 12,
          "ttft_p95": 7.69327300786972
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 45,
          "engine_completed": 45.0,
          "cache_queries_tokens": 227099.0,
          "cache_hit_tokens": 174048.0,
          "cache_hit_ratio": 0.7663970338927076,
          "waiting_peak": 3.0,
          "running_peak": 8.0,
          "family_counts": {
            "4": 6,
            "3": 7,
            "1": 8,
            "7": 4,
            "2": 2,
            "6": 8,
            "0": 4,
            "5": 6
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 13
        },
        "L20-B": {
          "requests": 51,
          "engine_completed": 51.0,
          "cache_queries_tokens": 257413.0,
          "cache_hit_tokens": 202272.0,
          "cache_hit_ratio": 0.785787819573992,
          "waiting_peak": 8.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 4,
            "2": 10,
            "3": 5,
            "0": 8,
            "5": 6,
            "6": 4,
            "7": 8,
            "4": 6
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 15
        }
      },
      "cache_hit_ratio": 0.7766990291262136,
      "input_tokens_range": [
        5041,
        5050
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": null,
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-cold-uniform-least-request",
      "scenario": "cold-uniform",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-cold-uniform-least-request",
        "route": "least-request",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789009695.342697,
      "finished_at": 1789009761.859205,
      "elapsed": 66.51650810241699,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 43,
      "output_tokens_per_second": 184.73609560321304,
      "ttft": {
        "p50": 2.3767913579940796,
        "p95": 7.673360759392381,
        "p99": 8.532007412984967
      },
      "tpot": {
        "p50": 0.05932178368835937,
        "p95": 0.10614236109838711,
        "p99": 0.11756115674561872
      },
      "e2e": {
        "p50": 11.23173362761736,
        "p95": 16.076369874179363,
        "p99": 16.83766434788704
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 6.723397232219576
        },
        "1": {
          "requests": 12,
          "ttft_p95": 5.346578779071569
        },
        "2": {
          "requests": 12,
          "ttft_p95": 5.377261469513177
        },
        "3": {
          "requests": 12,
          "ttft_p95": 7.185568646341561
        },
        "4": {
          "requests": 12,
          "ttft_p95": 7.918130419030785
        },
        "5": {
          "requests": 12,
          "ttft_p95": 5.807957644388079
        },
        "6": {
          "requests": 12,
          "ttft_p95": 8.443255316093564
        },
        "7": {
          "requests": 12,
          "ttft_p95": 6.8229291886091215
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242287.0,
          "cache_hit_tokens": 188160.0,
          "cache_hit_ratio": 0.7765996524782592,
          "waiting_peak": 4.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 6,
            "3": 6,
            "2": 7,
            "0": 6,
            "5": 5,
            "7": 7,
            "6": 7,
            "4": 4
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 13
        },
        "L20-B": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242297.0,
          "cache_hit_tokens": 188160.0,
          "cache_hit_ratio": 0.7765676009195326,
          "waiting_peak": 5.0,
          "running_peak": 8.0,
          "family_counts": {
            "4": 8,
            "2": 5,
            "1": 6,
            "7": 5,
            "3": 6,
            "6": 5,
            "5": 7,
            "0": 6
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 12
        }
      },
      "cache_hit_ratio": 0.7765836263681839,
      "input_tokens_range": [
        5039,
        5055
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": null,
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-cold-uniform-prefix-cache",
      "scenario": "cold-uniform",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-cold-uniform-prefix-cache",
        "route": "prefix-cache",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789009767.7818213,
      "finished_at": 1789009839.3063693,
      "elapsed": 71.52454805374146,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 59,
      "output_tokens_per_second": 171.80115546856942,
      "ttft": {
        "p50": 1.3441888205707073,
        "p95": 5.574821515008807,
        "p99": 6.829183911159632
      },
      "tpot": {
        "p50": 0.059168266587135365,
        "p95": 0.08135900232852913,
        "p99": 0.08740641987757887
      },
      "e2e": {
        "p50": 9.329894494265318,
        "p95": 13.221317622810602,
        "p99": 14.19703487753868
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 4.3845902092754825
        },
        "1": {
          "requests": 12,
          "ttft_p95": 1.8436638686805962
        },
        "2": {
          "requests": 12,
          "ttft_p95": 5.112113894149661
        },
        "3": {
          "requests": 12,
          "ttft_p95": 1.3951354227960102
        },
        "4": {
          "requests": 12,
          "ttft_p95": 6.334210337325929
        },
        "5": {
          "requests": 12,
          "ttft_p95": 6.623977927118539
        },
        "6": {
          "requests": 12,
          "ttft_p95": 1.622489885985851
        },
        "7": {
          "requests": 12,
          "ttft_p95": 4.6390440978109835
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 36,
          "engine_completed": 36.0,
          "cache_queries_tokens": 181668.0,
          "cache_hit_tokens": 155232.0,
          "cache_hit_ratio": 0.8544818019684259,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 12,
            "3": 12,
            "6": 12
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 9
        },
        "L20-B": {
          "requests": 60,
          "engine_completed": 60.0,
          "cache_queries_tokens": 302868.0,
          "cache_hit_tokens": 258720.0,
          "cache_hit_ratio": 0.8542335274773168,
          "waiting_peak": 6.0,
          "running_peak": 8.0,
          "family_counts": {
            "4": 12,
            "2": 12,
            "7": 12,
            "0": 12,
            "5": 12
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 15
        }
      },
      "cache_hit_ratio": 0.8543266135024022,
      "input_tokens_range": [
        5042,
        5051
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": null,
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-warm-uniform-random",
      "scenario": "warm-uniform",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-warm-uniform-random",
        "route": "random",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789010357.041408,
      "finished_at": 1789010423.9342647,
      "elapsed": 66.89285659790039,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 183.69674468926314,
      "ttft": {
        "p50": 0.29664960876107216,
        "p95": 0.6254031769931316,
        "p99": 0.6967189710587247
      },
      "tpot": {
        "p50": 0.0586303089723343,
        "p95": 0.059756773780650044,
        "p99": 0.05984805442216828
      },
      "e2e": {
        "p50": 7.746236842125654,
        "p95": 8.103366469964385,
        "p99": 8.133074725046754
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 0.27015614733099935
        },
        "1": {
          "requests": 12,
          "ttft_p95": 0.6039912663400173
        },
        "2": {
          "requests": 12,
          "ttft_p95": 0.3272919453680515
        },
        "3": {
          "requests": 12,
          "ttft_p95": 0.6270358871668577
        },
        "4": {
          "requests": 12,
          "ttft_p95": 0.32574551217257974
        },
        "5": {
          "requests": 12,
          "ttft_p95": 0.6459913920611143
        },
        "6": {
          "requests": 12,
          "ttft_p95": 0.9022392574697728
        },
        "7": {
          "requests": 12,
          "ttft_p95": 0.5750722713768481
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 46,
          "engine_completed": 46.0,
          "cache_queries_tokens": 232325.0,
          "cache_hit_tokens": 216384.0,
          "cache_hit_ratio": 0.9313849133756591,
          "waiting_peak": 1.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 6,
            "3": 7,
            "2": 6,
            "0": 8,
            "5": 4,
            "6": 4,
            "4": 5,
            "7": 6
          },
          "kv_usage_peak": 0.27222222222222225,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        },
        "L20-B": {
          "requests": 50,
          "engine_completed": 50.0,
          "cache_queries_tokens": 252535.0,
          "cache_hit_tokens": 235200.0,
          "cache_hit_ratio": 0.9313560496564832,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "4": 7,
            "2": 6,
            "1": 6,
            "3": 5,
            "7": 6,
            "5": 8,
            "6": 8,
            "0": 4
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        }
      },
      "cache_hit_ratio": 0.9313698799653508,
      "input_tokens_range": [
        5042,
        5060
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-A"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-B"
        ],
        "7": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-warm-uniform-least-request",
      "scenario": "warm-uniform",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-warm-uniform-least-request",
        "route": "least-request",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789010470.1247866,
      "finished_at": 1789010536.6280012,
      "elapsed": 66.50321459770203,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.77302299345698,
      "ttft": {
        "p50": 0.28941234573721886,
        "p95": 0.324816033244133,
        "p99": 0.3288592670112848
      },
      "tpot": {
        "p50": 0.05765703845563836,
        "p95": 0.05850857509461445,
        "p99": 0.05873598071240534
      },
      "e2e": {
        "p50": 7.599231049418449,
        "p95": 7.709019938483834,
        "p99": 7.733198273181915
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 0.2733776018023491
        },
        "1": {
          "requests": 12,
          "ttft_p95": 0.267473728209734
        },
        "2": {
          "requests": 12,
          "ttft_p95": 0.320900497213006
        },
        "3": {
          "requests": 12,
          "ttft_p95": 0.31679686568677423
        },
        "4": {
          "requests": 12,
          "ttft_p95": 0.31918064281344416
        },
        "5": {
          "requests": 12,
          "ttft_p95": 0.32949077524244785
        },
        "6": {
          "requests": 12,
          "ttft_p95": 0.3261799342930317
        },
        "7": {
          "requests": 12,
          "ttft_p95": 0.3214779976755381
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 46,
          "engine_completed": 46.0,
          "cache_queries_tokens": 232142.0,
          "cache_hit_tokens": 216384.0,
          "cache_hit_ratio": 0.9321191339783409,
          "waiting_peak": 0.0,
          "running_peak": 7.0,
          "family_counts": {
            "4": 4,
            "1": 6,
            "2": 5,
            "7": 7,
            "3": 6,
            "6": 7,
            "5": 6,
            "0": 5
          },
          "kv_usage_peak": 0.28888888888888886,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 6
        },
        "L20-B": {
          "requests": 50,
          "engine_completed": 50.0,
          "cache_queries_tokens": 252334.0,
          "cache_hit_tokens": 235200.0,
          "cache_hit_ratio": 0.9320979336910603,
          "waiting_peak": 0.0,
          "running_peak": 7.0,
          "family_counts": {
            "1": 6,
            "2": 7,
            "3": 6,
            "0": 7,
            "5": 6,
            "7": 5,
            "4": 8,
            "6": 5
          },
          "kv_usage_peak": 0.27222222222222225,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 6
        }
      },
      "cache_hit_ratio": 0.9321080920417111,
      "input_tokens_range": [
        5042,
        5051
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-warm-uniform-prefix-cache",
      "scenario": "warm-uniform",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-warm-uniform-prefix-cache",
        "route": "prefix-cache",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789010583.381748,
      "finished_at": 1789010649.8396983,
      "elapsed": 66.45795035362244,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.8988711601187,
      "ttft": {
        "p50": 0.2958083339035511,
        "p95": 0.32546211034059525,
        "p99": 1.1382669005542994
      },
      "tpot": {
        "p50": 0.057474752902749955,
        "p95": 0.059258668500138084,
        "p99": 0.05987720315263966
      },
      "e2e": {
        "p50": 7.590223263949156,
        "p95": 7.839155858382583,
        "p99": 8.483500659838318
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 0.2605892296880484
        },
        "1": {
          "requests": 12,
          "ttft_p95": 0.27505026310682296
        },
        "2": {
          "requests": 12,
          "ttft_p95": 0.3204427741467953
        },
        "3": {
          "requests": 12,
          "ttft_p95": 0.40283551067113865
        },
        "4": {
          "requests": 12,
          "ttft_p95": 0.6887706164270634
        },
        "5": {
          "requests": 12,
          "ttft_p95": 0.7846306964755053
        },
        "6": {
          "requests": 12,
          "ttft_p95": 0.32254365719854833
        },
        "7": {
          "requests": 12,
          "ttft_p95": 0.3142969232052565
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242664.0,
          "cache_hit_tokens": 225792.0,
          "cache_hit_ratio": 0.9304717634259717,
          "waiting_peak": 1.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 12,
            "4": 12,
            "7": 12,
            "5": 12
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 9
        },
        "L20-B": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242292.0,
          "cache_hit_tokens": 225792.0,
          "cache_hit_ratio": 0.9319003516418206,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "2": 12,
            "3": 12,
            "0": 12,
            "6": 12
          },
          "kv_usage_peak": 0.22777777777777775,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        }
      },
      "cache_hit_ratio": 0.9311855096132433,
      "input_tokens_range": [
        5044,
        5058
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-B"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot50-random",
      "scenario": "hot50",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot50-random",
        "route": "random",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 0,
          "1": 1,
          "2": 2,
          "3": 6,
          "4": 3,
          "5": 4,
          "6": 5,
          "7": 8
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            1,
            2,
            6,
            7,
            10,
            13,
            14,
            15
          ],
          "L20-A": [
            3,
            4,
            5,
            8,
            9,
            11,
            12
          ]
        }
      },
      "started_at": 1789010716.2091403,
      "finished_at": 1789010784.1055198,
      "elapsed": 67.8963794708252,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 78,
      "output_tokens_per_second": 180.98166788525307,
      "ttft": {
        "p50": 0.3263930305838585,
        "p95": 2.8441086038947105,
        "p99": 3.542448974400757
      },
      "tpot": {
        "p50": 0.059780729010583844,
        "p95": 0.0824226779408577,
        "p99": 0.08321250354739156
      },
      "e2e": {
        "p50": 9.23211344704032,
        "p95": 10.83479761891067,
        "p99": 11.585571687668562
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 2.7631832204759115
        },
        "1": {
          "requests": 7,
          "ttft_p95": 2.280198223143816
        },
        "2": {
          "requests": 7,
          "ttft_p95": 2.820430341362953
        },
        "3": {
          "requests": 7,
          "ttft_p95": 3.712829999625682
        },
        "4": {
          "requests": 7,
          "ttft_p95": 1.375008276849984
        },
        "5": {
          "requests": 7,
          "ttft_p95": 2.229161767661571
        },
        "6": {
          "requests": 7,
          "ttft_p95": 2.982341737300157
        },
        "7": {
          "requests": 6,
          "ttft_p95": 2.4114129450172186
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 52,
          "engine_completed": 52.0,
          "cache_queries_tokens": 262734.0,
          "cache_hit_tokens": 225792.0,
          "cache_hit_ratio": 0.8593939117129873,
          "waiting_peak": 4.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 6,
            "6": 4,
            "0": 23,
            "1": 5,
            "4": 2,
            "7": 3,
            "3": 4,
            "2": 5
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 11
        },
        "L20-B": {
          "requests": 44,
          "engine_completed": 44.0,
          "cache_queries_tokens": 222372.0,
          "cache_hit_tokens": 188160.0,
          "cache_hit_ratio": 0.8461496951054989,
          "waiting_peak": 3.0,
          "running_peak": 8.0,
          "family_counts": {
            "4": 5,
            "0": 25,
            "3": 3,
            "1": 2,
            "7": 3,
            "5": 1,
            "2": 2,
            "6": 3
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 11
        }
      },
      "cache_hit_ratio": 0.853322778939036,
      "input_tokens_range": [
        5041,
        5056
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot50-least-request",
      "scenario": "hot50",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot50-least-request",
        "route": "least-request",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 0,
          "1": 1,
          "2": 3,
          "3": 6,
          "4": 2,
          "5": 4,
          "6": 5,
          "7": 8
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            1,
            3,
            6,
            7,
            11,
            14,
            15
          ],
          "L20-A": [
            2,
            4,
            5,
            8,
            9,
            10,
            12,
            13
          ]
        }
      },
      "started_at": 1789010849.4668534,
      "finished_at": 1789010915.942201,
      "elapsed": 66.4753475189209,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.85048154885482,
      "ttft": {
        "p50": 0.26604415848851204,
        "p95": 1.7666204553097486,
        "p99": 1.8249685376882552
      },
      "tpot": {
        "p50": 0.05826374515891075,
        "p95": 0.07157416424648029,
        "p99": 0.08223198404696982
      },
      "e2e": {
        "p50": 7.688154421746731,
        "p95": 10.673568261787295,
        "p99": 10.79795326925814
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 0.5411157000809903
        },
        "1": {
          "requests": 7,
          "ttft_p95": 1.7368168331682678
        },
        "2": {
          "requests": 7,
          "ttft_p95": 1.319084683060645
        },
        "3": {
          "requests": 7,
          "ttft_p95": 1.3695063203573217
        },
        "4": {
          "requests": 7,
          "ttft_p95": 1.5718817546963686
        },
        "5": {
          "requests": 7,
          "ttft_p95": 1.5276991181075568
        },
        "6": {
          "requests": 7,
          "ttft_p95": 1.360856246203183
        },
        "7": {
          "requests": 6,
          "ttft_p95": 1.4382031429558992
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242377.0,
          "cache_hit_tokens": 206976.0,
          "cache_hit_ratio": 0.8539424120275438,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "6": 4,
            "4": 2,
            "0": 19,
            "1": 5,
            "5": 4,
            "3": 6,
            "7": 4,
            "2": 4
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        },
        "L20-B": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242374.0,
          "cache_hit_tokens": 206976.0,
          "cache_hit_ratio": 0.8539529817554689,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 3,
            "0": 29,
            "3": 1,
            "4": 5,
            "7": 2,
            "6": 3,
            "2": 3,
            "1": 2
          },
          "kv_usage_peak": 0.25555555555555554,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        }
      },
      "cache_hit_ratio": 0.8539476968587997,
      "input_tokens_range": [
        5045,
        5059
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot50-prefix-cache",
      "scenario": "hot50",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot50-prefix-cache",
        "route": "prefix-cache",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 5,
          "1": 6,
          "2": 8,
          "3": 11,
          "4": 0,
          "5": 1,
          "6": 2,
          "7": 3
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            1,
            2,
            3,
            4,
            7,
            9,
            10,
            12,
            14,
            15
          ],
          "L20-B": [
            5,
            6,
            8,
            11,
            13
          ]
        }
      },
      "started_at": 1789010981.8233328,
      "finished_at": 1789011056.296687,
      "elapsed": 74.47335410118103,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 38,
      "output_tokens_per_second": 164.99861122550317,
      "ttft": {
        "p50": 2.4053986743092537,
        "p95": 8.317002961412072,
        "p99": 8.917996305599805
      },
      "tpot": {
        "p50": 0.059404155283462344,
        "p95": 0.05984646601118441,
        "p99": 0.05988894123437367
      },
      "e2e": {
        "p50": 9.973313450813293,
        "p95": 15.858975149691105,
        "p99": 16.222100140899418
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 8.313477974757552
        },
        "1": {
          "requests": 7,
          "ttft_p95": 9.437797755748033
        },
        "2": {
          "requests": 7,
          "ttft_p95": 8.07993974238634
        },
        "3": {
          "requests": 7,
          "ttft_p95": 8.68347138762474
        },
        "4": {
          "requests": 7,
          "ttft_p95": 0.26705296486616137
        },
        "5": {
          "requests": 7,
          "ttft_p95": 0.257073974609375
        },
        "6": {
          "requests": 7,
          "ttft_p95": 0.32351688519120214
        },
        "7": {
          "requests": 6,
          "ttft_p95": 0.32287048175930977
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 27,
          "engine_completed": 27.0,
          "cache_queries_tokens": 136351.0,
          "cache_hit_tokens": 127008.0,
          "cache_hit_ratio": 0.9314783169907078,
          "waiting_peak": 0.0,
          "running_peak": 6.0,
          "family_counts": {
            "5": 7,
            "6": 7,
            "4": 7,
            "7": 6
          },
          "kv_usage_peak": 0.19999999999999996,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 7
        },
        "L20-B": {
          "requests": 69,
          "engine_completed": 69.0,
          "cache_queries_tokens": 347810.0,
          "cache_hit_tokens": 324576.0,
          "cache_hit_ratio": 0.9331991604611714,
          "waiting_peak": 8.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 48,
            "3": 7,
            "1": 7,
            "2": 7
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 16
        }
      },
      "cache_hit_ratio": 0.9327145309101724,
      "input_tokens_range": [
        5039,
        5051
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot90-random",
      "scenario": "hot90",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot90-random",
        "route": "random",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "family_map": {
          "0": 0,
          "1": 3,
          "2": 6,
          "3": 7,
          "4": 1,
          "5": 2,
          "6": 4,
          "7": 5
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            3,
            6,
            7,
            8,
            12,
            13,
            14
          ],
          "L20-A": [
            1,
            2,
            4,
            5,
            9,
            10,
            11,
            15
          ]
        }
      },
      "started_at": 1789011124.5418792,
      "finished_at": 1789011191.0470433,
      "elapsed": 66.50516414642334,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 76,
      "output_tokens_per_second": 184.7676065116644,
      "ttft": {
        "p50": 0.5059665106236935,
        "p95": 5.577507300302386,
        "p99": 7.128125751391053
      },
      "tpot": {
        "p50": 0.05924009722400838,
        "p95": 0.07149531227338501,
        "p99": 0.08234302459328662
      },
      "e2e": {
        "p50": 8.551571063697338,
        "p95": 13.251083742827177,
        "p99": 14.721846896782518
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 5.655408913269639
        },
        "1": {
          "requests": 2,
          "ttft_p95": 1.8203651532530785
        },
        "2": {
          "requests": 2,
          "ttft_p95": 3.64484397880733
        },
        "3": {
          "requests": 2,
          "ttft_p95": 1.8537718001753092
        },
        "4": {
          "requests": 1,
          "ttft_p95": 1.8390013128519058
        },
        "5": {
          "requests": 1,
          "ttft_p95": 1.9349281266331673
        },
        "6": {
          "requests": 1,
          "ttft_p95": 5.038378804922104
        },
        "7": {
          "requests": 1,
          "ttft_p95": 0.7495241537690163
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 42,
          "engine_completed": 42.0,
          "cache_queries_tokens": 212087.0,
          "cache_hit_tokens": 183456.0,
          "cache_hit_ratio": 0.865003512709407,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 39,
            "1": 1,
            "7": 1,
            "3": 1
          },
          "kv_usage_peak": 0.21111111111111114,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        },
        "L20-B": {
          "requests": 54,
          "engine_completed": 54.0,
          "cache_queries_tokens": 272652.0,
          "cache_hit_tokens": 239904.0,
          "cache_hit_ratio": 0.8798908498745653,
          "waiting_peak": 5.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 47,
            "2": 2,
            "3": 1,
            "4": 1,
            "5": 1,
            "6": 1,
            "1": 1
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 14
        }
      },
      "cache_hit_ratio": 0.8733772194933769,
      "input_tokens_range": [
        5037,
        5055
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "1": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot90-least-request",
      "scenario": "hot90",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot90-least-request",
        "route": "least-request",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "family_map": {
          "0": 1,
          "1": 2,
          "2": 3,
          "3": 5,
          "4": 0,
          "5": 4,
          "6": 6,
          "7": 7
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            4,
            6,
            7,
            9,
            13
          ],
          "L20-B": [
            1,
            2,
            3,
            5,
            8,
            10,
            11,
            12,
            14,
            15
          ]
        }
      },
      "started_at": 1789011258.1958895,
      "finished_at": 1789011324.655947,
      "elapsed": 66.46005749702454,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.8930088655151,
      "ttft": {
        "p50": 0.2531803250312805,
        "p95": 1.7712857201695442,
        "p99": 1.9459301479160784
      },
      "tpot": {
        "p50": 0.05814826066099753,
        "p95": 0.07034420965635402,
        "p99": 0.07153422007058545
      },
      "e2e": {
        "p50": 7.668131113052368,
        "p95": 9.230933478102088,
        "p99": 10.71501583904028
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 0.2777401525527239
        },
        "1": {
          "requests": 2,
          "ttft_p95": 1.7683553658425808
        },
        "2": {
          "requests": 2,
          "ttft_p95": 1.8757876500487327
        },
        "3": {
          "requests": 2,
          "ttft_p95": 1.747208471596241
        },
        "4": {
          "requests": 1,
          "ttft_p95": 0.23508307337760925
        },
        "5": {
          "requests": 1,
          "ttft_p95": 0.3200809359550476
        },
        "6": {
          "requests": 1,
          "ttft_p95": 1.932257518172264
        },
        "7": {
          "requests": 1,
          "ttft_p95": 1.9452192783355713
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 47,
          "engine_completed": 47.0,
          "cache_queries_tokens": 237238.0,
          "cache_hit_tokens": 202272.0,
          "cache_hit_ratio": 0.8526121447660155,
          "waiting_peak": 0.0,
          "running_peak": 7.0,
          "family_counts": {
            "0": 42,
            "1": 1,
            "4": 1,
            "5": 1,
            "3": 1,
            "2": 1
          },
          "kv_usage_peak": 0.2055555555555556,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 7
        },
        "L20-B": {
          "requests": 49,
          "engine_completed": 49.0,
          "cache_queries_tokens": 247329.0,
          "cache_hit_tokens": 221088.0,
          "cache_hit_ratio": 0.8939024538165763,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 44,
            "2": 1,
            "7": 1,
            "3": 1,
            "6": 1,
            "1": 1
          },
          "kv_usage_peak": 0.2222222222222222,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 7
        }
      },
      "cache_hit_ratio": 0.8736872300424915,
      "input_tokens_range": [
        5038,
        5056
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r1-hot90-prefix-cache",
      "scenario": "hot90",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 102,
        "phase": "r1-hot90-prefix-cache",
        "route": "prefix-cache",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "family_map": {
          "0": 1,
          "1": 2,
          "2": 5,
          "3": 7,
          "4": 0,
          "5": 3,
          "6": 4,
          "7": 6
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            3,
            4,
            6,
            8,
            12,
            13
          ],
          "L20-B": [
            1,
            2,
            5,
            7,
            9,
            10,
            11,
            14,
            15
          ]
        }
      },
      "started_at": 1789011391.4763699,
      "finished_at": 1789011457.931523,
      "elapsed": 66.45515322685242,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 68,
      "output_tokens_per_second": 184.90665363532423,
      "ttft": {
        "p50": 0.2655151002109051,
        "p95": 6.534815788269043,
        "p99": 8.635130843520164
      },
      "tpot": {
        "p50": 0.058757506281606794,
        "p95": 0.05988296831217338,
        "p99": 0.05995005121029268
      },
      "e2e": {
        "p50": 7.822031084448099,
        "p95": 14.144900068640709,
        "p99": 16.23470475934446
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 7.868479207158089
        },
        "1": {
          "requests": 2,
          "ttft_p95": 5.573992416635155
        },
        "2": {
          "requests": 2,
          "ttft_p95": 5.560567682981491
        },
        "3": {
          "requests": 2,
          "ttft_p95": 4.088350947573781
        },
        "4": {
          "requests": 1,
          "ttft_p95": 0.23268603533506393
        },
        "5": {
          "requests": 1,
          "ttft_p95": 1.8143647611141205
        },
        "6": {
          "requests": 1,
          "ttft_p95": 3.0399561524391174
        },
        "7": {
          "requests": 1,
          "ttft_p95": 0.3042176067829132
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 38,
          "engine_completed": 38.0,
          "cache_queries_tokens": 191793.0,
          "cache_hit_tokens": 174048.0,
          "cache_hit_ratio": 0.9074783751231796,
          "waiting_peak": 3.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 34,
            "7": 1,
            "4": 1,
            "5": 1,
            "6": 1
          },
          "kv_usage_peak": 0.22777777777777775,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 11
        },
        "L20-B": {
          "requests": 58,
          "engine_completed": 58.0,
          "cache_queries_tokens": 292712.0,
          "cache_hit_tokens": 272832.0,
          "cache_hit_ratio": 0.9320834130476373,
          "waiting_peak": 8.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 52,
            "2": 2,
            "1": 2,
            "3": 2
          },
          "kv_usage_peak": 0.22777777777777775,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 16
        }
      },
      "cache_hit_ratio": 0.9223434226684967,
      "input_tokens_range": [
        5033,
        5055
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "7": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_load_imbalance_total",
          "labels": {
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "0",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "least_request_fallback",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-cold-uniform-prefix-cache",
      "scenario": "cold-uniform",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-cold-uniform-prefix-cache",
        "route": "prefix-cache",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011467.6431074,
      "finished_at": 1789011539.4061353,
      "elapsed": 71.76302790641785,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 40,
      "output_tokens_per_second": 171.23023315047539,
      "ttft": {
        "p50": 3.9235811941325665,
        "p95": 9.049018492922187,
        "p99": 9.624168029055
      },
      "tpot": {
        "p50": 0.05771406995147232,
        "p95": 0.06607509510019632,
        "p99": 0.07925743788598082
      },
      "e2e": {
        "p50": 11.715564765036106,
        "p95": 16.37100290507078,
        "p99": 17.01672579050064
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 9.297714304178953
        },
        "1": {
          "requests": 12,
          "ttft_p95": 8.55538592785597
        },
        "2": {
          "requests": 12,
          "ttft_p95": 9.350710087269544
        },
        "3": {
          "requests": 12,
          "ttft_p95": 7.888674551621078
        },
        "4": {
          "requests": 12,
          "ttft_p95": 9.155173628777264
        },
        "5": {
          "requests": 12,
          "ttft_p95": 2.587392183765768
        },
        "6": {
          "requests": 12,
          "ttft_p95": 2.619081878662109
        },
        "7": {
          "requests": 12,
          "ttft_p95": 1.0001511689275493
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 60,
          "engine_completed": 60.0,
          "cache_queries_tokens": 302976.0,
          "cache_hit_tokens": 258720.0,
          "cache_hit_ratio": 0.8539290240811154,
          "waiting_peak": 9.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 12,
            "1": 12,
            "4": 12,
            "3": 12,
            "2": 12
          },
          "kv_usage_peak": 0.34444444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 17
        },
        "L20-B": {
          "requests": 36,
          "engine_completed": 36.0,
          "cache_queries_tokens": 181764.0,
          "cache_hit_tokens": 155232.0,
          "cache_hit_ratio": 0.8540305010893247,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 12,
            "6": 12,
            "7": 12
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 9
        }
      },
      "cache_hit_ratio": 0.853967075133061,
      "input_tokens_range": [
        5041,
        5054
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "0",
            "using_kv_sync": "false"
          },
          "delta": 8.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 88.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "least_request_fallback",
            "using_kv_sync": "false"
          },
          "delta": 8.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 88.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-cold-uniform-least-request",
      "scenario": "cold-uniform",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-cold-uniform-least-request",
        "route": "least-request",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011549.7871282,
      "finished_at": 1789011616.2854252,
      "elapsed": 66.49829697608948,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 48,
      "output_tokens_per_second": 184.78668716009895,
      "ttft": {
        "p50": 2.014620430767536,
        "p95": 6.421984747052193,
        "p99": 8.911895686015484
      },
      "tpot": {
        "p50": 0.05914818545378099,
        "p95": 0.08448528089215906,
        "p99": 0.10647490067979483
      },
      "e2e": {
        "p50": 10.157871175557375,
        "p95": 15.754990523681045,
        "p99": 16.856412110105154
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 4.74367062486708
        },
        "1": {
          "requests": 12,
          "ttft_p95": 6.013075890019536
        },
        "2": {
          "requests": 12,
          "ttft_p95": 8.708676785603163
        },
        "3": {
          "requests": 12,
          "ttft_p95": 8.591467306017876
        },
        "4": {
          "requests": 12,
          "ttft_p95": 5.542165228724478
        },
        "5": {
          "requests": 12,
          "ttft_p95": 4.344345868006347
        },
        "6": {
          "requests": 12,
          "ttft_p95": 5.078483608737588
        },
        "7": {
          "requests": 12,
          "ttft_p95": 3.4343935079872603
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 47,
          "engine_completed": 47.0,
          "cache_queries_tokens": 237177.0,
          "cache_hit_tokens": 183456.0,
          "cache_hit_ratio": 0.7734982734413539,
          "waiting_peak": 5.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 7,
            "6": 9,
            "3": 5,
            "2": 2,
            "1": 5,
            "0": 6,
            "4": 6,
            "7": 7
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 12
        },
        "L20-B": {
          "requests": 49,
          "engine_completed": 49.0,
          "cache_queries_tokens": 247263.0,
          "cache_hit_tokens": 192864.0,
          "cache_hit_ratio": 0.7799953895245144,
          "waiting_peak": 5.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 6,
            "6": 3,
            "1": 7,
            "4": 6,
            "7": 5,
            "2": 10,
            "5": 5,
            "3": 7
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 12
        }
      },
      "cache_hit_ratio": 0.7768144661877632,
      "input_tokens_range": [
        5039,
        5059
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-cold-uniform-random",
      "scenario": "cold-uniform",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-cold-uniform-random",
        "route": "random",
        "scenario": "cold-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011622.0207047,
      "finished_at": 1789011688.484504,
      "elapsed": 66.46379923820496,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 28,
      "output_tokens_per_second": 184.88259986402596,
      "ttft": {
        "p50": 3.9810546934604645,
        "p95": 9.229463338851929,
        "p99": 11.614911141246555
      },
      "tpot": {
        "p50": 0.059374930351737916,
        "p95": 0.0732773323580036,
        "p99": 0.106817148482119
      },
      "e2e": {
        "p50": 11.742126014083624,
        "p95": 16.88234523124993,
        "p99": 19.585989352315664
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 6.821951773390172
        },
        "1": {
          "requests": 12,
          "ttft_p95": 9.922882866114376
        },
        "2": {
          "requests": 12,
          "ttft_p95": 9.752746560797094
        },
        "3": {
          "requests": 12,
          "ttft_p95": 7.70459993854165
        },
        "4": {
          "requests": 12,
          "ttft_p95": 9.309093577042217
        },
        "5": {
          "requests": 12,
          "ttft_p95": 8.01976978369057
        },
        "6": {
          "requests": 12,
          "ttft_p95": 7.799925598874688
        },
        "7": {
          "requests": 12,
          "ttft_p95": 9.490647596493362
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 47,
          "engine_completed": 47.0,
          "cache_queries_tokens": 237223.0,
          "cache_hit_tokens": 183456.0,
          "cache_hit_ratio": 0.7733482841039866,
          "waiting_peak": 6.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 7,
            "4": 8,
            "7": 7,
            "0": 6,
            "3": 4,
            "2": 6,
            "1": 6,
            "6": 3
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 13
        },
        "L20-B": {
          "requests": 49,
          "engine_completed": 49.0,
          "cache_queries_tokens": 257480.0,
          "cache_hit_tokens": 202272.0,
          "cache_hit_ratio": 0.7855833462793227,
          "waiting_peak": 8.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 6,
            "5": 5,
            "6": 9,
            "1": 6,
            "3": 8,
            "2": 6,
            "4": 4,
            "7": 5
          },
          "kv_usage_peak": 0.3277777777777777,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 16
        }
      },
      "cache_hit_ratio": 0.7797163146372672,
      "input_tokens_range": [
        5038,
        5057
      ],
      "initial_prefix_owners": {},
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-warm-uniform-prefix-cache",
      "scenario": "warm-uniform",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-warm-uniform-prefix-cache",
        "route": "prefix-cache",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011731.4580324,
      "finished_at": 1789011804.905601,
      "elapsed": 73.44756865501404,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 43,
      "output_tokens_per_second": 167.30301935135788,
      "ttft": {
        "p50": 2.787152159959078,
        "p95": 9.691724134609103,
        "p99": 10.201579476892947
      },
      "tpot": {
        "p50": 0.059813436619409424,
        "p95": 0.06041239219622349,
        "p99": 0.0604410915452195
      },
      "e2e": {
        "p50": 10.417629975825548,
        "p95": 17.231714725494385,
        "p99": 17.85434697344899
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 9.415290377661584
        },
        "1": {
          "requests": 12,
          "ttft_p95": 8.536095591634512
        },
        "2": {
          "requests": 12,
          "ttft_p95": 9.020859767124056
        },
        "3": {
          "requests": 12,
          "ttft_p95": 0.2644037738442421
        },
        "4": {
          "requests": 12,
          "ttft_p95": 0.324751478433609
        },
        "5": {
          "requests": 12,
          "ttft_p95": 9.381297013163566
        },
        "6": {
          "requests": 12,
          "ttft_p95": 9.948886955156922
        },
        "7": {
          "requests": 12,
          "ttft_p95": 9.921032370254396
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 70,
          "engine_completed": 70.0,
          "cache_queries_tokens": 353562.0,
          "cache_hit_tokens": 329280.0,
          "cache_hit_ratio": 0.9313218049451015,
          "waiting_peak": 9.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 12,
            "5": 10,
            "6": 12,
            "1": 12,
            "2": 12,
            "7": 12
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 18
        },
        "L20-B": {
          "requests": 26,
          "engine_completed": 26.0,
          "cache_queries_tokens": 131274.0,
          "cache_hit_tokens": 122304.0,
          "cache_hit_ratio": 0.9316696375519905,
          "waiting_peak": 0.0,
          "running_peak": 5.0,
          "family_counts": {
            "4": 12,
            "3": 12,
            "5": 2
          },
          "kv_usage_peak": 0.1611111111111111,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 5
        }
      },
      "cache_hit_ratio": 0.931415983961587,
      "input_tokens_range": [
        5037,
        5059
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-A"
        ],
        "1": [
          "L20-A"
        ],
        "2": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "4": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_load_imbalance_total",
          "labels": {
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "0",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "least_request_fallback",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-warm-uniform-least-request",
      "scenario": "warm-uniform",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-warm-uniform-least-request",
        "route": "least-request",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011843.8733878,
      "finished_at": 1789011910.4584093,
      "elapsed": 66.58502149581909,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.5460093569478,
      "ttft": {
        "p50": 0.29455476254224777,
        "p95": 0.32685100845992565,
        "p99": 0.32820532061159613
      },
      "tpot": {
        "p50": 0.0575501752181316,
        "p95": 0.05853676773959726,
        "p99": 0.05863288396632108
      },
      "e2e": {
        "p50": 7.604985576122999,
        "p95": 7.71265228651464,
        "p99": 7.732177110388875
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 0.27084164805710315
        },
        "1": {
          "requests": 12,
          "ttft_p95": 0.2636007729917765
        },
        "2": {
          "requests": 12,
          "ttft_p95": 0.32168317735195157
        },
        "3": {
          "requests": 12,
          "ttft_p95": 0.32126054503023627
        },
        "4": {
          "requests": 12,
          "ttft_p95": 0.3285590413957834
        },
        "5": {
          "requests": 12,
          "ttft_p95": 0.32554651238024235
        },
        "6": {
          "requests": 12,
          "ttft_p95": 0.32623265609145163
        },
        "7": {
          "requests": 12,
          "ttft_p95": 0.32657606676220896
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 50,
          "engine_completed": 50.0,
          "cache_queries_tokens": 252366.0,
          "cache_hit_tokens": 235200.0,
          "cache_hit_ratio": 0.9319797437055705,
          "waiting_peak": 0.0,
          "running_peak": 7.0,
          "family_counts": {
            "0": 8,
            "6": 10,
            "1": 5,
            "4": 8,
            "7": 3,
            "3": 5,
            "2": 6,
            "5": 5
          },
          "kv_usage_peak": 0.25555555555555554,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 6
        },
        "L20-B": {
          "requests": 46,
          "engine_completed": 46.0,
          "cache_queries_tokens": 232278.0,
          "cache_hit_tokens": 216384.0,
          "cache_hit_ratio": 0.9315733732854596,
          "waiting_peak": 0.0,
          "running_peak": 6.0,
          "family_counts": {
            "5": 7,
            "6": 2,
            "3": 7,
            "2": 6,
            "1": 7,
            "0": 4,
            "4": 4,
            "7": 9
          },
          "kv_usage_peak": 0.23333333333333328,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 6
        }
      },
      "cache_hit_ratio": 0.931784980315448,
      "input_tokens_range": [
        5042,
        5057
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "4": [
          "L20-B"
        ],
        "5": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-warm-uniform-random",
      "scenario": "warm-uniform",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-warm-uniform-random",
        "route": "random",
        "scenario": "warm-uniform",
        "hot_fraction": 0
      },
      "started_at": 1789011957.197683,
      "finished_at": 1789012024.1067,
      "elapsed": 66.90901684761047,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 91,
      "output_tokens_per_second": 183.652377197332,
      "ttft": {
        "p50": 0.30719005689024925,
        "p95": 1.975122157484293,
        "p99": 2.77599740922451
      },
      "tpot": {
        "p50": 0.058802871370878744,
        "p95": 0.06004827616252298,
        "p99": 0.06039361008626269
      },
      "e2e": {
        "p50": 7.805552441626787,
        "p95": 9.525354649871588,
        "p99": 10.173984519392253
      },
      "families": {
        "0": {
          "requests": 12,
          "ttft_p95": 1.6152456454932682
        },
        "1": {
          "requests": 12,
          "ttft_p95": 1.7728785298764693
        },
        "2": {
          "requests": 12,
          "ttft_p95": 0.8353696819394822
        },
        "3": {
          "requests": 12,
          "ttft_p95": 1.526766293123364
        },
        "4": {
          "requests": 12,
          "ttft_p95": 1.2333523835986844
        },
        "5": {
          "requests": 12,
          "ttft_p95": 1.9162524480372656
        },
        "6": {
          "requests": 12,
          "ttft_p95": 2.5752420756965875
        },
        "7": {
          "requests": 12,
          "ttft_p95": 1.272710502892732
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 54,
          "engine_completed": 54.0,
          "cache_queries_tokens": 272606.0,
          "cache_hit_tokens": 254016.0,
          "cache_hit_ratio": 0.9318063432206187,
          "waiting_peak": 3.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 6,
            "6": 8,
            "1": 7,
            "4": 7,
            "2": 7,
            "0": 7,
            "7": 4,
            "3": 8
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 10
        },
        "L20-B": {
          "requests": 42,
          "engine_completed": 42.0,
          "cache_queries_tokens": 212038.0,
          "cache_hit_tokens": 197568.0,
          "cache_hit_ratio": 0.9317575151623766,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 5,
            "6": 4,
            "5": 6,
            "3": 4,
            "7": 8,
            "4": 5,
            "1": 5,
            "2": 5
          },
          "kv_usage_peak": 0.2944444444444444,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 9
        }
      },
      "cache_hit_ratio": 0.931784980315448,
      "input_tokens_range": [
        5044,
        5053
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-A"
        ],
        "4": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-B"
        ],
        "7": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot50-prefix-cache",
      "scenario": "hot50",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot50-prefix-cache",
        "route": "prefix-cache",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 1,
          "1": 2,
          "2": 4,
          "3": 6,
          "4": 0,
          "5": 3,
          "6": 5,
          "7": 9
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            3,
            5,
            9,
            12,
            13
          ],
          "L20-B": [
            1,
            2,
            4,
            6,
            7,
            8,
            10,
            11,
            14,
            15
          ]
        }
      },
      "started_at": 1789012090.2131815,
      "finished_at": 1789012164.7242572,
      "elapsed": 74.51107573509216,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 37,
      "output_tokens_per_second": 164.91507978877257,
      "ttft": {
        "p50": 3.5502808205783367,
        "p95": 8.279433779418468,
        "p99": 9.037596520781516
      },
      "tpot": {
        "p50": 0.059522357277982815,
        "p95": 0.05994217839884007,
        "p99": 0.059981037385937734
      },
      "e2e": {
        "p50": 11.15521989017725,
        "p95": 15.496875271201134,
        "p99": 16.269203029200433
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 8.160393963754176
        },
        "1": {
          "requests": 7,
          "ttft_p95": 8.319093302637338
        },
        "2": {
          "requests": 7,
          "ttft_p95": 8.318537673354149
        },
        "3": {
          "requests": 7,
          "ttft_p95": 8.255910852551459
        },
        "4": {
          "requests": 7,
          "ttft_p95": 0.2664105579257011
        },
        "5": {
          "requests": 7,
          "ttft_p95": 0.31516672149300573
        },
        "6": {
          "requests": 7,
          "ttft_p95": 0.3146488405764103
        },
        "7": {
          "requests": 6,
          "ttft_p95": 0.317665571346879
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 27,
          "engine_completed": 27.0,
          "cache_queries_tokens": 136338.0,
          "cache_hit_tokens": 127008.0,
          "cache_hit_ratio": 0.9315671346213088,
          "waiting_peak": 0.0,
          "running_peak": 5.0,
          "family_counts": {
            "5": 7,
            "7": 6,
            "4": 7,
            "6": 7
          },
          "kv_usage_peak": 0.1611111111111111,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 4
        },
        "L20-B": {
          "requests": 69,
          "engine_completed": 69.0,
          "cache_queries_tokens": 348561.0,
          "cache_hit_tokens": 324576.0,
          "cache_hit_ratio": 0.9311885150662295,
          "waiting_peak": 9.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 7,
            "0": 48,
            "3": 7,
            "2": 7
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 17
        }
      },
      "cache_hit_ratio": 0.9312949707052397,
      "input_tokens_range": [
        5043,
        5057
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "3": [
          "L20-B"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 96.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot50-least-request",
      "scenario": "hot50",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot50-least-request",
        "route": "least-request",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 4,
          "1": 5,
          "2": 6,
          "3": 7,
          "4": 0,
          "5": 1,
          "6": 2,
          "7": 3
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            1,
            2,
            3,
            10,
            11,
            13,
            14
          ],
          "L20-B": [
            4,
            5,
            6,
            7,
            8,
            9,
            12,
            15
          ]
        }
      },
      "started_at": 1789012232.8982036,
      "finished_at": 1789012299.3570766,
      "elapsed": 66.45887303352356,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 94,
      "output_tokens_per_second": 184.8963041218231,
      "ttft": {
        "p50": 0.30876121297478676,
        "p95": 1.906560517847538,
        "p99": 2.128040137141942
      },
      "tpot": {
        "p50": 0.05805210907041557,
        "p95": 0.08191613961509833,
        "p99": 0.08248911810613524
      },
      "e2e": {
        "p50": 7.673840917646885,
        "p95": 10.761129511520267,
        "p99": 11.099320156872269
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 1.1114738378673785
        },
        "1": {
          "requests": 7,
          "ttft_p95": 1.5627510651946062
        },
        "2": {
          "requests": 7,
          "ttft_p95": 1.713151154667138
        },
        "3": {
          "requests": 7,
          "ttft_p95": 2.265162721276283
        },
        "4": {
          "requests": 7,
          "ttft_p95": 1.6814505770802497
        },
        "5": {
          "requests": 7,
          "ttft_p95": 1.391314558684825
        },
        "6": {
          "requests": 7,
          "ttft_p95": 1.7440869666635985
        },
        "7": {
          "requests": 6,
          "ttft_p95": 1.5228393636643887
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 47,
          "engine_completed": 47.0,
          "cache_queries_tokens": 237345.0,
          "cache_hit_tokens": 202272.0,
          "cache_hit_ratio": 0.852227769702332,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 3,
            "5": 4,
            "4": 4,
            "0": 23,
            "3": 2,
            "6": 5,
            "7": 3,
            "2": 3
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        },
        "L20-B": {
          "requests": 49,
          "engine_completed": 49.0,
          "cache_queries_tokens": 247427.0,
          "cache_hit_tokens": 211680.0,
          "cache_hit_ratio": 0.8555250639582584,
          "waiting_peak": 1.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 3,
            "0": 25,
            "7": 3,
            "1": 4,
            "2": 4,
            "3": 5,
            "4": 3,
            "6": 2
          },
          "kv_usage_peak": 0.23888888888888893,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        }
      },
      "cache_hit_ratio": 0.8539107044136213,
      "input_tokens_range": [
        5043,
        5055
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot50-random",
      "scenario": "hot50",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot50-random",
        "route": "random",
        "scenario": "hot50",
        "hot_fraction": 0.5,
        "family_map": {
          "0": 2,
          "1": 6,
          "2": 8,
          "3": 10,
          "4": 0,
          "5": 1,
          "6": 3,
          "7": 4
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-A": [
            0,
            1,
            3,
            4,
            5,
            7,
            9,
            11,
            12,
            13
          ],
          "L20-B": [
            2,
            6,
            8,
            10,
            14,
            15
          ]
        }
      },
      "started_at": 1789012365.7830102,
      "finished_at": 1789012433.517839,
      "elapsed": 67.73482871055603,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 63,
      "output_tokens_per_second": 181.41331769670506,
      "ttft": {
        "p50": 1.200280174612999,
        "p95": 5.990455159917474,
        "p99": 7.993260704353448
      },
      "tpot": {
        "p50": 0.05892420284391388,
        "p95": 0.08173950342094805,
        "p99": 0.08281499619383043
      },
      "e2e": {
        "p50": 9.516641147434711,
        "p95": 13.50763475522399,
        "p99": 15.428895346447822
      },
      "families": {
        "0": {
          "requests": 48,
          "ttft_p95": 6.107920261472463
        },
        "1": {
          "requests": 7,
          "ttft_p95": 3.4552532427012914
        },
        "2": {
          "requests": 7,
          "ttft_p95": 2.6491780169308186
        },
        "3": {
          "requests": 7,
          "ttft_p95": 5.896825478225946
        },
        "4": {
          "requests": 7,
          "ttft_p95": 4.233136876672505
        },
        "5": {
          "requests": 7,
          "ttft_p95": 6.103107029199596
        },
        "6": {
          "requests": 7,
          "ttft_p95": 5.526943464577197
        },
        "7": {
          "requests": 6,
          "ttft_p95": 4.205813007429242
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 39,
          "engine_completed": 39.0,
          "cache_queries_tokens": 196897.0,
          "cache_hit_tokens": 164640.0,
          "cache_hit_ratio": 0.8361732276266272,
          "waiting_peak": 2.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 21,
            "4": 3,
            "3": 3,
            "6": 3,
            "2": 3,
            "7": 2,
            "5": 3,
            "1": 1
          },
          "kv_usage_peak": 0.26111111111111107,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 9
        },
        "L20-B": {
          "requests": 57,
          "engine_completed": 57.0,
          "cache_queries_tokens": 287759.0,
          "cache_hit_tokens": 249312.0,
          "cache_hit_ratio": 0.8663916680277594,
          "waiting_peak": 7.0,
          "running_peak": 8.0,
          "family_counts": {
            "1": 6,
            "5": 4,
            "0": 27,
            "7": 4,
            "4": 4,
            "3": 4,
            "2": 4,
            "6": 4
          },
          "kv_usage_peak": 0.2777777777777778,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 16
        }
      },
      "cache_hit_ratio": 0.8541150836882242,
      "input_tokens_range": [
        5040,
        5057
      ],
      "initial_prefix_owners": {
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "0": [
          "L20-B"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot90-prefix-cache",
      "scenario": "hot90",
      "route": "prefix-cache",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot90-prefix-cache",
        "route": "prefix-cache",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "family_map": {
          "0": 0,
          "1": 1,
          "2": 6,
          "3": 8,
          "4": 2,
          "5": 3,
          "6": 4,
          "7": 5
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            1,
            6,
            8,
            9,
            11,
            12,
            13,
            14,
            15
          ],
          "L20-A": [
            2,
            3,
            4,
            5,
            7,
            10
          ]
        }
      },
      "started_at": 1789012498.9602294,
      "finished_at": 1789012565.4855494,
      "elapsed": 66.52532005310059,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 61,
      "output_tokens_per_second": 184.71162544113585,
      "ttft": {
        "p50": 0.4827696830034256,
        "p95": 8.00105095654726,
        "p99": 8.189690273255103
      },
      "tpot": {
        "p50": 0.05911165417179348,
        "p95": 0.0598406158387661,
        "p99": 0.059896551060864306
      },
      "e2e": {
        "p50": 8.018384721130133,
        "p95": 15.599967561662197,
        "p99": 15.787338067963711
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 8.008528791368008
        },
        "1": {
          "requests": 2,
          "ttft_p95": 7.919788390025497
        },
        "2": {
          "requests": 2,
          "ttft_p95": 0.25906121656298636
        },
        "3": {
          "requests": 2,
          "ttft_p95": 5.041661653667688
        },
        "4": {
          "requests": 1,
          "ttft_p95": 0.24943694472312927
        },
        "5": {
          "requests": 1,
          "ttft_p95": 0.17518094927072525
        },
        "6": {
          "requests": 1,
          "ttft_p95": 0.276697039604187
        },
        "7": {
          "requests": 1,
          "ttft_p95": 0.24971402436494827
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 38,
          "engine_completed": 38.0,
          "cache_queries_tokens": 191417.0,
          "cache_hit_tokens": 174048.0,
          "cache_hit_ratio": 0.909260932936991,
          "waiting_peak": 4.0,
          "running_peak": 8.0,
          "family_counts": {
            "5": 1,
            "0": 34,
            "4": 1,
            "7": 1,
            "6": 1
          },
          "kv_usage_peak": 0.2222222222222222,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 11
        },
        "L20-B": {
          "requests": 58,
          "engine_completed": 58.0,
          "cache_queries_tokens": 292142.0,
          "cache_hit_tokens": 272832.0,
          "cache_hit_ratio": 0.9339020065584545,
          "waiting_peak": 8.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 52,
            "2": 2,
            "3": 2,
            "1": 2
          },
          "kv_usage_peak": 0.22777777777777775,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 16
        }
      },
      "cache_hit_ratio": 0.9241478289102261,
      "input_tokens_range": [
        5036,
        5054
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ]
      },
      "routing_counter_deltas": [
        {
          "name": "aibrix_prefix_cache_load_imbalance_total",
          "labels": {
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "0",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_decisions_total",
          "labels": {
            "match_percent_bucket": "76-100",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "least_request_fallback",
            "using_kv_sync": "false"
          },
          "delta": 1.0
        },
        {
          "name": "aibrix_prefix_cache_routing_selection_total",
          "labels": {
            "selection": "prefix_match",
            "using_kv_sync": "false"
          },
          "delta": 95.0
        }
      ],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot90-least-request",
      "scenario": "hot90",
      "route": "least-request",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot90-least-request",
        "route": "least-request",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "setup_attempt": 1,
        "family_map": {
          "0": 0,
          "1": 1,
          "2": 3,
          "3": 4,
          "4": 2,
          "5": 8,
          "6": 9,
          "7": 10
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            1,
            3,
            4,
            5,
            6,
            7,
            12,
            14,
            15
          ],
          "L20-A": [
            2,
            8,
            9,
            10,
            11,
            13
          ]
        },
        "hot_initial_replica": "L20-B"
      },
      "started_at": 1789013130.5579305,
      "finished_at": 1789013197.065952,
      "elapsed": 66.50802159309387,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 96,
      "output_tokens_per_second": 184.75966816724517,
      "ttft": {
        "p50": 0.24762201681733131,
        "p95": 1.2548386119306087,
        "p99": 1.817657086998224
      },
      "tpot": {
        "p50": 0.0574647881031975,
        "p95": 0.08216373670816891,
        "p99": 0.08270335369926737
      },
      "e2e": {
        "p50": 7.552020709961653,
        "p95": 10.681106625124812,
        "p99": 10.753079039230942
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 0.44363366439938545
        },
        "1": {
          "requests": 2,
          "ttft_p95": 1.70394891127944
        },
        "2": {
          "requests": 2,
          "ttft_p95": 1.8258328642696142
        },
        "3": {
          "requests": 2,
          "ttft_p95": 1.737726131826639
        },
        "4": {
          "requests": 1,
          "ttft_p95": 0.2963944748044014
        },
        "5": {
          "requests": 1,
          "ttft_p95": 1.7499769628047943
        },
        "6": {
          "requests": 1,
          "ttft_p95": 0.256707102060318
        },
        "7": {
          "requests": 1,
          "ttft_p95": 0.29823533445596695
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242728.0,
          "cache_hit_tokens": 206976.0,
          "cache_hit_ratio": 0.8527075574305395,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 42,
            "2": 1,
            "3": 1,
            "1": 1,
            "4": 1,
            "7": 1,
            "6": 1
          },
          "kv_usage_peak": 0.22777777777777775,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        },
        "L20-B": {
          "requests": 48,
          "engine_completed": 48.0,
          "cache_queries_tokens": 242736.0,
          "cache_hit_tokens": 221088.0,
          "cache_hit_ratio": 0.9108166897369983,
          "waiting_peak": 0.0,
          "running_peak": 7.0,
          "family_counts": {
            "0": 44,
            "5": 1,
            "1": 1,
            "2": 1,
            "3": 1
          },
          "kv_usage_peak": 0.18888888888888888,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 8
        }
      },
      "cache_hit_ratio": 0.8817626023762833,
      "input_tokens_range": [
        5042,
        5058
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    },
    {
      "phase": "r2-hot90-random",
      "scenario": "hot90",
      "route": "random",
      "config": {
        "repeat": 300,
        "output": 128,
        "count": 96,
        "rps": 1.6,
        "seed": 103,
        "phase": "r2-hot90-random",
        "route": "random",
        "scenario": "hot90",
        "hot_fraction": 0.9,
        "setup_attempt": 1,
        "family_map": {
          "0": 0,
          "1": 1,
          "2": 2,
          "3": 3,
          "4": 4,
          "5": 6,
          "6": 9,
          "7": 10
        },
        "priming_candidates": 16,
        "initial_owners": {
          "L20-B": [
            0,
            1,
            2,
            3,
            5,
            7,
            8,
            14,
            15
          ],
          "L20-A": [
            4,
            6,
            9,
            10,
            11,
            12,
            13
          ]
        },
        "hot_initial_replica": "L20-B"
      },
      "started_at": 1789013263.1756544,
      "finished_at": 1789013329.9751005,
      "elapsed": 66.79944610595703,
      "planned": 96,
      "requests": 96,
      "success": 96,
      "errors": 0,
      "dropped": 0,
      "good": 78,
      "output_tokens_per_second": 183.95362111998384,
      "ttft": {
        "p50": 0.2660147622227669,
        "p95": 3.5465419106185436,
        "p99": 4.15175206400454
      },
      "tpot": {
        "p50": 0.05846654664813064,
        "p95": 0.07084438118232986,
        "p99": 0.08295000277048958
      },
      "e2e": {
        "p50": 8.033303264528513,
        "p95": 11.275365183129907,
        "p99": 11.810684513300655
      },
      "families": {
        "0": {
          "requests": 86,
          "ttft_p95": 3.6961476989090443
        },
        "1": {
          "requests": 2,
          "ttft_p95": 1.7950916856527328
        },
        "2": {
          "requests": 2,
          "ttft_p95": 0.3154554035514593
        },
        "3": {
          "requests": 2,
          "ttft_p95": 2.6801572628319263
        },
        "4": {
          "requests": 1,
          "ttft_p95": 0.27974214404821396
        },
        "5": {
          "requests": 1,
          "ttft_p95": 1.8609870001673698
        },
        "6": {
          "requests": 1,
          "ttft_p95": 0.25577594339847565
        },
        "7": {
          "requests": 1,
          "ttft_p95": 1.9173000305891037
        }
      },
      "replicas": {
        "L20-A": {
          "requests": 53,
          "engine_completed": 53.0,
          "cache_queries_tokens": 267659.0,
          "cache_hit_tokens": 235200.0,
          "cache_hit_ratio": 0.8787300258911526,
          "waiting_peak": 4.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 48,
            "3": 1,
            "1": 2,
            "4": 1,
            "6": 1
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 11
        },
        "L20-B": {
          "requests": 43,
          "engine_completed": 43.0,
          "cache_queries_tokens": 217148.0,
          "cache_hit_tokens": 192864.0,
          "cache_hit_ratio": 0.8881684381159394,
          "waiting_peak": 0.0,
          "running_peak": 8.0,
          "family_counts": {
            "0": 38,
            "2": 2,
            "5": 1,
            "3": 1,
            "7": 1
          },
          "kv_usage_peak": 0.24444444444444446,
          "preemptions": 0.0,
          "gateway_outstanding_at_selection_peak": 7
        }
      },
      "cache_hit_ratio": 0.8829575480552054,
      "input_tokens_range": [
        5045,
        5055
      ],
      "initial_prefix_owners": {
        "0": [
          "L20-B"
        ],
        "1": [
          "L20-B"
        ],
        "2": [
          "L20-B"
        ],
        "3": [
          "L20-B"
        ],
        "4": [
          "L20-A"
        ],
        "5": [
          "L20-A"
        ],
        "6": [
          "L20-A"
        ],
        "7": [
          "L20-A"
        ]
      },
      "routing_counter_deltas": [],
      "gateway_verified_requests": 96
    }
  ]
}