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Browse all articles by publication or update date (UTC+08:00).
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2026-10
- OpenKruise Agents in Practice: Warm Pools, Sandbox Tasks, and Pause/Resume
Deploy OpenKruise Agents 0.6.0 on Kubernetes 1.30.4, verify the E2B SDK, warm and on-demand creation, filesystem separation and expiry, investigate blocked resume, and compare Kubernetes SIG Apps Agent Sandbox
- DeepInfer in Depth — DeepSeek's Inference Architecture, Benchmark Semantics, and Production Boundaries
A source-level review of DeepInfer's initial public commit, covering DSpark, asynchronous scheduling, Attention DP/CP, MoE EP/EPLB, SWA bounded replay, hardware requirements, and Kubernetes integration boundaries
- DeepSeek 1017: Production Observations on PRO 5000 and H20
A read-only analysis of existing DeepSeek-V4.1-Flash-1017 metrics on RTX PRO 5000 72GB and H20-3e, examining request shapes, TTFT, TPOT, queues, caching, and resource usage.
- OpenSandbox on Kubernetes: Official Console, Task Execution, and Automatic Cleanup
Deploy OpenSandbox 1.1.1 on Kubernetes 1.30.4, validate its official Console, execution, authentication, concurrency, and cleanup, and compare architecture, isolation, snapshots, and enterprise selection with Tencent CubeSandbox
- Agent RL Survey: Tools, Trajectories, Rewards, veRL, and Miles
An overview of agent reinforcement learning, its frameworks and environment ecosystem, focusing on veRL Agent Loop, Miles TITO, fully asynchronous training, MoE routing replay, and Kubernetes engineering
- DeepSeek Search/Fetch: CNY 5 per 1,000 Calls—Still a Price Disruptor?
Compare DeepSeek, OpenAI, Claude, Gemini, Alibaba Model Studio, Brave, and Tavily tool pricing, and understand Search, Fetch, and total agent-task costs
- From Contiv to Kube-OVN: A Single-Node Migration Keeping the Physical VLAN
Replacing one node's primary CNI on an existing VLAN network: physical wiring, shared-IPAM ownership, controller isolation, NotReady diagnosis, and observed connectivity
- NVIDIA NVCRE Architecture and Standalone H20-3e Readiness Tests
Review NVIDIA NVCRE's public release history, purpose, and production integration, using standalone NCCL/DCGM tests on two nodes with 16 H20-3e GPUs to discuss admission, upgrade regression, troubleshooting, and Kubernetes dependencies
- Firecracker and CubeSandbox: Architecture and Enterprise Agent Sandbox Selection
Compare Firecracker and CubeSandbox through their different responsibilities as a VMM and a sandbox platform, covering isolation, Kubernetes integration, templates, snapshots, network governance, and operating costs
- How Tencent, Alibaba, and ByteDance Build Digital Employees: Products, Cases, and Enterprise Adoption
Compare Tencent WorkBuddy Enterprise and Managed Agents, Alibaba QoderWake and DingTalk Wukong, and Feishu Aily through Hema data queries, Meiyijia customer service, and operations reports, covering identity, execution, integration, and acceptance
- CubeSandbox Process-Memory Snapshot and Recovery Tests
Kill a running guest process on CubeSandbox v0.7.3, then verify rollback and memory recovery after deleting its original sandbox, with a reproducible script and Light evidence screenshots
- DeepSeek-V4.1-Flash-1017 Day0: vLLM on Eight H20 GPUs and Million-Token Tests
Eight-GPU vLLM deployment of native mixed-precision DeepSeek 1017 weights, 36 throughput and latency rounds, tools and vision checks, 1M retrieval, and measured resource curves.
- Omarchy Linux and Agent OS Overview: Desktop Systems, Agent Runtimes, and Enterprise Deployment
Starting from Omarchy 4's Linux desktop and Agent integration, compare mainstream Agent OS approaches, and actually install the desktop on KubeVirt, connect models, generate configuration, and verify persistence
- CubeSandbox Agent Adapter v0.6 Multi-Cluster Execution and Practice
Use one Adapter to connect multiple CubeSandbox clusters, practicing internal OpenClaw templates, long-task log continuation, controlled MCP, and persistent audit, with five-client real-world testing and Light screenshots
- HiRoute Technical Overview: Higress Team's Agent Routing and Model Collaboration Engine
An analysis of HiRoute's task routing, model routing, Jev decision-making, ContextHold, stage competence scoring, and limited failover, with a discussion of official cost-reduction experiments, plus hands-on testing of Docker integration with DSH, protocol compatibility, failover, and restart-resume behavior
- ChatGPT Dots Technical Analysis: Persistent Agents, Cloud Computers, and Enterprise Applications
An introduction to ChatGPT Dot's release timing, long-running tasks, memory, cloud and local execution, Codex collaboration, permission controls, and Kubernetes enterprise integration and evaluation methods, based on official OpenAI materials
- Principles and Community Practice of Agent Long-Task Interruption and Resumption
Explains how hour-long agent tasks recover after process crashes, network disconnects, and manual pauses, comparing LangGraph, Temporal, Restate, DBOS, Mastra, and session recovery, with reproducible interruption experiments and Kubernetes architecture recommendations
- OpenClaw Enterprise Kubernetes Deployment in Practice: Persistence, Cross-Cluster Ingress, and Model Validation
Documents an isolated pilot of OCE on Kubernetes, from Ceph RBD, PostgreSQL TLS, image preparation, tenant authorization, to office-network Console and real model replies, explaining DNS, probe, and proxy authentication troubleshooting
- OpenClaw Enterprise Project Analysis: Agent Control Plane, Identity Isolation, and Kubernetes Deployment
An analysis of OpenClaw Enterprise's resource model, persistent work queue, per-Agent identity, runtime drivers, storage, and observability based on public source code, discussing the value and limitations of enterprise deployment
- Volcano has many features, so why is it still hard to tune in enterprises?
Discussing the business prerequisites for Volcano scheduling and rescheduling adoption, from resource views, task grading, cross-department preemption consensus, and pre-deployment instrumentation
- Extending the Kubernetes Scheduler: From a GPU Placement Requirement to a Plugin
Using GPU node pool placement as an example, this explains the Scheduling Framework extension points, Profiles, the boundaries between Extender and standalone schedulers, and validation and rollback methods
- Contiv, OVS, and Cilium in a Serial-Chained Network: Why kube-proxy May Not Receive Packets
Explains VLAN networking, Service translation, and kube-proxy's data path boundaries based on CNI configuration, OVS ports and flow tables, Cilium runtime status, and actual packet captures from an anonymized test cluster
- Large-Scale Kubernetes Scheduler Optimization: From Queue Backlog to Parallel Scheduling Architecture
Drawing on Kubernetes source code and public practices from Alibaba and ByteDance, explains serial decision-making and node parallelism, plugin and retry optimization, multi-scheduler sharding, concurrency conflicts, and results validation
- Large-Scale Kubernetes Monitoring Solutions: How to Choose Between Prometheus, VictoriaMetrics, Thanos, and Mimir
Discusses large-scale Kubernetes monitoring from the perspectives of series cardinality, scrape discovery, write and query isolation, alerting, storage, and migration, including hands-on deployment validation of the VictoriaMetrics K8s Stack
- vLLM Sleep Single-GPU Dual-Model Field Test: Recovery Time, GPU Memory, and DRA Design
Compare model process restart vs Level 1/2 sleep recovery on a single L20, verify short-term throughput after recovery, and analyze Kubernetes DRA sharing boundaries.
- Jev Weekly Review
Continuously tracking versions, independent evaluations, community weights, and Agent applications of Jev and the System One decision model, preserving results and judgments by week
- RBG with Live Traffic: When Replicas Recover, Do Requests Recover?
Using Qwen3.8-27B-FP8 with L20, fixed AIBrix routing, to connect RBG scaling, rolling updates, failure recovery, and client-side TTFT and TPOT evidence.
2026-09
- MiMo-V2.6-Pro-RL First Test: vLLM Deployment and Performance Measurement on 8x H20-3e
Model architecture of MiMo-V2.6-Pro-RL, 8-card H20-3e vLLM deployment, text and image acceptance, fixed-length stress testing, and operational boundaries
- Harbor Agent Evaluation Framework Overview: From Sandbox Tasks, Verifier to Large-Scale Rollout
Systematically introduces how Harbor unifies tasks, Agents, models, isolated environments, verifiers, and trajectories, analyzes its boundaries with Agent Harness, Inspect AI, SWE-bench, LangGraph, and Langfuse, and provides a Kubernetes production deployment solution
- MiMo-V2.6-Flash-RL Day 0: 4-Card and 8-Card H20-3e Deployment Field Test
MiMo-V2.6-Flash-RL model architecture, SGLang 8-card and vLLM 4-card deployment profiles, fixed-length stress testing, long-context boundaries, multimodal validation, and production deployment recommendations
- Qwen-Image-2.1: SGLang vs vLLM-Omni Measured on a Single L20
Deploy Qwen-Image-2.1 on a single NVIDIA L20 in Kubernetes, verifying text rendering, transparent PNGs, and SGLang vs vLLM-Omni throughput, latency, GPU memory, and batch generation workbench
- Jev Technical Review: A System One Decision Model That Doesn't Generate Text
An overview of TypeSafe AI Jev's interface, confidence scores, use cases, community controversy, production architecture, and evaluation methods, explaining its boundaries with LLMs, traditional classifiers, and rule systems
- Koordlet and Runtime Hook: Node Resource Isolation Principles
Understanding how Koordlet implements CPU, memory, cache, I/O and network QoS from the control loop, container lifecycle and Linux kernel mechanisms
- Koordinator and Online-Offline Workload Colocation: From Resource Reclamation to Production Deployment
Understanding Koordinator through resource accounting, QoS, interference governance, and large-scale community practice, and how to safely advance Kubernetes online-offline workload colocation
- Koordinator Webhook Multi-Replica Certificate Race in Practice: From 60 HTTP 409 Responses per Second to Shared CA Convergence
A production cluster Koordinator Webhook certificate race — its diagnosis, fix, and verification, including sanitized real Grafana metrics, shared Secret configuration, certificate checks, and production acceptance methods
- Kube-apiserver Load Balancing in Practice: HTTP/2, TLS Termination, and L4/L7 Selection
Starting from connection reuse, TLS identity boundaries, rebalancing during scale changes, and policy selection, compare L4 and L7 load balancing approaches for kube-apiserver along with production validation methods
- Optimizing Kubernetes Clusters at 10,000 Nodes: Control Plane, etcd, Scheduling, and Networking
Drawing on public case studies from Alibaba, ByteDance, and overseas sources, this article breaks down control plane, etcd, scheduling, networking, operational risk control, and scale validation methods for Kubernetes at 10,000 nodes
- Multi-Node Multi-GPU Training Frameworks and Fault Recovery: From DDP, FSDP to DeepSpeed, Megatron, and Ray
Compare the parallelism capabilities, checkpoint and elasticity boundaries of mainstream multi-node multi-GPU training frameworks, and provide a Kubernetes recovery architecture after node failure, RPO/RTO, drill methods, and a production checklist
- OpenTelemetry × Grafana in Practice: Observing the Kubernetes Control Plane and Cluster State
Use the OpenTelemetry Collector to aggregate Kubernetes control plane, DNS, and object metrics, integrate with Prometheus, Tempo, and Grafana, and test metric cardinality governance and Span troubleshooting in practice
- Getting Started with OpenTelemetry and Kubernetes: From Trace and Span to Collector
Explaining OpenTelemetry's Trace, Span, Metric, Log, Context, Resource, OTLP, and Collector using a single Kubernetes request, plus a five-minute experiment that requires no observability backend
- OpenTelemetry in Kubernetes: From OTLP to Prometheus, Langfuse, and Log Pipelines
Deploy an OpenTelemetry Collector Gateway on a Kubernetes 1.30 cluster, verify Trace, Metric, Kubernetes metadata, Prometheus ServiceMonitor, and Langfuse OTLP ingestion with FastAPI, and provide production deployment recommendations
- LangChain, LangGraph, and Langfuse in Kubernetes: From Components and Orchestration to Tracing
Use a runnable demo to explain the division of responsibilities among LangChain, LangGraph, and Langfuse, and verify conditional routing, tool calls, slow requests, and error tracing in Kubernetes
- A Survey of Agent Evaluation Methods: How to Fairly Compare Pi, OpenClaw, DSH, and Hermes Agent
From task success, tool trajectories, failure recovery, security governance, cost, and human intervention, establish a reproducible Agent evaluation and scoring system, and explain how Pi, OpenClaw, DeepSeek Harness, and Hermes Agent should be compared
- Running Kubernetes on KubeVirt: Architectural Boundaries, Production Design, and AI Scenario Trade-offs
Analyzes the two-layer control plane, scheduling, failure domains, networking, storage, lifecycle, observability, and GPU scenarios of hosting tenant Kubernetes clusters on Kubernetes with KubeVirt, and provides a production reference architecture and acceptance checklist
- Langfuse and LangGraph Technical Overview: Agent Orchestration, Observability, and Evaluation Loop
A systematic introduction to LangGraph's state graphs, persistence, and human approval, as well as Langfuse's Trace, Prompt, Dataset, Evaluation, and Kubernetes self-hosted architecture
- Grok Bot Technical Overview: Persistent Cloud Computers, Multi-Agent Collaboration, and Enterprise Governance
A systematic introduction to the differences between Grok Bot, Grok, @grok, and the xAI API, with analysis of its persistent cloud computer, Skills, Routines, multi-Bot collaboration, approvals, security boundaries, and Kubernetes enterprise integration
- TokenHub Technical Overview: Unified Model API, Aggregation Marketplace, and Enterprise Access
Introduces TokenHub.com's OpenAI, Anthropic, and Gemini compatible interfaces, multi-model catalog, unified billing, Agent tool integration, and the security and observability boundaries for Kubernetes production use
- OpenRouter Technical Overview: Unified Model API, Provider Routing, and Enterprise Access
Introduces OpenRouter's product positioning, request path, model and Provider routing, Fallback, Prompt Cache, costs, privacy, observability, and Kubernetes access methods
- HarnessRouter Overview: From Model Routing to Agent Harness Infrastructure
Explains HarnessRouter, UHP, Cloud and Community Edition, describing the Agent Harness unified interface, task lifecycle, security boundaries, cost, and its relationship with DSH and LLM Gateway
- Survey of LLM API Relays and LLM Gateways
A systematic review of model aggregation platforms, self-hosted LLM Gateways, enterprise AI Gateways, inference routing and semantic routing—covering principles, representative products, security risks, and selection methods
- Agent Memory Technical Overview: How Agents Remember, Update, and Forget
A systematic introduction to agent short-term and long-term memory, semantic and episodic memory, write and retrieval, temporal updates, forgetting and deletion, major projects, evaluation methods, and Kubernetes production architecture
- Agent Harness Technical Overview: Beyond the Model, How Agents Continuously Complete Real-World Tasks
From Agent Loop, context, tool interfaces, state recovery, sandbox, permissions, verification, and observability, this systematically introduces the principles of Agent Harness, mainstream implementations, and Kubernetes production architecture
- Qwen3.8-2.4T-A95B-FP8 Day 0: 32×H20-3e Dual-Engine Deployment and Load Testing
SGLang and vLLM deployment, functional validation, throughput/latency, cross-node communication, and long-context testing of the Qwen3.8 2.4T MoE model on four nodes with 32 H20-3e GPUs
- DeepSeek-V4.1-Flash Day 0: 8×H20-3e Deployment and Dual-Engine Stress Test
DeepSeek-V4.1-Flash eight-card H20-3e deployment configuration, SGLang and vLLM throughput and latency measurements, anomaly analysis, and deployment recommendations
- CubeSandbox Agent Adapter v0.5: Strong Audit, Trusted Tasks, and Five-Client Field Testing
Understand the audit boundaries and deployment practices of CubeSandbox Agent Adapter v0.5 through execution intent persistence, failure lockdown, and manual reconciliation
- What AIBrix Routing Actually Optimizes: From Cache Hit to Tail Latency
On two L20 replicas, control cold/hot caches and hot prefixes, compare random, least-request, and prefix-cache, and explain the benefits and costs using routing decisions, real KV hits, queues, and client latency.
- AIBrix in Production: Qwen3.8-27B Capacity, Drain, and Overload Protection on L20
Using per-request logs and a light-themed Grafana dashboard to review cold-start scaling, streaming drain, tenant admission, and cache routing, distinguishing actually verified results from production capabilities still pending.
- Karmada and Virtual Kubelet: Architecture, Scheduling, and Production Selection
Compare Karmada multi-cluster orchestration with Virtual Kubelet virtual nodes, starting from application object ownership; analyze replicas, capacity, networking, storage, failure recovery, and GPU scenarios, with configuration examples and observability methods
- AIBrix Production Practice: Using DeepSeek V4 Flash to Connect Load Testing, Dashboards, and Recovery Validation
Reuse AIBrix on a real H20 GPU cluster, deploy a two-replica DeepSeek V4 Flash, calibrate TTFT, TPOT, cache and GPU metrics, and form verifiable operational evidence through tiered load testing and replica recovery drills.
- Building Stability for Hundreds of Kubernetes Clusters
Starting from configuration differences, batch changes, and failure recovery in multi-cluster operations, sharing design trade-offs and implementation methods for stability building
- APF Isolation in Practice: Why Zero-Seat Reject Still Lets Requests Through
Explains APF principles from request classification, concurrent seats, and fair queuing, then uses Kubernetes 1.30.4 four-phase testing, Grafana screenshots, and source code to explain zero-seat rejection and recovery
- Kubernetes Flow Control Guide: APF, Workload Admission, and Inference Service Rate Limiting
Illustrated guide to API Priority and Fairness, client-side rate limiting, event rate limiting, resource quotas, GPU task queues, and model gateway rate limiting, with v1 configuration and observability examples
- KV Cache Overview: From Attention Principles to Kubernetes Inference Architecture
Explains KV Cache computation principles, GPU memory capacity, prefix reuse, tiered caching and P/D transfer, as well as routing, storage, topology and scaling practices on Kubernetes
- MiniMax-M3 H20 Deployment Failure and Fix Record
Record of image dependencies, model startup, client path failures, and abnormal input handling during MiniMax-M3 testing.
- MiniMax-M3 Real-World Test on Eight H20 GPUs: SGLang vs. vLLM
MiniMax-M3 BF16 TP8 dual-engine functionality, text stress test, multimodal and deployment verification.
- MiniMax H3 H20-3e Field Test: Full Audio-Video Generation, Dual Engine, and Persistence Acceptance
Using the same model snapshot on four H20-3e GPUs to validate SGLang Diffusion and vLLM-Omni, recording generation, concurrency, media checks, and raw artifact retention
- CubeSandbox Agent Adapter v0.3 Field Test: From Multi-Agent Bridge to Recoverable Execution Control Plane
Based on the v0.3.0 release tag and multi-architecture images, verifies OpenClaw, DSH, Hermes, and Codex integration, as well as persistent leases, asynchronous jobs, PTY, Checkpoint, Redis HA, multi-tenant authentication, and migration risks
- Ling-3.0-flash BF16 Single-Node 4×H20 Field Test: Choosing Between SGLang, vLLM, and MTP
Deployed Ling-3.0-flash BF16 on a single node with 4×141GB H20, covering SGLang and vLLM deployment, functional acceptance, 256K long-context validation, and single-variable A/B testing of speculative decoding.
- Test Report
For independent public release, this report intentionally omits cluster names, internal addresses, image registry names, jump-host details, credentials, and unrelated workloads.
- Jailer and Security Baseline
Launcher Pods are suitable for admission validation, but are essentially privileged host management code. Therefore, the security experiment also launched a native microVM using a version-matched Firecracker jailer binary, and checked the h
- Observability and Resource Accounting
Kubernetes container metrics cannot cover the full cost of Kata/Firecracker sandboxes. Capacity decisions need to align at least the following three layers of data:
- Kubernetes Launcher Testing
This pattern schedules a privileged Pod with Firecracker as its main process, suitable for hardware admission and lifecycle experiments on isolated nodes. It is not a CRI Runtime, nor is it a public sandbox service that can be safely expose
- Kata + Firecracker RuntimeClass Testing
This guide converts an ordinary Kubernetes Pod into a Kata sandbox hosted by Firecracker. It reproduces an already-validated experimental chain, while keeping node names, image registries, jump hosts, and cluster-specific CNI control inform
- Firecracker Experiment Results and Operations Manual
The designated experiment subset, namely experiments 1, 2, 3, 5, and 7, was executed on dedicated Workers. Unless explicitly stated as repeated measurements, the results below are smoke tests and compatibility observations.
- Host Deployment and Native Smoke Testing
This guide first downloads artifacts on a networked workstation, then transfers them to an isolated Linux node. The commands in this document deliberately do not depend on any specific jump host, cluster name, image registry, or code reposi
- How to choose the right technology layer
Firecracker and CubeSandbox are not direct substitutes at the same layer. Firecracker is a VMM; CubeSandbox is an agent-oriented sandbox control plane that provides scheduling, images, snapshots, networking, policy, APIs, and SDKs around KV
- Agent Workloads on Kata + Firecracker
This experiment runs OpenClaw, DSH, Hermes, and Codex as ordinary Kubernetes Pods, with the runtime selected via runtimeClassName: kata-fc-lab. Each Pod therefore has a Kata/Firecracker microVM isolation boundary around it. The Agent's Cube
- What Real Value Does Kubernetes 1.37 Deliver for AI/LLMs: An Item-by-Item Comparison with 1.35
From Gang Scheduling, DRA, GPU scale-to-zero, NUMA and observability, this analysis examines the real benefits and adoption boundaries of Kubernetes 1.37 versus 1.35 for training and inference platforms.
- Hy4-preview BF16 on Dual-Node H20: SGLang vs vLLM — How to Choose
Deployed Hy4-preview BF16 on two 8×H20 nodes with SGLang TP16 and vLLM TP8×PP2, covering functional acceptance, RDMA verification, 130K stress testing, and Needle/Agent correctness tests.
- DeepSeek-V4-Flash-Vision-Exp Day 0: 4×H20 Multimodal Deployment and Load Testing
Running DeepSeek-V4-Flash-Vision-Exp on a single node with 4×141GB H20 using SGLang Preview, documenting NVMe warm-up, 13m52s cold start, OpenWebUI image chat, and 79-round multimodal load testing.
2026-08
- OpenClaw 2.0 Hands-On: Architecture, Features, Performance, and Migration Risk Compared with 1.x
Hands-on comparison based on isolated installs of OpenClaw 2026.7.1 and 2026.8.1, covering Gateway, Control UI, Workboard, headless Agent, and doctor migration
- GLM-5.3 Day-1 Benchmark: SGLang vs. vLLM Baseline on 8×H20
Baseline benchmark of GLM-5.3 native FP8 with SGLang/vLLM on a single node of 8×141GB H20, comparing output throughput, TTFT, TPOT, and end-to-end latency.
- Enhancing OpenClaw and DSH with CubeSandbox: Enterprise Secure Execution Surface in Practice
Using real OpenClaw and DeepSeek Harness sessions, sink Agent code execution into CubeSandbox MicroVMs via Skills and controlled plugins that do not require Skills, and actually test policies, lifecycle, and desensitized auditing
- CubeSandbox Kubernetes in Practice: From Node Preflight to the First MicroVM Sandbox
Deploy CubeSandbox v0.7.0 in an existing Kubernetes cluster, completing KVM, XFS, Helm, node registration, template building, and sandbox lifecycle acceptance
- CubeSandbox Kubernetes Deployment Prerequisites and Production Assessment
Verify CubeSandbox's 60ms cold start, KVM/PVM, XFS, eBPF, Helm, node privileges, and production readiness boundaries
- GLM-5.3-Flash Day 1 Hands-on: 4×H20 Deployment, 1M Context, and SGLang/vLLM Comparison
Deploy GLM-5.3-Flash on 4×H20, and test SGLang and vLLM for functionality, throughput, long context, Prefix Cache, and OpenWebUI integration.
- Qwen3.8-Flash-Next Day 0 Hands-On: Running Native 262K on 4×H20
Using the SGLang Day-0 official image and BF16/FP8 weights, validate the Qwen4 preview architecture, precision and capacity, 262K long context, PLE, MTP, long/short workload colocation, and framework support boundaries on 4×H20
- How to Avoid Getting Cross-NUMA Fragmented GPUs for a 4-GPU Task on an 8-GPU Node
From NVIDIA Device Plugin, Topology Manager, Volcano, Koordinator, HAMi to Kubernetes DRA: evaluating the real capabilities and production adoption paths of GPU device topology-aware scheduling
- From W&B Local to SwanLab: Two Years of Team Experiment Tracking Practice and Tool Selection
Starting from a W&B Local instance that ran for two years, combined with real SFT testing on SwanLab, this article explains why experiment tracking is hard to productionize, and how teams should evaluate and accept such tools
- How Much Faster Does RDMA Really Make Distributed Training: DeepSeek V4 Dual-Node 16-GPU Field Test
Using NCCL AllReduce/All-to-All microbenchmarks, DeepSeek V4 Flash MoE SFT positive/negative comparisons, and six SwanLab runs to explain which parallelization strategies actually benefit from RDMA
- Kubernetes Domain SFT: Community Cases, Datasets, and Executable Evaluation
Analyze community practices such as KubeFix, K8s Distill, KubeBench, and ITBench, and explain how to prepare data, train models, and complete trustworthy evaluation for Kubernetes documentation Q&A, Manifest generation, and troubleshooting
- Getting Started with LLM SFT: Loss, LoRA, Batch, and Parallelism Explained in One Go
For readers encountering LLM training for the first time, this guide uses one complete example to explain SFT, Token, Loss, LoRA, QLoRA, Batch, Epoch, Checkpoint, Dense, MoE, DP, TP, PP, EP, ZeRO, and evaluation
- SGLang v0.5.16 / v0.5.17 / v0.5.18 Single-Card L20 Benchmarks: Is Upgrading Really Faster?
Using official images on the same L20 to benchmark SGLang v0.5.16, v0.5.17, and v0.5.18, and analyzing throughput, tail latency, startup, and capacity changes against official Release notes
- SwanLab Self-Hosting: From Kubernetes Deployment to Real SFT Metrics
Deploy SwanLab on Kubernetes, integrate ms-swift, distinguish experiment tracking from infrastructure monitoring, and validate the metrics pipeline and overfitting inflection points with real SFT runs on Qwen3.5, Qwen3.6 MoE, and DeepSeek V4
- Large Model SFT Training in Practice: From Single-GPU LoRA to DeepSeek V4
Use Qwen3.5-4B to complete the LoRA, SwanLab, and blind test loop, then use 8 to 16 H20 GPUs to test DeepSeek V4 Flash's Expert Parallel, cross-node GDRDMA, and overfitting inflection point
- Deploying MiniMax-Music3 with SGLang-Omni: From a Single Idea to a Complete Song
Deploy MiniMax-Music3 on a single GPU in Kubernetes, and connect an OpenAI-compatible LLM to automatically generate song titles, structured lyrics, and production descriptions
- Qwen3.8-27B Day 0: vLLM and SGLang Test Record
Records Qwen3.8-27B official FP8 artifacts, vLLM and SGLang images, single-card L20 Kubernetes testing, OpenWebUI integration, and subsequent MTP and long-context A/B
- Looks Like an NCCL Failure, but It Was Host Memory OOM
A sanitized troubleshooting record of ncclCommInitRank unhandled cuda error: tracing from GPU, PCIe, and RDMA step by step to cgroup OOM and NVIDIA locked-page failure
- From Docker to Kubernetes: DeepSeek Harness, Built-in Chromium, and DSH Plugin in Practice
Packaging DeepSeek Harness, a browser desktop, and a custom DSH Plugin into a single OCI image, documenting Kubernetes StatefulSet, PVC, NetworkPolicy, Cilium probes, and Tailscale remote access boundaries
- DeepSeek Harness GitHub Repository Deep Dive: Plugin Architecture, Agent Loop, and Persistence
A systematic breakdown of DeepSeek Harness from source directories, the Cordis plugin tree, Profiles and Bundles, Agent turns, event-sourced sessions, and capability seams
- DeepSeek Harness Docker, Compose, and Helm Deployment in Practice
Build multi-architecture Docker images for DeepSeek Harness and deploy securely with Docker Compose and Kubernetes StatefulSet, resolving EROFS, persistence, native module, and web exposure issues
- GLM-5.2 FP8 on H20: vLLM, SGLang, and P/D RDMA Field Measurements
Records the vLLM and SGLang baselines for GLM-5.2 FP8 on a single node with TP=8, as well as the KV transfer and end-to-end performance comparison between TCP and RDMA under two-node P/D separation
- Understanding the Enterprise Agent Technology Stack through WorkBuddy
From Tencent WorkBuddy's Agent, Runtime, Session, Skill, MCP, and evaluation capabilities, deconstruct the complete enterprise Agent technology stack from model to sandbox, identity, observability, and delivery
- Large Model Weight Distribution and Loading Acceleration: Community and Commercial Solution Selection
From object storage, parallel file systems, P2P, node caching to GPU Loader, break down the large model weight delivery chain and provide actionable selection and testing routes
- DeepSeek V4 Flash Distributed KV Cache: From P/D Direct Transfer to Global Cache Pool
Distinguishes P/D KV direct transfer, KV Offload, Prefix-aware routing, and cross-engine shared caching, compares Mooncake, AIBrix, LMCache/llm-d, and Dynamo KVBM, and provides a progressive validation roadmap for DeepSeek V4 Flash
- From Half an Hour to Five Minutes: Full-Pipeline Cold Start Optimization for Large Models
Starting from the real problem of DeepSeek-V4-Pro rolling restarts taking nearly half an hour, this article breaks down the startup critical path to show how to optimize H20 node cache restarts to the five-minute scale, along with the engineering trade-offs of model caching, weight loading, JIT, CUDA Graph, and hot recovery
- How Enterprise Internal AI Applications Can Be Quickly Published and Shared
Design of AI application building, pilot testing, approval, publishing, permissions, and runtime for non-R&D users such as business, legal, and operations teams
- Lessons from Building a GPU Development Platform in the LLM Era
The real evolution from JupyterHub/KubeSpawner, code-server, and group-level eight-GPU sharing to Ceph RBD, CephFS, Workspace Operator, and KubeVirt root disks
- OpenClaw as an Enterprise Agent Platform Foundation: Strengths, Weaknesses, and Customization Boundaries
Analyzes OpenClaw's reusable capabilities, enterprise platform gaps, security risks, recommended architecture, and adoption decisions
- The State, Implementation Principles, and Trends of AI Agents in 2026
Product landscape, implementation principles, development frameworks, risks, and evolution trends for mainstream coding, browser, and enterprise agents
- DeepSeek-V4-Flash-0731 Deployment and Load Testing on H20
Records resource conditions, vLLM startup flow, performance baseline, same-Pod PD separation testing, and OpenWebUI integration for DeepSeek-V4-Flash-0731 on a single-node eight-card H20
- Deploying ComfyUI on Kubernetes: Offline Images, CephFS Models, and Cross-Cluster Ingress
Using NVIDIA GPUs, read-only CephFS, ComfyUI extra_model_paths, Init Container model aliases, and two-tier Ingress to serve a MiniMax-H3 workflow page in a network-restricted Kubernetes environment
- AIBrix Real GPU Field Test: From Two-Machine Inference to Eight-Node Fragmented GPUs
On a production Kubernetes cluster using NVIDIA L20, AIBrix v0.7.0, RayClusterFleet, StormService, and vLLM, verify two-machine model parallelism, NIXL P/D separation, eight-node Qwen3-235B FP8, and DeepSeek 70B four-node single-GPU, two-node dual-GPU, and single-node four-GPU topologies
- SGLang Model Gateway CPU Hands-On
Deploy SGLang Router and two OpenAI-Compatible Mock Workers on a GPU-less Kubernetes 1.30 cluster; test dynamic discovery, round robin, removal and recovery, and Prometheus metrics
- RBG Multi-Role Inference Orchestration: From CPU Control Plane to Production GPU Validation
Deploy RoleBasedGroup on a Kubernetes 1.30 cluster, validate role dependencies, service discovery, scaling, self-healing, two-node Ray inference, and NIXL P/D disaggregation, and compare RBG with AIBrix using the same images and models
- Higress AI Gateway: Architecture, Installation, and AIBrix Integration in Practice
Install Higress in isolation within an existing Kubernetes cluster, understand Controller, Gateway, Console, AI Proxy and observability plugins, and design same-cluster and cross-cluster paths between Higress and AIBrix
- Deploying AIBrix on an Existing Kubernetes Cluster: Routing, P/D, Autoscaling, and Observability Field Test
Install AIBrix v0.7.0 on a Kubernetes 1.30 cluster, use CPU mock to validate model routing, P/D, StormService, autoscaling, Prometheus metrics, and Higress two-layer gateway chaining
- GPU Resource Bank and Tidal Inference Platform Practice Blueprint
Use Kueue or Volcano to implement GPU quota borrowing between business groups, combine KServe, AIBrix, KEDA and vLLM to build real-time and scheduled elasticity, and establish an observability closed loop from hardware health to per-token cost
- KubeVirt Single-Node Desktop in Practice: Local Disks, CDI, and Browser noVNC
In a Kubernetes cluster without Ceph, confine KubeVirt VMs to a single node, use local disks to preserve the complete system environment, and access the desktop from a browser through a restricted noVNC gateway
- Building Persistent GPU Notebooks with KubeVirt and Ceph RBD
Provide each user with a persistent Linux workstation with a dedicated RBD root disk, covering host preparation, KubeVirt/CDI, GPU passthrough, snapshots, failure recovery, and production acceptance
- Spot GPU and Checkpoint Recovery Experiments
Measure the real cost-benefit of preemption notifications, checkpoints, requeueing, and training recovery
- Performance Inflection Point of Prefill/Decode Separation
Use dual-pool capacity, KV transfer, and real workloads to determine whether P/D separation is worthwhile
- From Ollama to Kubernetes Production Inference
Migrating local model validation into load-testable, canary-deployable, observable vLLM/KServe services
- Model GPU Memory and Concurrency Capacity Calculator
Estimate model weights, KV Cache, runtime overhead, maximum concurrency, and per-token cost
- Distributing a 70B Model to 100 Nodes
Designing Registry, object storage, P2P, and node cache experiments for TB-scale models and 100-node inference pools
- Why GPU Utilization Is Low
Identify GPU idle time from data, CPU, communication, kernel, batching, and platform metrics
- Kueue vs. Volcano Comparison Experiment
Validate admission queues, Gang, fair sharing, preemption, and topology capabilities with identical training workloads
- Kubernetes or Slurm
Choosing an AI scheduling platform based on training, inference, topology, queues, ecosystem, and operational boundaries
- vLLM, SGLang, and TensorRT-LLM Same-Machine Benchmark
Fix model, hardware, and load to fairly compare mainstream LLM inference engines
- AI Cluster Incident Review Methodology
Review training and inference incidents using timelines, fault domains, recovery evidence, and action items
- GPUs Are Idle, Why Is the Pod Still Pending?
Locate GPU Pending layer by layer: queue admission, scheduling, topology, devices, storage, and elasticity
- GPU Node Failure Atlas
Locate GPU failures using XID, ECC, NVLink, device loss, NCCL, RDMA, and kubelet evidence
- Kubernetes Practices for Domestic GPU/NPU
Using platform contracts to integrate Ascend and other domestic accelerators, managing differences in drivers, resource names, images, scheduling, and observability
- GPU Cloud Resource Selection: Domestic and International
Evaluate cloud GPUs by inventory, topology, network, storage, Spot, egress, and software stack
- Offline Deployment of AI/LLM Platforms
Synchronize images, charts, models, drivers, packages, and security metadata in environments without public network access
- Agent Sandbox Attack and Defense Experiment
Validate Agent isolation boundaries with file, credential, network, resource exhaustion, and persistence tests
- Kubernetes Offerings from Major Cloud Providers in China and Abroad
Comparing the managed boundaries and AI/GPU capabilities of Alibaba Cloud ACK, Tencent Cloud TKE, Huawei Cloud CCE, AWS EKS, Google GKE, and Azure AKS
- Open Source Kubernetes Cluster Management Tools and Approaches
Layered selection from kubectl, Web UI and GitOps to Rancher, Cluster API, Gardener, Karmada and OCM
- AI/LLM Cluster Component Inventory
Lists the Kubernetes cluster components needed for minimal closed-loop, training, big data, Ray, online inference, and advanced inference scenarios, along with the rationale for introducing them and acceptance criteria
- Ray's Role in Large Model Training and Inference
The boundaries of Ray Core, Data, Train, Tune, Serve, Serve LLM, and KubeRay in large model data processing, training, post-training, and online inference
- LLM Serving and AI Microservice Frameworks
Comparing the layers, composition patterns, and selection boundaries of vLLM, KServe, AIBrix, Ray Serve, BentoML, NVIDIA NIM, and application orchestration frameworks
- Big Data on Kubernetes
Spark, Flink, Kafka, Trino, Lakehouse, object storage, Operators, queue scheduling, and integration with LLM training and RAG
- GPU Notebook Platform and Storage Selection in the Large Model Era
From JupyterHub, Kubeflow and managed Workbench to full-GPU, MIG, shared GPU, user Home, object storage and local cache production selection
- Agent Sandbox Selection and Architecture Analysis
A systematic selection approach from threat models, lifecycle control planes, gVisor, Kata, microVMs to managed sandboxes
- Running and Testing Large Models Locally
Use Ollama, llama.cpp, LM Studio, LocalAI, MLX-LM, and vLLM/SGLang to quickly validate models, APIs, RAG, and Agents
- Kubernetes Multi-Cluster and Large-Scale GPU
From Federation evolution to MultiKueue, Karmada, OCM, MCS and Liqo, combined with large-scale GPU training and inference design
- GPU Workloads and Node Autoscaling
Coordinating HPA, KEDA, Kueue, Cluster Autoscaler, and Karpenter to handle GPU cold starts, fragmentation, and interruptions
- AI/LLM Kubernetes Glossary
Quick reference for common terms in GPU, big data, scheduling, training, inference, networking, Agent sandboxes, model artifacts, and reliability
- RAG Data Plane and Vector Search Infrastructure
Designing document ingestion, Embedding, vector databases, Reranker, caching, index publishing, and disaster recovery on Kubernetes
- LLM Inference Optimization: Batch, KV Cache, Quantization, and Parallelism
Understand continuous batching, prefix cache, quantization, speculative decoding, and multiple parallelism strategies with verifiable methods
- AI Gateway, Inference Routing, and Traffic Governance
Distinguish API Gateway, Gateway API Inference Extension, and model request scheduling; design authentication, quotas, cache awareness, and release strategies
- LLM Inference Engine Selection
Compare the capabilities, boundaries, and Kubernetes integration approaches of engines such as vLLM, SGLang, TensorRT-LLM, Triton, and llama.cpp
- Multi-Machine and Disaggregated LLM Inference
Design multi-machine model replicas, LeaderWorkerSet, Prefill/Decode disaggregation and KV transfer, and compare AIBrix, llm-d, KServe, Dynamo, Ray Serve and the vLLM Production Stack
- Ten Years of AI on Kubernetes
From GPU Device Plugin, Training Operators, and MLOps to DRA, Inference Gateway, and disaggregated inference
- AI/LLM on Kubernetes Reference Architecture
Five reference architectures ranging from small GPU platforms, multi-tenant training, online inference, disaggregated inference to Agent sandboxes
- Experiment: From GPU Node to Observable Inference Service
Complete node inspection, device smoke test, model deployment, metric verification, and failure drill on an existing GPU Kubernetes cluster.
- How Kubernetes Carries AI Workloads
Understanding the complete execution path of AI workloads in Kubernetes from controllers, scheduling, devices, networking, and storage
- Model Formats, Artifact Supply Chain, and Distribution
Managing model formats, OCI artifacts, cross-region replication, P2P distribution, node caching, streaming loading, signing, and cold start
- GPU Node Software Stack, Initialization, and Acceptance
Build maintainable GPU nodes from firmware, kernel, drivers, container runtime, to Kubernetes device integration
- AI Kubernetes Cluster Architecture Design
Plan training and inference clusters from failure domains, node pools, control plane, network, and storage
- NVIDIA, AMD, Intel, TPU, and AI ASIC
Integration methods, differences, and selection boundaries for multi-vendor GPUs, TPUs, Gaudi, and cloud AI accelerators on Kubernetes
- Device Plugin, CDI, and DRA
Understanding the responsibilities, APIs, and migration paths of Kubernetes device discovery, container injection, and dynamic resource allocation
- AI Platform Security and Governance
Identity, tenant isolation, Pod security, image and model supply chain, and compliance auditing
- Reliability, Checkpoint, and Failure Recovery
Failure models, RPO, RTO, graceful exit, Spot, and recovery drills for AI jobs
- Queues, Fair Sharing, and Multi-Tenancy
Kueue queues, ResourceFlavor, Cohort, priority, preemption, and tenant governance
- Platform Operations, Upgrades, and Multi-Cluster
Version matrix, progressive upgrades, CRDs, backup, disaster recovery, and incident response
- GPU, Training, and Inference Observability
Metrics and tracing from user requests and training jobs to Pods, GPUs, network, and storage
- Edge AI, K3s, and Cloud-Edge Collaboration
Weak-network autonomy, edge device access, model OTA, and cloud-edge management
- AI Data, Storage, and Caching
Object storage, shared files, local NVMe, data loading, and multi-level cache design
- GPU Cost, Capacity Planning, and FinOps
Cost attribution, unit economics, capacity forecasting, and elasticity strategies for AI platforms
- Performance Benchmarking, Stress Testing, and Regression
Layered benchmarks and release gates for GPU, network, storage, training, and inference
- AI Agent, Sandbox, and Tool Execution
Runtime isolation, networking, identity, tool permissions, and audit design for Agent workloads
- K3s Upgrade and DRA Pre-check Report
> Target host: 192.168.1.200; host log timestamps are in CST (UTC+8). This report records environment checks, version planning, multi-stage backups, minor-version-by-minor-version upgrades, fault handling, final verification, and the Kubern
- RDMA and AI High-Speed Networking
InfiniBand, RoCE, GPUDirect, NCCL, Kubernetes integration, and layered troubleshooting
- MLOps and Platform Engineering
Pipelines, experiments, model registry, GitOps, and internal platform APIs
- LLM Inference Platform
Control plane, runtime, routing, scaling, and capacity design for online large model services
- GPU and Heterogeneous Resource Scheduling
Full-GPU, MIG, sharing, topology, affinity, and resource fragmentation governance
- Distributed Training Platform
Training controllers, Gang Scheduling, collective communication, fault tolerance, and job lifecycle
- AI on Kubernetes Implementation Roadmap
From current-state assessment to 30-, 60-, and 90-day build plans and long-term capability evolution