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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3517 posts
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PostgreSQL Index Tuning Patterns 2026
PostgreSQL Index Tuning Patterns 2026 - A Practical Application Guide Based on 2026 Standards
2026-03-04 · 25 min read #database#postgresql#2026-03OpenTelemetry Observability Blueprint: Integrating Metrics, Logs, and Traces
A practical document covering the OpenTelemetry Observability Blueprint for integrating Metrics, Logs, and Traces, with Why/How/When, comparison tables, troubleshooting, production code, and quizzes.
2026-03-04 · 15 min read #observability#practical-guide#productionAI Platform Model Registry and A/B Deployment Pipeline Design 2026
AI platform model registry and A/B deployment pipeline design. MLflow Model Registry, model version management, canary/A/B deployment strategies, KServe InferenceService, traffic splitting, and rollback.
2026-03-04 · 37 min read #ai-platform#2026-03Building Continuous Profiling for Kubernetes Applications with Pyroscope
A hands-on guide to Continuous Profiling in Kubernetes using Grafana Pyroscope. Covers eBPF-based profiling, Flame Graph analysis, CPU/memory bottleneck diagnosis, and Grafana dashboard integration.
2026-03-03 · 7 min read #observability#pyroscope#profiling#grafana#kubernetesOpenTelemetry Collector Pipeline Design Practical Guide — Receiver, Processor, Exporter
Covers everything from OpenTelemetry Collector architecture to pipeline design, Receiver/Processor/Exporter configuration, and production deployment patterns with practical examples.
2026-03-03 · 15 min read #observability#opentelemetry#telemetry#monitoring#2026-03Complete LLM Quantization Comparison — GPTQ vs AWQ vs GGUF
A comprehensive guide to LLM Quantization — from quantization fundamentals to comparing GPTQ, AWQ, and GGUF methods, vLLM/llama.cpp integration, and practical benchmarks.
2026-03-03 · 6 min read #llm#quantization#gptq#awq#ggufPrometheus PromQL Mastery Guide
Master PromQL data types, selectors, key functions (rate/increase/histogramquantile), alerting rules, and dashboard queries through practical examples.
2026-03-03 · 5 min read #observability#prometheus#promql#monitoring#2026-03eBPF-Based Kubernetes Observability Guide: From Cilium Hubble to Tetragon
Hands-on guide to eBPF-based Kubernetes observability tools. Covers network flow observation with Cilium Hubble, security event detection with Tetragon, and writing custom eBPF programs.
2026-03-03 · 7 min read #observability#ebpf#cilium#hubble#tetragonJapanese Technical Documentation Writing for IT Engineers: Specifications, Design Docs, and Incident Reports
Learn how to write essential technical documents (specifications, design documents, incident reports) used in Japanese IT workplaces. Covers document structure, must-know expressions, and honorific usage with practical e
2026-03-03 · 13 min read #japanese#tech-writing#specification#documentation#business-japaneseComplete Guide to Japanese Expressions for IT Incident Response
Learn practical Japanese expressions used in IT incident response — from incident reporting and escalation to recovery reports and post-incident analysis.
2026-03-03 · 11 min read #japanese#incident-response#business-japanese#2026-03Pod Security Standards (PSA/PSS) Practical Guide
Understand the Privileged/Baseline/Restricted profiles of Kubernetes Pod Security Standards, and learn namespace label configuration and migration strategies through hands-on examples.
2026-03-03 · 6 min read #kubernetes#pod-security#psa#pss#2026-03Kubernetes Network Security with Cilium and eBPF: From L3/L4/L7 Policies to Encryption
Hands-on practice with Cilium CNI eBPF-based network policies. Going beyond the limitations of standard NetworkPolicy, we cover L7 HTTP/gRPC filtering, DNS-based policies, WireGuard encryption, and Hubble monitoring.
2026-03-03 · 9 min read #kubernetes#cilium#ebpf#network-policy#securityThe Complete vLLM Guide — From PagedAttention to Production Optimization
Covering everything about LLM inference optimization — from vLLM core PagedAttention mechanism to Continuous Batching, Tensor/Pipeline Parallelism, and Prefix Caching.
2026-03-03 · 9 min read #llm#vllm#inference#paged-attention#model-servingComplete Guide to LLM Function Calling: From Tool Use Patterns to Production Design
A deep dive into the Function Calling (Tool Use) mechanism of LLMs. Covers implementation methods across OpenAI, Anthropic, and open-source models, along with error handling, parallel invocation, and production design pa
2026-03-03 · 8 min read #llm#function-calling#tool-use#openai#ai-agentComplete Guide to Japanese IT Company Technical Interviews — Question Patterns and Japanese Response Expressions
A guide to frequently asked question patterns and Japanese response expressions in Japanese IT company technical interviews. Covers self-introduction, technical experience descriptions, motivation for applying, and rever
2026-03-03 · 17 min read #japanese#interview#it-career#business-japanese#2026-03Complete Guide to Japanese System Design Presentation Expressions for IT Engineers
Learn Japanese expressions for presenting system designs at Japanese IT companies. Covers 100+ practical expressions for architecture explanations, technology selection rationale, trade-off analysis, and Q&A handling.
2026-03-03 · 13 min read #japanese#system-design#presentation#it-japanese#businessComplete Guide to IT Business Emails — How to Write Japanese Emails with Practical Examples
A practical guide to writing Japanese business emails at IT companies, organized by scenario. Covers subject lines, keigo usage, and a collection of templates.
2026-03-03 · 13 min read #japanese#business-email#it-japanese#keigo#2026-03Karpenter Practical Guide — A New Paradigm for Kubernetes Node Autoscaling
From the core architecture of Karpenter — the replacement for Cluster Autoscaler — to NodePool, EC2NodeClass configuration, Consolidation strategies, and production tips, all with code examples.
2026-03-03 · 9 min read #kubernetes#karpenter#autoscaling#eks#2026-03Technical Writing English Guide — How to Write Technical Documentation for Developers
Covers the essentials of Technical Writing, from writing READMEs, API docs, and RFCs to clear sentence structure and common English mistakes developers make.
2026-03-03 · 7 min read #english#technical-writing#documentation#2026-03The Complete Guide to Code Review English — 100+ Practical Expressions for PR Reviews
A situational guide to frequently used English expressions in PR reviews. Covers change requests, praise, questions, and suggestions with real code review examples.
2026-03-03 · 9 min read #english#code-review#technical-english#communication#2026-03