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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3525 posts
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FreeBSD Jails, ZFS, and Practical Server Operations
A practical guide to running FreeBSD in production, covering why teams still choose it, how jails differ from containers, how ZFS changes operations, and which runbooks matter most for long-lived servers.
2026-03-17 · 4 min read #freebsd#zfs#jails#server-operations#linuxPrometheus in Production: TSDB, Cardinality, Recording Rules, Federation, and Remote Write
A practical Prometheus operations guide covering TSDB retention, high-cardinality control, recording and alerting rule design, and when to choose federation versus remote write.
2026-03-17 · 5 min read #prometheus#observability#tsdb#cardinality#recording-rulesFAANG System Design Interview Complete Guide
A comprehensive guide to mastering FAANG system design interviews. Covers the RESHADED framework, URL Shortener, Twitter Feed, YouTube Streaming, Chat System design examples, and company-specific question trends.
2026-03-17 · 16 min read #system-design#faang#면접#대규모시스템#distributed-systemsKCSA Kubernetes and Cloud Native Security Associate Practice Exam: 60 Questions ♪ Listenable
A full 60-question KCSA practice exam covering all domains: Cloud Native Security Overview, Cluster Component Security, Security Fundamentals, Threat Model, Platform Security, and Compliance Frameworks. Complete preparat
2026-03-17 · 29 min read #kubernetes#kcsa#cncf#kubernetes-security#certificationKubernetes CKAD Certification Practice Exam (55 Questions + 10 Practical Simulations) ♪ Listenable
Comprehensive CKAD (Certified Kubernetes Application Developer) practice exam with 55 multiple-choice questions and 10 hands-on practical simulations covering application design, deployment, observability, configuration/
2026-03-17 · 28 min read #kubernetes#ckad#certification#applicationdevelopment#devopsComplete Guide to Open Source LLMs: Llama 3, Mistral, DeepSeek, Qwen, and Gemma
A comprehensive overview of the open source LLM landscape covering Llama 3, Mistral, DeepSeek, Qwen, and Gemma.
2026-03-17 · 14 min read #llm#llama#mistral#deepseek#qwenComplete Guide to LLM Evaluation and Benchmarking: MMLU, MT-Bench, RAGAS, LM-Eval ♪ Listenable
A complete guide to evaluating LLMs correctly. Covers standard benchmarks such as MMLU, MT-Bench, and HumanEval, evaluating RAG systems with RAGAS, practical use of LM-Evaluation-Harness, and building production LLM eval
2026-03-17 · 17 min read #llm#evaluation#benchmark#ragas#lm-evalBuilding LLM from Scratch: Complete Guide to Understanding GPT through Code ♪ Listenable
A complete guide to building and understanding Large Language Models from scratch. Implement a full GPT architecture in PyTorch — from tokenizer to Transformer, pretraining, and fine-tuning.
2026-03-17 · 21 min read #llm#gpt#transformer#from-scratch#deep-learningLLM Fine-tuning Complete Guide: Master LoRA, QLoRA, RLHF, and DPO ♪ Listenable
A complete guide covering every LLM fine-tuning technique. From Full Fine-tuning to LoRA, QLoRA, RLHF, DPO, and Instruction Tuning — master them all with HuggingFace PEFT and hands-on examples.
2026-03-17 · 21 min read #llm#fine-tuning#lora#qlora#rlhfComplete Guide to Korean NLP and LLM: Mastering KoBERT, KLUE, HyperCLOVA, and EXAONE ♪ Listenable
A comprehensive guide to Korean NLP and LLM covering KoBERT, KLUE, HyperCLOVA, and EXAONE.
2026-03-17 · 27 min read #korean-nlp#kobert#klue#hyperclova#exaoneLLM Pretraining & Scaling Laws: From Chinchilla to Flash Attention and MoE
A complete guide to LLM pretraining: Chinchilla scaling laws, Common Crawl data pipelines, Flash Attention 2, GQA, MoE architectures, and the latest pretraining recipes from DeepSeek-V3, Llama 3.1, and phi-4.
2026-03-17 · 14 min read #llmpretraining#scalinglaws#chinchilla#flash-attention#mixtralmoeCKS (Certified Kubernetes Security Specialist) Complete Practice Exam ♪ Listenable
Full CKS practice exam with 55 conceptual MCQs and 10 hands-on scenarios covering all domains: Cluster Setup, Hardening, System Hardening, Microservice Vulnerabilities, Supply Chain Security, and Runtime Security.
2026-03-17 · 26 min read #kubernetes#cks#kubernetes-security#certification#cloudsecurityKCNA Kubernetes and Cloud Native Associate Practice Exam: 60 Questions ♪ Listenable
A full 60-question KCNA practice exam covering all domains: Kubernetes Fundamentals, Container Orchestration, Cloud Native Architecture, Observability, and Application Delivery. Complete preparation for the Kubestronaut
2026-03-17 · 25 min read #kubernetes#kcna#cncf#cloud-native#certificationKubernetes CKA Certification Practice Exam (55 Questions + 10 Practical Simulations) ♪ Listenable
Comprehensive CKA (Certified Kubernetes Administrator) practice exam with 55 multiple-choice questions and 10 hands-on practical simulations covering all exam domains: cluster architecture, workloads, networking, storage
2026-03-17 · 26 min read #kubernetes#cka#certification#cloud-native#devopsGPU Hardware Complete Guide for AI: From Architecture to Selection Criteria ♪ Listenable
A comprehensive guide to GPU hardware for AI research and training. Covers NVIDIA GPU architectures (Hopper, Blackwell), Tensor Core, NVLink, HBM memory, A100/H100/H200/B200 comparisons, and cloud GPU options in detail.
2026-03-17 · 23 min read #gpu#hardware#nvidia#cuda#gpu-cudaAI Hardware Accelerators Complete Guide: H100, TPU, Cerebras, and Edge AI Chips Compared ♪ Listenable
A comprehensive comparison guide covering NVIDIA H100 Tensor Core, Google TPU v5 systolic array, Cerebras WSE-3, AWS Inferentia 2, and Apple Neural Engine for AI hardware accelerators.
2026-03-17 · 17 min read #ai-hardware#h100#tpu#cerebras#edge-aiM&A Complete Guide: Mergers & Acquisitions Terminology, Equity Structure, and Acquisition Methods ♪ Listenable
Complete guide to corporate M&A — key terminology, equity structures, acquisition methods (friendly/hostile), Due Diligence, valuation methods, post-merger integration (PMI), defense strategies, and Korean M&A case studi
2026-03-17 · 21 min read #m-and-a#corporate-finance#due-diligence#lbo#hostile-takeoverKorea Business Tax Complete Guide: VAT, Cash Receipts, and Tax Refunds ♪ Listenable
A practical guide for sole proprietors and corporations in Korea covering VAT filing, cash receipt obligations, input tax deductions, and how to claim tax refunds.
2026-03-17 · 20 min read #부가세#현금영수증#세금환급#business-owner#tax-savingThe Complete Guide to Asset Allocation: Portfolio Strategy to Rebalancing ♪ Listenable
A comprehensive guide covering Modern Portfolio Theory, efficient frontier, asset class analysis, strategic vs tactical allocation, All-Weather and Permanent Portfolio concepts, ETF implementation, rebalancing strategies
2026-03-17 · 26 min read #asset-allocation#portfolio#investment#rebalancing#etfGPU Memory Management & LLM Inference Optimization: vLLM, PagedAttention, GPTQ, TensorRT-LLM
A complete guide to LLM inference optimization covering HBM memory hierarchy, KV cache calculations, PagedAttention, GPTQ/AWQ quantization, continuous batching, and vLLM vs TensorRT-LLM comparison.
2026-03-17 · 16 min read #gpumemory#llminference#vllm#paged-attention#gptq