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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3517 posts
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Normalization and Activation — Keeping Training From Falling Apart
Confirming from config values why RMSNorm, pre-norm, and SwiGLU became the defaults, then walking through the newer devices that stop attention logits from exploding — the QK-Norm of Qwen3 and the QK-Clip of Kimi K2 — wi
2026-08-12 · 6 min read #ai-papers#model-internals#rmsnorm#swiglu#training-stabilityAttention Variants — From MHA to MLA, and How the KV Cache Shrinks
Comparing MHA, MQA, GQA, and MLA using real config values. Working out with formulas and numbers how the grouped-query attention in Qwen3, Mixtral, and GLM-4.5 and the latent attention in DeepSeek-V3 and Kimi K2 reduce p
2026-08-12 · 6 min read #ai-papers#model-internals#attention#gqa#mlaWhat Is Not in the Asset Inventory Never Gets Scanned — OT Exposure Management, From the Water Utility PLC Case
On 30 July 2026 CISA warned of a sharp rise in activity targeting PLCs in the water and wastewater sector and urged operators to remove internet-exposed OT immediately. The behavior the advisory observed was not compromi
2026-08-09 · 9 min read #security#ot#ics#plc#cisaA Breach With No Attacker — Why Agent Credentials Deserve Another Look
Hugging Face disclosed a production breach caused by autonomous agents on 16 July 2026, and about three weeks later OpenAI revealed that the attack had leaked out of its own training environment. This post is not an inci
2026-08-09 · 8 min read #security#llm#agent#incident-response#credentialsA Single Instruction Can Take 62 Seconds — Latency Is a Property of the Path, Not of the Instruction
The Assembly Hall of Shame is a leaderboard for the competition to make a single instruction as slow as possible. At the bottom, nop takes 1 cycle; at the top, fxrstor64 takes 198 billion cycles, or 62 seconds. Read that
2026-08-09 · 11 min read #os-concepts#performance#cpu#microarchitecture#benchmarkWhy Diátaxis Gets Mistaken for Four Folders — And Why Two Modes in One Page Collapse
Diátaxis divides documentation into four kinds: tutorial, how-to, reference, and explanation. Yet most teams finish their adoption by creating four folders, and the actual problem stays exactly where it was. The real fai
2026-08-09 · 9 min read #documentation#diataxis#technical-writing#developer-experience#information-architectureHow a Domain Says It Is For Sale — When DNS Became a Channel for Claims
A domain can be registered, serving a perfectly healthy site, and still be for sale — and until now a machine had no way to find that out. RFC 10023 defines that signal with a single underscore-prefixed node name and a T
2026-08-09 · 7 min read #dns#rfc#networking#domain#protocolThe Exact Scope of the Phrase x86 Hardware Backdoor — Reading rosenbridge as Its Author Wrote It
The repository title says hardware backdoors in x86 CPUs, but the body of the README states that the only thing believed to be affected is the VIA C3 and that later generations no longer carry the feature. In the disclai
2026-08-09 · 9 min read #security#hardware#x86#cpu#fuzzingA Harness Is Not Configuration but a Deployable — The Real Bottleneck of the Self-Improvement Loop
The harness engineering post Lilian Weng published in July 2026 gives a name to the whole system wrapped around a model and treats it as a single engineering object. Rather than restating that definition, this post cover
2026-08-09 · 7 min read #llm#agent#harness-engineering#context-engineering#evaluationDoes Running Five Agents Really Make You Five Times Faster — The Bottleneck in Parallel Work Is Not Generation
Purpose-built environments for running several coding agents at once are multiplying. Orca is one of them, and it pitches spraying a single prompt at several agents, isolating each in its own git worktree, then comparing
2026-08-09 · 9 min read #developer-tools#git#worktree#code-review#workflowVisitor Analytics Shows Only 0.5 Percent of Your Traffic — Judge Bots by Origin, Not by Self-Report
Drawing on one year of defending a 1.5-million-page site against scrapers, this post sets out the principles of dealing with bot traffic. JavaScript-based analytics cannot count bots, so you have to read server logs, and
2026-08-09 · 11 min read #network#bot#cloudflare#waf#scrapingWhen Does a Code Screenshot in Your Docs Start Lying — Turning Images into Build Artifacts
A code screenshot captured by hand and pasted into a document is an artifact with no source. The code changes and the image does not, so at some point it quietly starts showing something false. Generate the image from a
2026-08-09 · 8 min read #documentation#developer-tools#cli#ci#automationReasoning Effort Is Not a Model Choice but a Per-Request Deployment Parameter
The DeepSeek V4 Flash 0731 results page published by ARC Prize carries not one score but three, one per reasoning effort level. This post computes what can actually be read out of those three numbers: that the same step
2026-08-09 · 8 min read #llm#benchmark#arc-agi#inference#costBus Factor Is Not the Number of People Who Know the Code but the Number of People Who Can Decide
The Nixpkgs core team disbanded after ten months. In a repository with thousands of contributors, the people holding delegated decision-making authority numbered two, and when those two stepped down that jurisdiction was
2026-08-09 · 9 min read #devops#open-source#governance#nix#supply-chainYou Added Registry Instances and Availability Did Not Move — What zot Scale-Out Actually Sells
Taking zot as the example, this post takes apart the scaling design of a container registry. A structure that assigns repositories to instances by consistent hashing and has non-owner nodes proxy the request onward is sh
2026-08-09 · 8 min read #devops#oci#registry#zot#containerThe Real Reason Web Editors Have No Ruler — The Ruler Is Not Missing, the Paper Is
Of everything Word has and web editors do not, the most frequently requested feature is the ruler. It is not that nobody has built one. It is that the web has no page model, so you cannot even settle what a centimetre is
2026-08-09 · 8 min read #frontend#rich-text-editor#ui-design#contenteditable#developer-toolsWhy Two Projects at the Same Company Reached Opposite Conclusions on AI Contributions
OpenJDK banned contributions made with generative AI outright in April 2026, while GraalVM, under the same Oracle umbrella, explicitly permitted the use of AI coding assistants around the same time. Both projects use the
2026-08-09 · 8 min read #culture#open-source#ai#policy#code-reviewThe 300x Is Not a Number You Get by Tuning PostgreSQL — The Volcano Model and Vectorized Execution
A precise dissection of the 300x published alongside the pgrust 0.2 release. That figure did not come from changing a PostgreSQL setting; it is a ClickBench measurement of a database newly implemented in Rust, while the
2026-08-09 · 9 min read #postgresql#database#performance#query-engine#simdLookup Cost Decides What You Can Read — From Two-Thousand-Year-Old Texts to Code Navigation
A site has appeared that gathers 1,060 Greek and Latin works and, when you click any word, shows its lemma, its morphological parsing, and its dictionary entry. The impressive part is not the volume of text but that the
2026-08-09 · 8 min read #developer-tools#code-navigation#ide#reading#toolingCoding Agent Spend Is Controlled by Friction, Not by Caps
Two engineering posts Databricks published back to back in July and August 2026 show that the handling of coding agent spend is moving away from budget caps and toward a gateway plus progressive friction. This post takes
2026-08-09 · 8 min read #mlops#llm#cost#ai-gateway#developer-productivity