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performance
289 postsMicrosoft's tgrep: Trigram-Indexed grep in Rust, Up to 52x Faster
Microsoft's tgrep brings trigram-indexed, client/server grep to Rust, delivering up to 52x faster searches than ripgrep on large repos.
Why TanStack.com Removed React Server Components
TanStack removed React Server Components from tanstack.com, shrinking its markdown/highlight stack and returning to simpler, faster regular SSR.
Headroom: Open-Source Tool Compresses AI Agent Context by Up to 95%
Headroom is an open-source library that compresses AI agent tool outputs by 55-95%, losslessly, via proxy or library mode. 59K GitHub stars.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comLLM Agent Performance Is a Distributed Systems Problem
FixBugs's team shows how token math, parallel chunking, and queues cut LLM agent latency: file analysis dropped from 10 minutes to 40 seconds.
Why Distributed Systems Are Often Slower Than One Laptop
The 2015 COST paper showed distributed systems often lose to a single thread. A worked case study reveals the real cost of premature scaling.
Beeline moves Layer 7 service mesh policies into eBPF
Beeline enforces 89% of service mesh L7 policies directly in eBPF, cutting request latency up to 6x versus traditional proxy-based enforcement.
How AI-Assisted Debugging Made jsdom 43% Faster for React Tests
Sentry engineers used AI-assisted debugging to fix three jsdom bottlenecks, making a React Testing Library suite 43% faster without changing any tests.
Why removing an optimization made GitHub's case-folding 15x faster
How GitHub's Blackbird sped up ASCII case-folding 15x by removing an early-exit branch, unlocking full compiler vectorization for memory-speed throughput.
The physics of Docker build caching: three caches, one wave
A measured breakdown of Docker's three build caches — layer chain, mount cache, image store — and when each caching strategy actually helps.
How Postgres-Backed Queues Scale to 30K Workflows per Second
DBOS details how SKIP LOCKED, conditional isolation levels, and partial indexes let Postgres queues scale to 30K workflows per second.