performance

pnpm vs npm vs Bun: Which Installs Fastest? 14s, 3.1s, 1.5s

npm 12.2.0 vs pnpm 12.9.1 vs Bun 1.4.2 on one 24-dependency React + Vite app: from scratch 14.2 s / 3.1 s / 1.5 s; lockfile + warm cache 2.9 s / 0.28 s / 0.27 s; lockfile + empty cache 3.9 s / 2.3 s / 0.45 s. Disk, lockfile size and the pnpm phantom-dependency catch.

Is Vitest 5 Faster Than Vitest 4? We Timed It

Vitest 5 upgrade decision with ShopperCove timing: 20-file forks suite median ~512 ms on 5.0.3 vs ~547 ms on 4.1.10 (Node 22.20.0). Engines require Node 22.12+ and Vite 6.4+. clearMocks defaults true. No affiliate.

Rspack 2.2.8: resolver cache, memory shrinks, modern-module deferral (28 Sep 2026)

Rspack published @rspack/core@2.2.8 on 28 September 2026: resolver caching, memory shrinks, and modern-module deferral fixes on the 2.2 line. Upgrade checklist only; no affiliate.

memoryview vs bytes Slice: Localhost Lab

shlex.split vs str.split: Localhost Lab

ast.literal_eval vs json.loads: Localhost Lab

selectors vs select.select: Localhost Lab

enum.IntEnum vs int Status Codes: Localhost Lab

Path.read_text vs open().read: Localhost Lab

gc.collect Cost Empty vs Cycles: Localhost Lab

Hands-on gc.collect cost empty vs cyclic garbage lab: real collect latency plus reclaim counts, measured on Linux localhost today in this lab for SREs.

sqlite3 vs shelve Local KV: Localhost Lab

Hands-on sqlite3 vs shelve local KV store lab: real insert/get ops/s plus file sizes, measured on Linux localhost today in this hands-on lab for SREs.

html.parser vs regex Tag Strip: Localhost Lab