zperf zperf: Zig Performance Guide zperf rule ids (slugs)zperf corpus targets zperf evidence policy Zig linting tools: scope and comparison

zp-alloc-hot — alloc-in-loop zp-alloc-print-hot — measured, still hint zp-aos-single-field — aos-single-field zp-append-without-reserve — append-without-reserve zp-arena-reset-free-all — arena-reset-free-all zp-bool-array — bool-array zp-broad-runtime-safety — pending measure zp-catch-unreachable-alloc — N/A (correctness)zp-catch-unreachable-io — N/A (correctness)zp-clock-hot — measured, still hint zp-create-destroy-hot — create-destroy-in-loop zp-debug-allocator — N/A (static-only)zp-fixed-size-alloc-hot — fixed-size-alloc-in-loop zp-invariant-float-div — invariant-float-div zp-json-hot — measured, still hint zp-large-struct-by-value — inconclusive zp-map-put-without-ensure — map-put-without-ensure zp-missing-free — N/A (correctness)zp-open-file-hot — measured, still hint zp-optional-scalar-field — pending measure zp-oversized-enum-tag — N/A (static size)zp-packable-bools — pending measure zp-page-allocator-small — page-allocator-small zp-per-packet-alloc — hot-path allocation zp-print-hot — print-in-loop zp-queue-ordered-remove — queue-ordered-remove zp-runtime-div-hot — runtime-div-in-loop zp-shift-on-read — shift-on-read zp-static-string-map — static-string-map zp-unbuffered-io — unbuffered-io zp-usize-index-field — pending measure

zp-alloc-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-alloc-print-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-clock-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-create-destroy-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-extern-struct-padding — extern-struct-padding zp-extern-struct-padding — removed 2026-10-23 (Asia/Shanghai)zp-fixed-size-alloc-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-json-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-open-file-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-print-in-loop — renamed 2026-10-27 (Asia/Shanghai)zp-runtime-div-in-loop — renamed 2026-10-27 (Asia/Shanghai)

Project

Contributing Changelog Security Policy Contributor Covenant Code of Conduct AGENT.md — XPerf agent operating contract

LanguagesZigEvidence_removed

zp-extern-struct-padding — removed 2026-10-23 (Asia/Shanghai)

Status: removed. Reordering an extern struct from 24 bytes to 16 bytes (about 1.5× smaller) changed a field walk by about 1.21×. ABI-locked layouts were the usual hit. No matcher.

Slug never reused.
Historical JSONL and the note stay beside this file. Fixtures are under _removed/fixtures/.

zp-extern-struct-padding — extern-struct-padding

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