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

Project

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

LanguagesZigEvidence

zp-optional-scalar-field — pending measure

Status

pending measure — no evidence/zp-optional-scalar-field.jsonl yet.

Reason

Optional scalar padding / layout holes are a density claim. No bandwidth harness this pass.

Why no JSONL

Same class as zp-packable-bools/zp-usize-index-field — need memory-traffic proof, not a tiny loop.

Unblock

Packed vs padded struct array scan with measurable cache effect; then JSONL. Until then the rule stays off.

zp-open-file-hot — measured, still hint

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Status Reason Why no JSONL Unblock