objcperf Objective-C performance guide (v0)objcperf rule ids (slugs)objcperf corpus targets objcperf evidence policy

oc-clock-hot — measured, still hint oc-dateformatter-hot — measured, still hint oc-file-read-hot — measured, still hint oc-json-hot — measured, still hint oc-nslog-hot — fprintf/NSLog-like in loop oc-nsstring-append-hot — NSString append vs NSMutableString oc-regex-hot — measured, still hint oc-value-for-key-hot — measured, still hint

oc-clock-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-dateformatter-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-file-read-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-json-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-nslog-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-nsstring-append-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-regex-in-loop — renamed 2026-10-27 (Asia/Shanghai)oc-value-for-key-in-loop — renamed 2026-10-27 (Asia/Shanghai)OC001 — removed OC001 — removed 2026-10-22 (Asia/Shanghai)OC004 — removed OC004 — removed 2026-10-22 (Asia/Shanghai)

Project

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

LanguagesObjective-CEvidence_removed

OC001 — removed

Date: 2026-10-22 (Asia/Shanghai)
Reason: GNUstep jitter mom≈1.02× null; non-Apple proxy
Policy: id retired permanently; do not renumber other rules to fill the gap; do not reuse OC001 for a new smell.

oc-value-for-key-in-loop — renamed 2026-10-27 (Asia/Shanghai)

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OC001 — removed 2026-10-22 (Asia/Shanghai)

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