swiftperf Swift performance guide (v0)swiftperf rule ids (slugs)swiftperf corpus targets swiftperf evidence policy

sp-array-no-reserve — measured, still hint sp-clock-hot — measured, still hint sp-dateformatter-hot — measured, still hint sp-file-read-hot — measured, still hint sp-json-decode-hot — measured, still hint sp-print-hot — measured, stays off sp-regex-hot — measured, still hint sp-value-for-key-hot — measured, still hint

sp-clock-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-dateformatter-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-file-read-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-force-unwrap-in-loop — blocked sp-force-unwrap-in-loop — removed 2026-10-23 (Asia/Shanghai)sp-json-decode-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-map-joined-chain — blocked sp-map-joined-chain — removed 2026-10-23 (Asia/Shanghai)sp-print-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-regex-in-loop — renamed 2026-10-27 (Asia/Shanghai)sp-string-plus-in-loop — blocked sp-string-plus-in-loop — removed 2026-10-23 (Asia/Shanghai)sp-value-for-key-in-loop — renamed 2026-10-27 (Asia/Shanghai)

Project

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

LanguagesSwiftEvidence_removed

sp-map-joined-chain — blocked

Status: blocked — no Swift toolchain in the Linux measurement environment (2026-10-22 Asia/Shanghai)

Smell: map→joined

blocked: reason: swift compiler/SDK not available via apt (OpenStack swift packages only). No Apple Swift or official Linux Swift toolchain installed after check. Text-lint is not a bench.

No JSONL invented. Re-measure when swiftc is present.

sp-json-decode-in-loop — renamed 2026-10-27 (Asia/Shanghai)

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sp-map-joined-chain — removed 2026-10-23 (Asia/Shanghai)

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