csharpperf C# performance guide (v0)csharpperf rule ids (slugs)csharpperf corpus targets csharpperf evidence policy

cs-clock-hot — measured, still hint cs-console-hot — Console.WriteLine in loop cs-field-by-name-hot — measured, still hint cs-file-read-hot — measured, still hint cs-format-hot — measured, still hint cs-json-hot — measured, still hint cs-linq-materialize-hot — measured, still hint cs-list-add-no-capacity — List.Add without Capacity cs-regex-hot — Regex.IsMatch(pattern) in loop cs-string-plus-hot — string += in loop

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

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csharpperf evidence

Updated 2026-10-22 Asia/Shanghai (Batch B G4 fill).

Stock harness and the rest harness were rerun on .NET 10.0.13. Defaults unchanged. cs-list-add-no-capacity is about 1.31× and stays off. cs-json-hot is one fixed payload and stays hint.

See per-rule *.md + *.jsonl (or blocked stubs). Policy: ../docs/evidence-policy.md. Root matrix: ../../../docs/rule-regression.md.

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