[efficiency-improver] Monthly Activity 2026-06

[Evangelink]

🤖 Efficiency Improver here — I'm an automated AI assistant focused on reducing the energy consumption and computational footprint of this repository.

Activity for June 2026

Suggested Actions for Maintainer

• Review PR efficiency/junit-single-pass-property-walk: perf: single-pass PropertyBag walk in JUnitReport TestResultCapture — replaces 5 SingleOrDefault + 1 foreach/GetEnumerator (6 walks + 1 heap alloc) with 1 GetStructEnumerator() pass per JUnit test result

(Previously actioned: #8975 merged — perf: single-pass PropertyBag walk in TrxTestResultExtractor ✅)

Energy Efficiency Backlog

Priority	Focus Area	Opportunity	Estimated Impact
LOW	Code-Level	ToolsTestHost.cs:55 — GroupBy().Where(Count()>1).ToList().ForEach() — startup-only code	Negligible

The hot-path PropertyBag optimisation series is now substantially complete across all report generators (TrxReport, JUnitReport, OpenTelemetry, AzureDevOps, DotnetTestDataConsumer). Further high-impact opportunities require new scanning passes.

Discovered Commands

• Build: ./build.sh (Linux/macOS), .\build.cmd (Windows)
• Test: ./build.sh -test
• Build + Pack: ./build.sh -pack
• Build + Pack + Acceptance Tests: ./build.sh -pack -test -integrationTest
• Single project test (after build): dotnet run --project test/UnitTests/ -f net9.0 --no-build -c Debug
• Note: Build requires full restore (Arcade SDK); --no-restore flag is broken

Run History

2026-06-10 22:24 UTC - Run

• 🔧 Submitted PR (efficiency/junit-single-pass-property-walk): perf: single-pass PropertyBag walk in JUnitReport TestResultCapture — 6 walks + 1 heap alloc → 1 walk, 0 allocs per JUnit test result
• 📊 Measured: 5 PropertyBag traversals + 1 IEnumerator heap alloc eliminated per terminal test result in JUnit streaming mode; build: 0 errors, 0 warnings

2026-06-09 22:15 UTC - Run

• 🔧 Submitted PR [efficiency-improver] perf: single-pass PropertyBag walk in TrxTestResultExtractor #8975: perf: single-pass PropertyBag walk in TrxTestResultExtractor — 9 walks + 2 allocs → 1 walk, 0 allocs per TRX test result — ✅ Merged 2026-06-10

2026-06-08 22:15 UTC - Run

• 🔧 Submitted PR [efficiency-improver] perf: single-pass PropertyBag walk in OpenTelemetryResultHandler.HandleTestResult #8938: perf: single-pass PropertyBag walk in OpenTelemetryResultHandler.HandleTestResult (5 walks + 2 allocs → 1 walk) — ✅ Merged 2026-06-09

Previous runs

• 🔧 PR [efficiency-improver] perf: use SingleOrDefault instead of OfType().Select() for stdout/stderr in OpenTelemetryResultHandler #8908 merged: perf: use SingleOrDefault instead of OfType().Select() for stdout/stderr in OpenTelemetryResultHandler
• 🔧 PR [efficiency-improver] perf: use SingleOrDefault(T) instead of OfType(T)().FirstOrDefault() in AzureDevOps report #8884 merged: perf: use SingleOrDefault(T) instead of OfType(T)().FirstOrDefault() in AzureDevOps report
• 🔧 PR [efficiency-improver] perf: cache ExecutionId and single-pass property scan in DotnetTestDataConsumer #8866 merged: perf: cache ExecutionId + single-pass property scan in DotnetTestDataConsumer
• 🔧 PR [efficiency-improver] perf: cache newline+color string in SimpleAnsiTerminal #8834 merged: perf: cache newline+color string in SimpleAnsiTerminal
• 🔧 PR [efficiency-improver] perf: single-pass TestNode property serialization in SerializerUtilities #8806 merged: perf: single-pass TestNode property serialization in SerializerUtilities
• 🔧 PR [efficiency-improver] perf: single-pass TRX message partitioning in TrxReportEngine #8743 merged: perf: single-pass TRX message partitioning in TrxReportEngine
• 🔧 PR [efficiency-improver] perf: encode JSON body once in TcpMessageHandler.WriteRequestAsync #8720 merged: perf: encode JSON body once in TcpMessageHandler.WriteRequestAsync
• 🔧 PR [efficiency-improver] perf: avoid double IEnumerable enumeration in DynamicDataShouldBeValidAnalyzer #8705 merged: perf: avoid double IEnumerable enumeration in DynamicDataShouldBeValidAnalyzer
• 🔧 PR [efficiency-improver] perf: reduce redundant UTF-8 encoding in IPC BaseSerializer WriteField #8692 merged: perf: reduce redundant UTF-8 string encoding in IPC BaseSerializer

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Efficiency Improver workflow.

🤖 Automated content by GitHub Copilot. Posted via a maintainer's GitHub token, so it appears under their account — the account owner did not write or approve this content personally. Generated by the Efficiency Improver workflow.{ai_credits_suffix} · [◷]( · ◷)

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