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Add profileSingleIteration option to dotMemory/dotTrace diagnosers - #3334
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timcassell merged 1 commit intoNov 15, 2026
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Snapshots currently cover every operation of the actual run, which makes them large and hard to use. Add an opt-in option (default: false) that profiles only the extra iteration via the BeforeExtraIteration and AfterExtraIteration signals. Fixes dotnet#2628
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profileSingleIterationoption (default:false) toDotMemoryDiagnoser,DotTraceDiagnoserand their attributes.SnapshotProfilerBasereturnsRunMode.ExtraIterationand starts/stops the profiler onBeforeExtraIteration/AfterExtraIterationinstead ofBeforeActualRun/AfterActualRun. The snapshot then covers a single iteration only.ProfileSingleIterationproperty and a constructor parameter toSnapshotProfilerBase.[DotMemoryDiagnoser(profileSingleIteration: true)].Fixes #2628