Add CCKR adaptive log reservoir sampler to Microsoft.Extensions.Telem… - #7676
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Add CCKR adaptive log reservoir sampler to Microsoft.Extensions.Telem…#7676evgenyfedorov2 wants to merge 1 commit into
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…etry Implements the CCKR (Chao-Cohen-Kaplan-Reservoir) adaptive log sampler as implementations of the existing LoggingSampler and LogBuffer seams, so no changes to the logging pipeline are required: - Cckr<TCallsite,TPayload>: bottom-(K+1) weighted reservoir with EXP ranks, cross-period inverse-frequency feedback, Chao1 unseen-weight, bounded novelty preserve, and Horvitz-Thompson sampling weights (faithful port of the reference algorithm). - CckrLoggingSampler (LoggingSampler): the admit/drop decision. CckrLogBuffer (LogBuffer): holds admitted records per category and emits the kept records carrying the sampling.count weight at each flush, reusing SerializedLogRecord/DeserializedLogRecord/IBufferedLogger. - AddCckrLogSampling registers one reservoir instance as both seams. Public API: AddCckrLogSampling, ReservoirSamplingConfig, UnseenWeightMode. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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…etry
Implements the CCKR (Chao-Cohen-Kaplan-Reservoir) adaptive log sampler as implementations of the existing LoggingSampler and LogBuffer seams, so no changes to the logging pipeline are required:
Cckr<TCallsite,TPayload>: bottom-(K+1) weighted reservoir with EXP ranks, cross-period inverse-frequency feedback, Chao1 unseen-weight, bounded novelty preserve, and Horvitz-Thompson sampling weights (faithful port of the reference algorithm).
CckrLoggingSampler (LoggingSampler): the admit/drop decision. CckrLogBuffer (LogBuffer): holds admitted records per category and emits the kept records carrying the sampling.count weight at each flush, reusing SerializedLogRecord/DeserializedLogRecord/IBufferedLogger.
AddCckrLogSampling registers one reservoir instance as both seams. Public API: AddCckrLogSampling, ReservoirSamplingConfig, UnseenWeightMode.
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