Inline TimeSeriesTracker fast path and eliminate FunctionRef overhead. - #823
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SubreleaseStatsTracker::Report, TimeSeriesTracker::Report, SubreleaseStatsEntry::Report, TimeSeriesTracker::IterBackwards, and TimeSeriesTracker::UpdateClock suffer from out-of-line epoch checks, indirect FunctionRef calls per slot, and floating-point duration division. Outlining cold AdvanceClock, templating Iter/IterBackwards, using integer IDivDuration, and predicting empty() false in SubreleaseStatsEntry::Report eliminate indirect branches and call overhead on the hot path. PiperOrigin-RevId: 981457142
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Inline TimeSeriesTracker fast path and eliminate FunctionRef overhead.
SubreleaseStatsTracker::Report, TimeSeriesTracker::Report, SubreleaseStatsEntry::Report, TimeSeriesTracker::IterBackwards, and TimeSeriesTracker::UpdateClock suffer from out-of-line epoch checks, indirect FunctionRef calls per slot, and floating-point duration division. Outlining cold AdvanceClock, templating Iter/IterBackwards, using integer IDivDuration, and predicting empty() false in SubreleaseStatsEntry::Report eliminate indirect branches and call overhead on the hot path.