d0b3c169ac
Currently, trace processing interleaves state/statistics updates and emitting trace viewer objects. As a result, if events are being filtered, either by time or by goroutines, we'll miss those state/statistics updates. At best, this leads to bad statistics; however, since we're now strictly checking G state transitions, it usually leads to a failure to process the trace if there is any filtering. Fix this by separating state updates from emitting trace object. State updates are done before filtering, so we always have correct state information and statistics. Trace objects are only emitted if we pass the filter. To determine when we need to emit trace counters, rather than duplicating the knowledge of which events might modify statistics, we keep track of the previously emitted counters and emit a trace counter object whenever these have changed. Fixes #17719. Change-Id: Ic66e3ddaef60d1acaaf2ff4c62baa5352799cf99 Reviewed-on: https://go-review.googlesource.com/32810 Reviewed-by: Dmitry Vyukov <dvyukov@google.com> |
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