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PostDelayedTask doesn't guarantee task execution order. For example, if you post two tasks, A and B, back-to-back using the same delay there is no guarantee that A will be executed before B. Re-implemented pacing using sleep(). Changed pacer to compute task scheduled time instead of delay. Sleep time is calculated right before task start. This provides better accuracy by accounting for any delays that may happen after pacing time is computed and before task queue is ready to run the task. It is tricky to implement pacer tests using simulated clocks. The test use system time which make them flacky on low performance bots. Keep the test disabled by default. Bug: b/261160916, webrtc:14852 Change-Id: I88e1a2001e6d33cf3bb7fe16730ec28abf90acc8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/291804 Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39302} |
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