commit 0a025345fe7cc4cb5554a25c687f9b98bb15ae4a
author Jianhui Dai <jianhui.j.dai@intel.com> Fri Mar 17 00:20:04 2023
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Mar 21 23:07:40 2023
tree 1c2d0f16c5d9d2fbc002b85290bd29ee916fccef
parent e798ea637137d5d21db713c7bbbb2fccb12d5bb6

RtcEventLog: Separate `LogToMemory` from TaskQueue to current thread

Original implementation uses TaskQueue to async execute both `LogToMemory` and `WriteToOutput`. `LogToMemory` is invoked in high frequency, but the execution takes a very short time. It would be a bit more expensive to post on TaskQueue than execution on current thread with locking. It is because that the TaskQueue switches the thread context for execution.

This CL separates `LogToMemory` from TaskQueue to current thread, in
order to avoid frequent context switching; And periodically schedule
`WriteToOutput` to TaskQueue, not block current thread.

Link: https://webrtc-review.googlesource.com/c/src/+/283641
Bug: chromium:1288710
Change-Id: Ic78216aff16d1883b109e360a0892da3ca8f5ecb
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/295640
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Markus Handell <handellm@webrtc.org>
Reviewed-by: Markus Handell <handellm@google.com>
Cr-Commit-Position: refs/heads/main@{#39629}