switch to SkMutex in SkStrike
The docs team is producing thumbnails for pages using 20
threads. About 0.1% of their machines are showing massive
slowdown and contention. When looking at /profilez most of the
threads are waiting in spin locks to find a strike. This is
keeping the server from doing work on other pages that can make
progress. Move from SkSpinlock to SkMutex to allow other threads
to make progress.
Bug: b/182395513
Change-Id: I96448d784198041390e62bc5507ab0081d8f71b4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/407097
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2 files changed