| Commit message (Collapse) | Author | Age |
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This implementation improves performance of SkMutex acquire / release pair from 42ns -> 13 ns.
SkSharedMutex and SkSpinlock have the same performance.
It also removes specialized windows and linux/mac code.
BUG=skia:
Review URL: https://codereview.chromium.org/1359733002
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DOCS_PREVIEW= https://skia.org/?cl=1316233002
Review URL: https://codereview.chromium.org/1316233002
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DOCS_PREVIEW= https://skia.org/?cl=1316123003
Review URL: https://codereview.chromium.org/1316123003
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Turns out _LIFO does work as we expected, keeping N < M threads active when we
have M live threads but only N units of work to do at a time. Also as we
expected _FIFO does round-robin through the threads.
Performance doesn't seem to be affected, but let's do it anyway.
If nothing else this makes profiles a little easier to read.
I don't see POSIX or Windows equivalents.
BUG=skia:
Review URL: https://codereview.chromium.org/1192433006
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This allows a faster implementation of our SkTaskGroup thread pool.
It also means we don't need SkCondVar (which, remember, isn't supported on XP.)
Doing some testing with SampleApp, this really cuts down on the overhead from SkTaskGroup, e.g. 30% to 10%.
BUG=skia:
Review URL: https://codereview.chromium.org/1192573003
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herb
halcanary
mtklein