| Commit message (Collapse) | Author | Age |
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This seems to be ~100x higher resolution than QueryPerformanceCounter. AFAIK, all our Windows perf bots have constant_tsc, so we can be a bit more direct about using rdtsc directly: it'll always tick at the max CPU frequency.
Now, the question remains, what is the max CPU frequency to divide through by? It looks like QueryPerformanceFrequency actually gives the CPU frequency in kHz, suspiciously exactly what we need to divide through to get elapsed milliseconds. That was a freebie.
I did some before/after comparison on slow benchmarks. Timings look the same. Going to land this without review tonight to see what happens on the bots; happy to review carefully tomorrow.
R=mtklein@google.com
TBR=bungeman
BUG=skia:
Review URL: https://codereview.chromium.org/394363003
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BUG=skia:
Review URL: https://codereview.chromium.org/397843002
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BUG=skia:
Review URL: https://codereview.chromium.org/391193003
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This breaks a bunch of circular dependencies between tools and gm and bench.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/4ed75287aed6371c6e4a41ffcc78c8a49c9810ed
CQ_EXTRA_TRYBOTS=tryserver.skia:Build-Mac10.7-Clang-Arm7-Debug-iOS-Trybot,Test-Ubuntu12-ShuttleA-GTX660-x86-Debug-Trybot
R=tfarina@chromium.org, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/344213003
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(https://codereview.chromium.org/344213003/)
Reason for revert:
GpuTimer broken
Original issue's description:
> Move BenchTimer to tools as Timer
>
> This breaks a bunch of circular dependencies between tools and gm and bench.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/4ed75287aed6371c6e4a41ffcc78c8a49c9810ed
R=tfarina@chromium.org, mtklein@chromium.org
TBR=mtklein@chromium.org, tfarina@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Author: mtklein@google.com
Review URL: https://codereview.chromium.org/346753003
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This breaks a bunch of circular dependencies between tools and gm and bench.
BUG=skia:
R=tfarina@chromium.org, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/344213003
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