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3402d523
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2018-10-30T15:14:52
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Try to reduce variance in angle_perftests.
This change does a few things:
- make perf test runner script print % variation instead of stddev
This makes it a bit more clear how much variance there is.
- stabilize CPU in the render perf tests
Setting a thread affinity and priority should stop from switching cores
during the run. Hopefully can prevent background noise from changing
the test results.
- warm up the benchmark with a few iterations
This should hopefully make the test results a bit more stable.
- output a new normalized perf result value
The new result is normalized against the number of iterations. So it
should hopefully be stable even if the number of iterations is changed.
- increases the iteration count in the draw call perf tests.
These tests were completely dominated by SwapBuffers time. Increasing
the iterations per step means we actually are bottlenecked on CPU time
instead.
Bug: angleproject:2923
Change-Id: I5ee347cf93df239ac33b83dc5effe4c21e066736
Reviewed-on: https://chromium-review.googlesource.com/c/1303679
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
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c6dbc253
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2018-04-30T19:07:56
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Scope ANGLE_UNUSED_VARIABLE.
Renames the macro to be more ANGLE-ey.
Refactoring only.
Bug: angleproject:1671
Change-Id: I8f2dd227c7e2025886ec66e85efa877ea261d0ad
Reviewed-on: https://chromium-review.googlesource.com/1036209
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
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c4f1dd83
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2017-10-25T17:02:29
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Use angle::BitSetIterator optimizations on arm64 as well
Previously were enabled only on x86_64.
Also change from using target_cpu to current_cpu, as the doc recommends.
BUG=angleproject:1814
Change-Id: Ia7e8e930c76aab5cfb47b75e0ec78902ab313237
Reviewed-on: https://chromium-review.googlesource.com/737438
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
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6de51858
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2017-04-12T09:53:01
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Optimize angle::BitSetIterator.
Adds a new custom bitset template to handle packing as many bits as
possible into a single variable. Intelligently select the right class
depending on platform features and bit sizes.
For now, always use a packed 64-bit set on 64-bit, instead of using
a 32-bit set for smaller bitsets.
BUG=angleproject:1814
Change-Id: I3ffef815c15515555833f6fc9302d8a4eee5423b
Reviewed-on: https://chromium-review.googlesource.com/471827
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
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