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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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bfeed4dd
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2018-02-06T16:39:29
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Add a compiler perf test shader to stress traversers
Add a compiler perf test that's targeted at AST traversers. It
triggers many traversers that mutate the AST and run multiple
iterations particularly on the HLSL backend.
BUG=angleproject:827
TEST=angle_perftests
Change-Id: I75d89e8ae0fd7959f2c7fbb133c13ccde22abc37
Reviewed-on: https://chromium-review.googlesource.com/904622
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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1436d434
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2018-01-24T14:38:22
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Add a simple compiler perf test
The perf test initializes the compiler once and then translates the
same shader to HLSL, GLSL or ESSL repeatedly.
There are three variations of the test compiling different shaders.
One is a real-world shader.
BUG=angleproject:2267
TEST=angle_perftests
Change-Id: Ie07b67d7548d105c4c93dff3b6196233d83b5b8c
Reviewed-on: https://chromium-review.googlesource.com/883784
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
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