[Impeller] disable blending in gaussian intermediate steps. #51118
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gaaclarke
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…144659) flutter/engine@effcf97...d374c78 2024-03-06 [email protected] Revamp the `scenario_app/../README.md` to encourage self-sustenance (flutter/engine#51196) 2024-03-06 [email protected] [Impeller] disable blending in gaussian intermediate steps. (flutter/engine#51118) 2024-03-06 [email protected] [Impeller] Enable depth buffer clipping & Stencil-then-Cover path rendering. (flutter/engine#51219) 2024-03-06 [email protected] Roll Skia from 37947aec8c5c to 1d1fd7fe1a89 (1 revision) (flutter/engine#51216) 2024-03-06 [email protected] [Impeller] Fix path winding when bridging from contours with an odd number of points. (flutter/engine#51218) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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This appears to have dropped GPU frame time quite a bit? |
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Maybe too much... |
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@jonahwilliams Does this need an issue to track follow-up? |
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I'm just going to revert this, I was waiting to see if this was transient at all. Either its due to a different change in the roll or this is having some odd benchmark impact that I'm not sure what to make of. |
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…51118)" (#51244) Reverts: #51118 Initiated by: jonahwilliams Reason for reverting: unexpected performance change https://flutter-flutter-perf.skia.org/e/?queries=sub_result%3D90th_percentile_frame_rasterizer_time_millis%26sub_result%3D99th_percentile_frame_rasterizer_time_millis%26sub_result%3Daverage_frame_rasterizer_time_millis%26sub_result%3Dworst_frame_rasterizer_time_millis%26test%3Dbackdrop_filter_perf_ios__timeline_summary&selected=commit%3D39677%26name%3D%252Carch%253 Original PR Author: jonahwilliams Reviewed By: {gaaclarke} This change reverts the following previous change: Noticed this while working on the StC debugging. We can disable blending on all intermediate gaussian steps. I don't know how much of an impact this has in practice.
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Reverted landed but benchmarks didn't change, so it might actually be a StC issue - which is the other commit. FYI @bdero |
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Noticed this while working on the StC debugging. We can disable blending on all intermediate gaussian steps. I don't know how much of an impact this has in practice.