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@dkwingsmt dkwingsmt commented Jan 2, 2024

This PR reverts the following two PRs:

Effectively,

Illegal renders are... in debug build in release build
Before revert Skipped in Dart Skipped in Dart
After revert Skipped in Dart Passed in Dart and rendered in native

which means that the illegal renders will take effect in release mode, the mode that the benchmarks are performed in.

This is due to a discovery that the revert #49238 did not bring back the performance. We suspect that some other changes after the culprit (#47239) is also responsible for the regression, which narrows down to just one PR, #47323, which also makes sense. By reverting this change, we'll draw a final conclusion whether the regression is caused by illegal renders.

After this revert, the engine is in a temporary state due to the different behaviors between modes.

Pre-launch Checklist

  • I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • I read the Tree Hygiene wiki page, which explains my responsibilities.
  • I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
  • I listed at least one issue that this PR fixes in the description above.
  • I added new tests to check the change I am making or feature I am adding, or the PR is test-exempt. See testing the engine for instructions on writing and running engine tests.
  • I updated/added relevant documentation (doc comments with ///).
  • I signed the CLA.
  • All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

@dkwingsmt dkwingsmt merged commit 4325486 into flutter:main Jan 3, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jan 3, 2024
auto-submit bot pushed a commit to flutter/flutter that referenced this pull request Jan 3, 2024
…140905)

flutter/engine@98b72c7...c62bcff

2024-01-03 [email protected] [Impeller] Disable compute for Vulkan. (flutter/engine#49463)
2024-01-03 [email protected] Revert skiping illegal render in Dart (flutter/engine#49473)

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
@dkwingsmt dkwingsmt deleted the revert-skip-illegal-render branch January 3, 2024 20:27
dkwingsmt added a commit to dkwingsmt/engine that referenced this pull request Jan 11, 2024
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2 participants