207154 2020-02-03 15:14:48 -0800 REGRESSION (r254428): [ macOS wk1 ] inspector/canvas/recording-2d-full.html became slower, flakily times out 2020-02-05 19:28:50 -0800 1 1 1 Unclassified WebKit Canvas WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=198459 https://bugs.webkit.org/show_bug.cgi?id=207145 InRadar P2 Normal --- 1 jacob_uphoff hi commit-queue dino hi webkit-bot-watchers-bugzilla webkit-bug-importer zalan oldest_to_newest 1614207 0 jacob_uphoff 2020-02-03 15:14:48 -0800 inspector/canvas/recording-2d-full.html This test has been a flaky timeout for all visible history on wk1 debug I was not able to reproduce issue with iteration runs History: https://results.webkit.org/?suite=layout-tests&test=inspector%2Fcanvas%2Frecording-2d-full.html&limit=50000&platform=ios&platform=mac Diff: --- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/inspector/canvas/recording-2d-full-expected.txt +++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/inspector/canvas/recording-2d-full-actual.txt @@ -1,3 +1,4 @@ +FAIL: Timed out waiting for notifyDone to be called Test that CanvasManager is able to record actions made to 2D canvas contexts. @@ -1013,19 +1014,4 @@ trace: 0: (anonymous function) 1: executeFrameFunction - 1: width = 2 - swizzleTypes: [Number] - trace: - 0: (anonymous function) - 1: executeFrameFunction - 74: (duration) - 0: height - trace: - 0: (anonymous function) - 1: executeFrameFunction - 1: height = 2 - swizzleTypes: [Number] - trace: - 0: (anonymous function) - 1: executeFrameFunction 1614208 1 webkit-bug-importer 2020-02-03 15:15:06 -0800 <rdar://problem/59127935> 1614213 2 389580 jacob_uphoff 2020-02-03 15:18:09 -0800 Created attachment 389580 Update Test Expectations 1614225 3 389580 ryanhaddad 2020-02-03 15:33:16 -0800 Comment on attachment 389580 Update Test Expectations Clearing flags on attachment: 389580 Committed r255607: <https://trac.webkit.org/changeset/255607> 1614434 4 ap 2020-02-03 23:02:17 -0800 > This test has been a flaky timeout for all visible history on wk1 debug You may be referring to internal test results, where this test was failing on slower bots. But there is actually a sharp start around r254428, where LFC integration patches landed. Enabling test times on the flakiness dashboard, I see a clear performance regression. It's not visible on release bots, but it's very clear on debug, ASan and GuardMalloc. I think that it's not just more complex assertions, but more memory allocations, which is why GuardMalloc suffered more. 1614627 5 ap 2020-02-04 10:35:30 -0800 *** Bug 207145 has been marked as a duplicate of this bug. *** 1615240 6 389860 hi 2020-02-05 13:30:12 -0800 Created attachment 389860 Patch 1615255 7 zalan 2020-02-05 13:47:00 -0800 you may wanna undo r255607. It's not slow anymore. 1615313 8 ap 2020-02-05 15:09:08 -0800 And r255591 too. 1615474 9 389860 hi 2020-02-05 18:21:50 -0800 Comment on attachment 389860 Patch (In reply to zalan from comment #7) > you may wanna undo r255607. It's not slow anymore. (In reply to Alexey Proskuryakov from comment #8) > And r255591 too. I think we still want these tests to be marked as slow, as they can sometimes take a while, especially in debug builds. The payload being sent to Web Inspector is very large (it has base64 dataURLs in it), as well as heavy use of async/await. 1615483 10 zalan 2020-02-05 18:38:12 -0800 (In reply to Devin Rousso from comment #9) > Comment on attachment 389860 [details] > Patch > > (In reply to zalan from comment #7) > > you may wanna undo r255607. It's not slow anymore. > (In reply to Alexey Proskuryakov from comment #8) > > And r255591 too. > I think we still want these tests to be marked as slow, as they can > sometimes take a while, especially in debug builds. The payload being sent > to Web Inspector is very large (it has base64 dataURLs in it), as well as > heavy use of async/await. Could we test the bots first and make the decision based on that? 1615506 11 389860 commit-queue 2020-02-05 19:28:48 -0800 Comment on attachment 389860 Patch Clearing flags on attachment: 389860 Committed r255895: <https://trac.webkit.org/changeset/255895> 1615507 12 commit-queue 2020-02-05 19:28:50 -0800 All reviewed patches have been landed. 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