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Random seed 349875783 is failing half the time.

flutter run -v -d IR65S859OJ4HAY6P --profile lib/benchmark_collection.dart --dart-define=seed=349875783

I'm concerned that this sometimes passes, which points to some hidden timing bugs.

Random seed 349875783 is failing half the time.

```
flutter run -v -d IR65S859OJ4HAY6P --profile lib/benchmark_collection.dart --dart-define=seed=349875783
```
@jtmcdole jtmcdole force-pushed the markMicrobenchFlakey branch from aac1af9 to 3dd6d02 Compare January 13, 2025 21:50
@jtmcdole jtmcdole enabled auto-merge January 13, 2025 22:22
@jtmcdole jtmcdole added this pull request to the merge queue Jan 13, 2025
auto-merge was automatically disabled January 13, 2025 23:30

Pull Request is not mergeable

Merged via the queue into flutter:master with commit 0009cc3 Jan 13, 2025
177 checks passed
@jtmcdole jtmcdole deleted the markMicrobenchFlakey branch January 13, 2025 23:57
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 14, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 14, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 14, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 14, 2025
auto-submit bot pushed a commit to flutter/packages that referenced this pull request Jan 14, 2025
Roll Flutter from 72db8f6 to 40c2b86 (33 revisions)

flutter/flutter@72db8f6...40c2b86

2025-01-14 christopherfujino@gmail.com update changelog for 3.27.2 release (flutter/flutter#161569)
2025-01-14 tessertaha@gmail.com Fix `showLicensePage` does not inherit ambient `Theme` (flutter/flutter#161599)
2025-01-14 30870216+gaaclarke@users.noreply.github.com Added special case for fat width arcs (flutter/flutter#161255)
2025-01-14 matanlurey@users.noreply.github.com Replace `fetch `with `gclient sync`. (flutter/flutter#161565)
2025-01-14 engine-flutter-autoroll@skia.org Roll Packages from 3c3bc68 to d1fd623 (4 revisions) (flutter/flutter#161597)
2025-01-14 robert.ancell@canonical.com Remove unused method (flutter/flutter#161572)
2025-01-14 hbatagelo@gmail.com Fix crash when closing a window with `Alt+F4` in multi-win Flutter on Windows (flutter/flutter#161375)
2025-01-14 bruno.leroux@gmail.com Update InputDecoration.border documentation (flutter/flutter#161415)
2025-01-14 dkwingsmt@users.noreply.github.com [Web] Allow specifying the strategy on when to use <img> element to display images (flutter/flutter#159917)
2025-01-14 a-siva@users.noreply.github.com Roll Dart to  Version 3.7.0-323.0.dev (flutter/flutter#161567)
2025-01-14 goderbauer@google.com Use wildcards (flutter/flutter#161548)
2025-01-14 jmccandless@google.com Autocomplete Options Width (flutter/flutter#143249)
2025-01-13 jason-simmons@users.noreply.github.com Move the analyzer_benchmark to Mac arm64 devicelab bots (flutter/flutter#161405)
2025-01-13 matanlurey@users.noreply.github.com Remove references to `cirrus`, mostly in doc comments. (flutter/flutter#161529)
2025-01-13 flar@google.com Fix paths when running clang-tidy on git diffs (flutter/flutter#161496)
2025-01-13 yjbanov@google.com [web:a11y] treat empty tappables as buttons (flutter/flutter#161360)
2025-01-13 58190796+MitchellGoodwin@users.noreply.github.com Add route settings to CupertinoSheetRoute (flutter/flutter#161528)
2025-01-13 matanlurey@users.noreply.github.com Copy `linux_host_engine` as `linux_host_engine_test`, removing `archives: [...]`. (flutter/flutter#161532)
2025-01-13 matanlurey@users.noreply.github.com Remove last two references to Cirrus CI. (flutter/flutter#161530)
2025-01-13 codefu@google.com Mark `Mac_mokey microbenchmarks` as flakey (flutter/flutter#161550)
2025-01-13 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (#160241)" (flutter/flutter#161555)
2025-01-13 bkonyi@google.com Add validator execution times to `flutter doctor --verbose` (flutter/flutter#158124)
2025-01-13 matanlurey@users.noreply.github.com Explain more specifically how to use `flutter drive`/what it does (flutter/flutter#161450)
2025-01-13 dhankechakishan@gmail.com Fixed repeated strings for incompatible Gradle or AGP version in `create` command (flutter/flutter#161223)
2025-01-13 matanlurey@users.noreply.github.com Remove `WEB_SHARD_COUNT`, which no longer exists post-Cirrus. (flutter/flutter#161527)
2025-01-13 chinmaygarde@google.com [Impeller] Update guidance on prebuilt artifacts. (flutter/flutter#161251)
2025-01-13 flar@google.com Migrate DisplayList unit tests to DL/Impeller geometry classes (flutter/flutter#161453)
2025-01-13 jmccandless@google.com Context menu button callback docs clarification (flutter/flutter#161451)
2025-01-13 43089218+chika3742@users.noreply.github.com Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (flutter/flutter#160241)
2025-01-13 codefu@google.com Udpate documentation on the third_party directories (flutter/flutter#161407)
2025-01-13 matanlurey@users.noreply.github.com Propagate environment variables when `flutter drive` is invoked. (flutter/flutter#161452)
2025-01-13 34871572+gmackall@users.noreply.github.com Convert base application name handling to kotlin source (start of FGP kt conversion) (flutter/flutter#155963)
2025-01-13 jonahwilliams@google.com [Impeller] remove API 30 restriction for SurfaceControl testing. (flutter/flutter#161438)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: 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:
...
maheshj01 pushed a commit to maheshj01/flutter that referenced this pull request Jan 15, 2025
Random seed 349875783 is failing half the time.

```
flutter run -v -d IR65S859OJ4HAY6P --profile lib/benchmark_collection.dart --dart-define=seed=349875783
```

I'm concerned that this sometimes passes, which points to some hidden
timing bugs.
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 12, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 13, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 13, 2025
@jmagman
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jmagman commented Feb 21, 2025

@jtmcdole Is there an issue tracking this? How will we know when we can turn this back on in prod?

flutter/.ci.yaml

Line 4666 in 4d50910

bringup: true # Flaky: codefu

@jtmcdole
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Flakey should still run in prod. It's bring up.

@jmagman
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jmagman commented Feb 21, 2025

@jtmcdole I meant is there an issue tracking "Random seed 349875783 is failing half the time" so when it's fixed we know we can mark this build no longer bringup so it runs in the prod pool again (and not staging)?

@jtmcdole
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I hadn't realized "bringup: true" did staging pool:

https://ci.chromium.org/ui/p/flutter/builders/staging/Mac_mokey%20microbenchmarks/747/overview
https://ci.chromium.org/ui/p/flutter/builders/staging/Mac_ios%20microbenchmarks_ios/6776/overview

There's a bug for me to get the benchmarks restartable. That would get around this problem. There isn't something specific about this seed value though.

@harri35
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harri35 commented Mar 6, 2025

Small PR to link the issue for easier lookup: #164694
The followup issue itself is here: #156506

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 6, 2025
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 7, 2025
androidseb pushed a commit to androidseb/packages that referenced this pull request Jun 8, 2025
Roll Flutter from 72db8f6 to 40c2b86 (33 revisions)

flutter/flutter@72db8f6...40c2b86

2025-01-14 christopherfujino@gmail.com update changelog for 3.27.2 release (flutter/flutter#161569)
2025-01-14 tessertaha@gmail.com Fix `showLicensePage` does not inherit ambient `Theme` (flutter/flutter#161599)
2025-01-14 30870216+gaaclarke@users.noreply.github.com Added special case for fat width arcs (flutter/flutter#161255)
2025-01-14 matanlurey@users.noreply.github.com Replace `fetch `with `gclient sync`. (flutter/flutter#161565)
2025-01-14 engine-flutter-autoroll@skia.org Roll Packages from 3c3bc68 to d1fd623 (4 revisions) (flutter/flutter#161597)
2025-01-14 robert.ancell@canonical.com Remove unused method (flutter/flutter#161572)
2025-01-14 hbatagelo@gmail.com Fix crash when closing a window with `Alt+F4` in multi-win Flutter on Windows (flutter/flutter#161375)
2025-01-14 bruno.leroux@gmail.com Update InputDecoration.border documentation (flutter/flutter#161415)
2025-01-14 dkwingsmt@users.noreply.github.com [Web] Allow specifying the strategy on when to use <img> element to display images (flutter/flutter#159917)
2025-01-14 a-siva@users.noreply.github.com Roll Dart to  Version 3.7.0-323.0.dev (flutter/flutter#161567)
2025-01-14 goderbauer@google.com Use wildcards (flutter/flutter#161548)
2025-01-14 jmccandless@google.com Autocomplete Options Width (flutter/flutter#143249)
2025-01-13 jason-simmons@users.noreply.github.com Move the analyzer_benchmark to Mac arm64 devicelab bots (flutter/flutter#161405)
2025-01-13 matanlurey@users.noreply.github.com Remove references to `cirrus`, mostly in doc comments. (flutter/flutter#161529)
2025-01-13 flar@google.com Fix paths when running clang-tidy on git diffs (flutter/flutter#161496)
2025-01-13 yjbanov@google.com [web:a11y] treat empty tappables as buttons (flutter/flutter#161360)
2025-01-13 58190796+MitchellGoodwin@users.noreply.github.com Add route settings to CupertinoSheetRoute (flutter/flutter#161528)
2025-01-13 matanlurey@users.noreply.github.com Copy `linux_host_engine` as `linux_host_engine_test`, removing `archives: [...]`. (flutter/flutter#161532)
2025-01-13 matanlurey@users.noreply.github.com Remove last two references to Cirrus CI. (flutter/flutter#161530)
2025-01-13 codefu@google.com Mark `Mac_mokey microbenchmarks` as flakey (flutter/flutter#161550)
2025-01-13 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (#160241)" (flutter/flutter#161555)
2025-01-13 bkonyi@google.com Add validator execution times to `flutter doctor --verbose` (flutter/flutter#158124)
2025-01-13 matanlurey@users.noreply.github.com Explain more specifically how to use `flutter drive`/what it does (flutter/flutter#161450)
2025-01-13 dhankechakishan@gmail.com Fixed repeated strings for incompatible Gradle or AGP version in `create` command (flutter/flutter#161223)
2025-01-13 matanlurey@users.noreply.github.com Remove `WEB_SHARD_COUNT`, which no longer exists post-Cirrus. (flutter/flutter#161527)
2025-01-13 chinmaygarde@google.com [Impeller] Update guidance on prebuilt artifacts. (flutter/flutter#161251)
2025-01-13 flar@google.com Migrate DisplayList unit tests to DL/Impeller geometry classes (flutter/flutter#161453)
2025-01-13 jmccandless@google.com Context menu button callback docs clarification (flutter/flutter#161451)
2025-01-13 43089218+chika3742@users.noreply.github.com Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (flutter/flutter#160241)
2025-01-13 codefu@google.com Udpate documentation on the third_party directories (flutter/flutter#161407)
2025-01-13 matanlurey@users.noreply.github.com Propagate environment variables when `flutter drive` is invoked. (flutter/flutter#161452)
2025-01-13 34871572+gmackall@users.noreply.github.com Convert base application name handling to kotlin source (start of FGP kt conversion) (flutter/flutter#155963)
2025-01-13 jonahwilliams@google.com [Impeller] remove API 30 restriction for SurfaceControl testing. (flutter/flutter#161438)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: 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:
...
FMorschel pushed a commit to FMorschel/packages that referenced this pull request Jun 9, 2025
Roll Flutter from 72db8f6 to 40c2b86 (33 revisions)

flutter/flutter@72db8f6...40c2b86

2025-01-14 christopherfujino@gmail.com update changelog for 3.27.2 release (flutter/flutter#161569)
2025-01-14 tessertaha@gmail.com Fix `showLicensePage` does not inherit ambient `Theme` (flutter/flutter#161599)
2025-01-14 30870216+gaaclarke@users.noreply.github.com Added special case for fat width arcs (flutter/flutter#161255)
2025-01-14 matanlurey@users.noreply.github.com Replace `fetch `with `gclient sync`. (flutter/flutter#161565)
2025-01-14 engine-flutter-autoroll@skia.org Roll Packages from 3c3bc68 to d1fd623 (4 revisions) (flutter/flutter#161597)
2025-01-14 robert.ancell@canonical.com Remove unused method (flutter/flutter#161572)
2025-01-14 hbatagelo@gmail.com Fix crash when closing a window with `Alt+F4` in multi-win Flutter on Windows (flutter/flutter#161375)
2025-01-14 bruno.leroux@gmail.com Update InputDecoration.border documentation (flutter/flutter#161415)
2025-01-14 dkwingsmt@users.noreply.github.com [Web] Allow specifying the strategy on when to use <img> element to display images (flutter/flutter#159917)
2025-01-14 a-siva@users.noreply.github.com Roll Dart to  Version 3.7.0-323.0.dev (flutter/flutter#161567)
2025-01-14 goderbauer@google.com Use wildcards (flutter/flutter#161548)
2025-01-14 jmccandless@google.com Autocomplete Options Width (flutter/flutter#143249)
2025-01-13 jason-simmons@users.noreply.github.com Move the analyzer_benchmark to Mac arm64 devicelab bots (flutter/flutter#161405)
2025-01-13 matanlurey@users.noreply.github.com Remove references to `cirrus`, mostly in doc comments. (flutter/flutter#161529)
2025-01-13 flar@google.com Fix paths when running clang-tidy on git diffs (flutter/flutter#161496)
2025-01-13 yjbanov@google.com [web:a11y] treat empty tappables as buttons (flutter/flutter#161360)
2025-01-13 58190796+MitchellGoodwin@users.noreply.github.com Add route settings to CupertinoSheetRoute (flutter/flutter#161528)
2025-01-13 matanlurey@users.noreply.github.com Copy `linux_host_engine` as `linux_host_engine_test`, removing `archives: [...]`. (flutter/flutter#161532)
2025-01-13 matanlurey@users.noreply.github.com Remove last two references to Cirrus CI. (flutter/flutter#161530)
2025-01-13 codefu@google.com Mark `Mac_mokey microbenchmarks` as flakey (flutter/flutter#161550)
2025-01-13 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (#160241)" (flutter/flutter#161555)
2025-01-13 bkonyi@google.com Add validator execution times to `flutter doctor --verbose` (flutter/flutter#158124)
2025-01-13 matanlurey@users.noreply.github.com Explain more specifically how to use `flutter drive`/what it does (flutter/flutter#161450)
2025-01-13 dhankechakishan@gmail.com Fixed repeated strings for incompatible Gradle or AGP version in `create` command (flutter/flutter#161223)
2025-01-13 matanlurey@users.noreply.github.com Remove `WEB_SHARD_COUNT`, which no longer exists post-Cirrus. (flutter/flutter#161527)
2025-01-13 chinmaygarde@google.com [Impeller] Update guidance on prebuilt artifacts. (flutter/flutter#161251)
2025-01-13 flar@google.com Migrate DisplayList unit tests to DL/Impeller geometry classes (flutter/flutter#161453)
2025-01-13 jmccandless@google.com Context menu button callback docs clarification (flutter/flutter#161451)
2025-01-13 43089218+chika3742@users.noreply.github.com Match CupertinoPageTransitionsBuilder animation duration to CupertinoPageRoute (flutter/flutter#160241)
2025-01-13 codefu@google.com Udpate documentation on the third_party directories (flutter/flutter#161407)
2025-01-13 matanlurey@users.noreply.github.com Propagate environment variables when `flutter drive` is invoked. (flutter/flutter#161452)
2025-01-13 34871572+gmackall@users.noreply.github.com Convert base application name handling to kotlin source (start of FGP kt conversion) (flutter/flutter#155963)
2025-01-13 jonahwilliams@google.com [Impeller] remove API 30 restriction for SurfaceControl testing. (flutter/flutter#161438)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-packages
Please CC stuartmorgan@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Packages: 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:
...
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4 participants