Bugzilla

Perfherder has detected a browsertime performance regression from push [4d17ec8f84e1fb3f9ef92366b0fb7da9139e56bb](https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=4d17ec8f84e1fb3f9ef92366b0fb7da9139e56bb). As author of one of the patches included in that push, we need your help to address this regression.

### Regressions:

| **Ratio** | **Test** | **Platform** | **Options** | **Absolute values (old vs new)**| 
|--|--|--|--|--| 
| [3%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,3776998,1,13) | [google-mail](https://firefox-source-docs.mozilla.org/testing/perfdocs/raptor.html#google-mail-d) LastVisualChange | linux1804-64-shippable-qr | cold fission webrender | [4,241.67](https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/V7Jom7ciTYG9HlERTfqtLQ/runs/0/artifacts/public/test_info/browsertime-results.tgz) -> [4,356.67](https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/RbUtUl-_QyKsiiHRJiSDRQ/runs/0/artifacts/public/test_info/browsertime-results.tgz) |


Details of the alert can be found in the [alert summary](https://treeherder.mozilla.org/perfherder/alerts?id=35680), including links to graphs and comparisons for each of the affected tests. Please follow our [guide to handling regression bugs](https://wiki.mozilla.org/TestEngineering/Performance/Handling_regression_bugs) and **let us know your plans within 3 business days, or the offending patch(es) may be backed out** in accordance with our [regression policy](https://www.mozilla.org/en-US/about/governance/policies/regressions/).

If you need the profiling jobs you can trigger them yourself from treeherder job view or ask a sheriff to do that for you.

For more information on performance sheriffing please see our [FAQ](https://wiki.mozilla.org/TestEngineering/Performance/FAQ).

Perfherder has detected a browsertime performance regression from push [82de653dd2d9c8e9901f18993258d91a836a1a9a](https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=82de653dd2d9c8e9901f18993258d91a836a1a9a). As author of one of the patches included in that push, we need your help to address this regression.

### Regressions:

| **Ratio** | **Test** | **Platform** | **Options** | **Absolute values (old vs new)**| 
|--|--|--|--|--| 
| [4%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,3776998,1,13)  | [google-mail](https://firefox-source-docs.mozilla.org/testing/perfdocs/raptor.html#google-mail-d) LastVisualChange | linux1804-64-shippable-qr | cold fission webrender | 4,238.33 -> 4,386.67 |



Details of the alert can be found in the [alert summary](https://treeherder.mozilla.org/perfherder/alerts?id=35680), including links to graphs and comparisons for each of the affected tests. Please follow our [guide to handling regression bugs](https://wiki.mozilla.org/TestEngineering/Performance/Handling_regression_bugs) and **let us know your plans within 3 business days, or the offending patch(es) may be backed out** in accordance with our [regression policy](https://www.mozilla.org/en-US/about/governance/policies/regressions/).

If you need the profiling jobs you can trigger them yourself from treeherder job view or ask a sheriff to do that for you.

For more information on performance sheriffing please see our [FAQ](https://wiki.mozilla.org/TestEngineering/Performance/FAQ).