Bug: 3.78 - 2.01% pdfpaint issue8092.pdf / pdfpaint issue7115.pdf + 1 more (Windows) regression on Thu May 2 2024
Status: RESOLVED
Priority: --
Resolution: INVALID
Created: 2024-05-13 12:36:03+00:00
Resolved: 2024-05-16 20:40:08+00:00

Perfherder has detected a talos performance regression from push [cd7dbc3e8ad0e329f5ae2403158244078e54ebcf](https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=cd7dbc3e8ad0e329f5ae2403158244078e54ebcf). 

The changes causing this regression were backedout, no action needed from the author. This bug's purpose is to track and acknowledge the change summary of the alert. 

### Regressions:

| **Ratio** | **Test** | **Platform** | **Options** | **Absolute values (old vs new)** |  
|--|--|--|--|--| 
| [4%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5096599,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue8092.pdf | windows10-64-shippable-qr | e10s fission stylo webrender | 185.10 -> 192.10 | 
| [3%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5096586,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue7855.pdf | windows10-64-shippable-qr | e10s fission stylo webrender | 195.51 -> 202.29 | 
| [2%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5096461,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue7115.pdf | windows10-64-shippable-qr | e10s fission stylo webrender | 181.81 -> 185.47 | 
### Improvements:

| **Ratio** | **Test** | **Platform** | **Options** | **Absolute values (old vs new)** |  
|--|--|--|--|--| 
| [3%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5094833,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue5421.pdf | linux1804-64-shippable-qr | e10s fission stylo webrender | 248.96 -> 241.82 | 
| [3%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5094807,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue4706.pdf | linux1804-64-shippable-qr | e10s fission stylo webrender | 263.10 -> 256.27 | 
| [2%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5094823,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue5070.pdf | linux1804-64-shippable-qr | e10s fission stylo webrender | 283.56 -> 276.55 | 
| [2%](https://treeherder.mozilla.org/perfherder/graphs?timerange=1209600&series=autoland,5094810,1,1)  | [pdfpaint](https://firefox-source-docs.mozilla.org/testing/perfdocs/talos.html#pdfpaint) issue4801.pdf | linux1804-64-shippable-qr | e10s fission stylo webrender | 266.84 -> 260.46 | 


Details of the alert can be found in the [alert summary](https://treeherder.mozilla.org/perfherder/alerts?id=81), including links to graphs and comparisons for each of the affected tests.

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

You can run these tests on try with `./mach try perf --alert 81`

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