1588034 - 2.04 - 2.07% compiler_metrics num_static_constructors (windows2012-32, windows2012-64, windows2012-aarch64) regression on push b0adb7067dffabf9c6e5b1255a8ac4be8768d32b (Thu October 10 2019)

Status: RESOLVED DUPLICATE of bug 1584240

(Firefox Build System :: Toolchains, defect)

Description

[Alexandru Ionescu (needinfo me) [:alexandrui]]

We have detected a build metrics regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=b0adb7067dffabf9c6e5b1255a8ac4be8768d32b

As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

2% compiler_metrics num_static_constructors windows2012-32 debug 145.00 -> 148.00
2% compiler_metrics num_static_constructors windows2012-64 debug 145.00 -> 148.00
2% compiler_metrics num_static_constructors windows2012-aarch64 debug aarch64 146.00 -> 149.00
2% compiler_metrics num_static_constructors windows2012-64 debug fuzzing 147.00 -> 150.00

You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=23415

On the page above you can see an alert for each affected platform as well as a link to a graph showing the history of scores for this test. There is also a link to a treeherder page showing the jobs in a pushlog format.

To learn more about the regressing test(s), please see: https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Automated_Performance_Testing_and_Sheriffing/Build_Metrics

*** Please let us know your plans within 3 business days, or the offending patch(es) will be backed out! ***

Comment 1

[(Away)]

This change was a re-landing so I am marking this bug as duplicate of the regression from the first landing.