1577747 - 0.76 - 10.73% build times / installer size (osx-shippable, windows2012-32-shippable, windows2012-64-shippable) regression on push 14a7894321177ca9c0e4b6fb7347e3f281fa6e92 (Wed August 28 2019)

Status: RESOLVED WONTFIX

(Firefox Build System :: Task Configuration, defect)

Description

[Florin Strugariu [:Bebe]]

We have detected a build metrics regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=14a7894321177ca9c0e4b6fb7347e3f281fa6e92

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

Regressions:

11% build times windows2012-64-shippable opt instrumented taskcluster-c5.4xlarge 1,605.33 -> 1,777.54
10% build times windows2012-32-shippable opt instrumented taskcluster-c4.4xlarge 2,024.51 -> 2,217.51
1% installer size osx-shippable opt nightly 79,830,247.17 -> 80,436,471.50

You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=22867

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

[Mike Hommey [:glandium]]

This was expected, as we re-enabled code that had been disabled. If you go back far enough, you'll see the build times were even higher before we disabled.

Comment 2

[Florin Strugariu [:Bebe]]

Thanks for the update!!!

I will mark the alert accordingly