1489105 - 58.7 - 176.61% build times (android-4-0-armv7-api16, android-4-2-x86, android-5-0-aarch64) regression on push faba20592c04ce934cabf0284168733eb48baac0 (Tue Sep 4 2018)

Status: RESOLVED DUPLICATE of bug 1483990

(Firefox Build System :: Toolchains, defect)

Description

[Joel Maher ( :jmaher ) (UTC -8)]

We have detected a build metrics regression from push:

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?changeset=faba20592c04ce934cabf0284168733eb48baac0

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

Regressions:

177%  build times android-5-0-aarch64 opt taskcluster-m4.2xlarge     677.12 -> 1,873.02
151%  build times android-4-0-armv7-api16 opt taskcluster-m4.2xlarge 737.83 -> 1,855.33
150%  build times android-5-0-aarch64 opt taskcluster-c4.2xlarge     704.63 -> 1,759.99
148%  build times android-4-0-armv7-api16 opt taskcluster-c4.2xlarge 681.24 -> 1,689.52
145%  build times android-4-2-x86 opt taskcluster-c4.2xlarge         696.04 -> 1,706.45
 91%  build times android-4-2-x86 opt taskcluster-c5.4xlarge         499.73 -> 952.87
 59%  build times android-4-0-armv7-api16 opt taskcluster-c5.4xlarge 514.45 -> 816.45


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=15638

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

Comment 1

[Joel Maher ( :jmaher ) (UTC -8)]

this is a hard but to pinpoint, but I believe it is caused by bug 1488307.  We do so many types of builds on different instance sizes that it is hard to know what is the real root cause.

:glandium, could you let us know if bug 1488307 could affect android build times?