1469242 - 15.6 - 20.69% build times (linux64) regression on push 2eedbab9137b (Thu Jun 14 2018)

Status: RESOLVED WONTFIX

(Firefox Build System :: General, defect)

Description

[Ionuț Goldan [:igoldan]]

We have detected a build metrics regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=ecc310bb90bd1b0ba7ef550d3afcbaa35b68c699&tochange=2ea7e45aaaaf

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

Regressions:

 21%  build times linux64 opt taskcluster-m5.4xlarge tup     1,006.30 -> 1,214.49
 19%  build times linux64 opt taskcluster-c5d.4xlarge tup    916.91 -> 1,088.59
 18%  build times linux64 opt taskcluster-c4.4xlarge tup     1,126.10 -> 1,326.97
 17%  build times linux64 opt taskcluster-m5d.4xlarge tup    967.77 -> 1,131.27
 17%  build times linux64 opt taskcluster-c5.4xlarge tup     982.62 -> 1,145.55
 16%  build times linux64 opt taskcluster-m4.4xlarge tup     1,244.01 -> 1,438.14


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=13808

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

[Ionuț Goldan [:igoldan]]

Marking this as wontfix, based on Chris' comment:

"I landed patches Wednesday night (bug 1319228) to start doing more in the tup build (build rust code, link libxul), so I think these are all that. So this is expected as we bring the tup build up."