Closed Bug 1444514 Opened 6 years ago Closed 6 years ago

5.48 - 6.93% Explicit Memory / Heap Unclassified / JS (osx-10-10) regression on push 79044302abd1165ed375708201090281972d32d8 (Wed Mar 7 2018)


(WebExtensions :: General, defect)

53 Branch
Not set


(Not tracked)



(Reporter: jmaher, Unassigned)



(Keywords: perf, regression)

We have detected an awsy regression from push:

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


  7%  Heap Unclassified osx-10-10 opt stylo     67,090,151.29 -> 71,737,381.69
  7%  JS osx-10-10 opt stylo                    99,875,167.82 -> 106,742,142.90
  5%  Explicit Memory osx-10-10 opt stylo       322,208,479.34 -> 339,854,885.04

You can find links to graphs and comparison views for each of the above tests at:

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:
Component: Untriaged → Graphics: Layers
Product: Firefox → Core
:kmag, I see you authored 2 of the 3 patches in the changeset:

after retriggers that changeset looks to be the cause of a few regressions in memory.  Can you take a look at this?
Flags: needinfo?(kmaglione+bmo)
This is expected. It's the result of needing to create an extra content process to host extension code. We already decided that this was acceptable when we shipped OOP extensions on Windows.
Closed: 6 years ago
Component: Graphics: Layers → WebExtensions: General
Product: Core → Toolkit
Resolution: --- → WONTFIX
Flags: needinfo?(kmaglione+bmo)
Product: Toolkit → WebExtensions
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