1845655 - Fix the TestPHCExhaustion test

Status: RESOLVED FIXED

(Core :: Memory Allocator, task)

Description

[Paul Bone [:pbone]]

TestPHCExhaustion was failing intermittently and will be disabled in Bug 1845017. To make it work properly there are two problems that need fixing.

1. We need to be able to adjust PHC's probabilities at runtime to lower kAvePageReuseDelay and improve the reilability of this test.

2. Investigate the other intermittent failure https://treeherder.mozilla.org/logviewer?job_id=423880091&repo=autoland&lineNumber=2029

Comment 1

[Paul Bone [:pbone]]

Attachment: Bug 1845655 - Fix and enable PHCExhaustion test r=glandium

Comment 2

[Paul Bone [:pbone]]

Attachment: Bug 1845655 - PHC Exhaustion test is more reliable r=glandium

PHC's stats can be used to determine the exact number of free PHC slots
which can make this test much more reliable and simpler.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/a2c2343e7033
https://hg.mozilla.org/integration/autoland/rev/4bb41ed65601
Fix and enable PHCExhaustion test r=glandium
https://github.com/mozilla-firefox/firefox/commit/6f8fc8dc937c
https://hg.mozilla.org/integration/autoland/rev/588b002c5e6c
PHC Exhaustion test is more reliable r=glandium

Comment 4

[agoloman]

https://hg.mozilla.org/mozilla-central/rev/4bb41ed65601
https://hg.mozilla.org/mozilla-central/rev/588b002c5e6c