2062958 - Clear mark bits for stolen chunks immediately if possible

Status: RESOLVED FIXED

(Core :: JavaScript: GC, task, P3)

Description

[Jon Coppeard (:jonco)]

Following on from bug 2045637, we can clear the mark bits in stolen chunks immediately outside concurrent marking builds. This is more efficient since we don't have to iterate all the chunk lists later on.

For concurrent marking builds we can perhaps optimise this later.

Comment 1

[Jon Coppeard (:jonco)]

Attachment: Bug 2062958 - Clear mark bits in stolen chunks immediately outside concurrent marking builds r?sfink

As per the comments we only need to defer clearing the mark bits in stolen
chunks if concurrent marking can be happening. It's best to avoid this if
possible because it means we need to iterate all the chunks.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/ffe404accb90
https://hg.mozilla.org/integration/autoland/rev/d576a10c3c11
Clear mark bits in stolen chunks immediately outside concurrent marking builds r=sfink

Comment 3

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/d576a10c3c11