1409021 - Provide hints to the chunk allocator task that the nursery could use up to X chunks soon.

Status: NEW

(Core :: JavaScript: GC, enhancement, P5)

Comment 1

[Paul Bone [:pbone]]

I've created this as a seperate bug from bug 1298018, since it's a different change to memory allocation and I'd prefer that it's affect on performance could be tracked seperately.

Comment 2

[Paul Bone [:pbone]]

Attachment: Bug 1409021 - Nursery can advise the chunk allocator of anticipated demand

Comment 3

[Paul Bone [:pbone]]

Try: https://treeherder.mozilla.org/#/jobs?repo=try&revision=ee3650a9df79e872fac37d8d00a842fe5fbf1d77
Talos: https://treeherder.mozilla.org/perf.html#/comparechooser?newProject=try&newRevision=ee3650a9df79e872fac37d8d00a842fe5fbf1d77

Comment 4

[Jon Coppeard (:jonco)]

I'm in two minds about this.  I kind of like the situation we have since your last set of patches where we won't allocate memory until it is needed.  And it may never be needed.  However this patch might help if we are allocating very quickly.

Comment 5

[Paul Bone [:pbone]]

Jon and I talked together and decided not to land this at this stage.  It doesn't make a measurable difference and there are pros and cons for having/not having it.

Comment 6

[Paul Bone [:pbone]]

Attachment: Bug 1409021 - Nursery can advise the chunk allocator of anticipated demand

Updated to apply cleanly.