Open Bug 1145831 Opened 10 years ago Updated 2 years ago

Find out why treeherder results in long gc pauses, even with a small GC heap

Categories

(Core :: JavaScript: GC, defect)

defect

Tracking

()

People

(Reporter: terrence, Unassigned)

References

(Blocks 1 open bug)

Details

It's not as bad as tbpl was, but I've still noticed some appreciable lagginess after leaving several tabs open for a day, particularly with the debugger console open.
I'm really not sure how much this explains, but one thing that came out of the discussion is that currently whenever a new script is created, the devtools onNewScript handler calls findScripts (to avoid traversing just the new scripts with recursive getChildScripts calls, oddly enough.) That triggers a GC flush in order to iterate the heap. That means that eval("") will do a finishGC whenever the debugger console is open. See also bug 1145843.
Blocks: 1112352
Severity: normal → S3
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