Lots of slow script warnings on ARM64 (lack of Ion? does it need tuning?)
Categories
(Core :: JavaScript Engine: JIT, defect)
Tracking
()
People
(Reporter: overholt, Unassigned)
References
(Blocks 1 open bug)
Details
I am experiencing a lot of slow script dialogs in Nightly on Windows-on-ARM64. Should its heuristics be tuned for certain hardware/resource constraints? Or is it due to the lack of IonMonkey on ARM64?
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Reporter | |
Comment 1•6 years ago
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I mostly see this on GSuite properties; anecdotally, in descending order of frequency: Google Slides, Google Sheets, Google Docs.
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Comment 2•6 years ago
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JIT might be better component, or if not that, then XPConnect (which deals with JS interruption)
https://searchfox.org/mozilla-central/rev/03ebbdab952409640c6857d835d3040bf6f9e2db/js/xpconnect/src/XPCJSContext.cpp#577,615-632
Does tweaking the pref help https://searchfox.org/mozilla-central/rev/03ebbdab952409640c6857d835d3040bf6f9e2db/modules/libpref/init/all.js#3238
or is this about something else?
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Comment 4•6 years ago
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Andrew, now that IonMonkey can be turned on, do you see these notifications less/as frequently than/as without IonMonkey?
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Reporter | |
Comment 5•6 years ago
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(In reply to Nicolas B. Pierron [:nbp] from comment #4)
Andrew, now that IonMonkey can be turned on, do you see these notifications less/as frequently than/as without IonMonkey?
In the past 24 hours of having IonMonkey on, I haven't seen any slow script warnings :)
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Comment 6•6 years ago
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Based on comment 5, fixing this issue as "Works for Me".
Description
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