Open
Bug 1911408
Opened 7 months ago
Updated 7 months ago
Demo at (https://css.github.io/csso/csso.html ) spends large percent of 30s around GC
Categories
(Core :: JavaScript Engine, task, P2)
Core
JavaScript Engine
Tracking
()
NEW
People
(Reporter: mayankleoboy1, Unassigned)
References
(Blocks 2 open bugs, )
Details
Attachments
(1 file)
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8.50 MB,
text/plain
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Details |
Go to https://css.github.io/csso/csso.html
Copy-paste the attached sample text
AR:
Nightly: https://share.firefox.dev/3AllH8o (30s)
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Reporter | |
Comment 1•7 months ago
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Comment 2•7 months ago
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Do you have a profile? :)
Nevermind, missed it.
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Comment 3•7 months ago
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This is spending a lot of time hashing JS strings for string deduplication during minor GC.
See Also: → 1846297
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Comment 4•7 months ago
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In addition to comment 3, we're tenuring a lot of strings (60% of the nursery). Supporting pretenuring for strings (bug 1562816) would help a lot here.
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Reporter | |
Comment 5•7 months ago
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(FWIW, with semispace nursery enabled, demo takes 1/3rd the time : https://share.firefox.dev/3LRHerX (10s) )
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Updated•7 months ago
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Description
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