Open
Bug 1545578
Opened 7 years ago
Updated 4 years ago
Investigate loading early libraries with RTLD_DEEPBIND for WebRender talos wins
Categories
(Core :: Graphics: WebRender, enhancement, P3)
Tracking
()
NEW
| Performance Impact | low |
People
(Reporter: alexical, Unassigned)
References
(Blocks 1 open bug)
Details
(Keywords: perf)
This is on Linux, though it's unclear right now if it might have similar wins on Android. I've been toying around in nsXPCOMGlue lately investigating whether our ReadAheadLib that we do before loading libraries is correct or not, and in looking at dlopen I stumbled on the RTLD_DEEPBIND flag. I'm not sure what prompted me to try it, but I ran it through some perf tests on try and these are the results. (~5% win on tsvg_static for linux64-qr, and 3% win on tsvgx for linux64-qr, traded for a 2% loss on rasterflood_gradient on linux64). At this stage I'm really not certain why this difference is present, but it seems worth looking into.
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Updated•7 years ago
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Whiteboard: [qf] → [qf:investigate]
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Updated•7 years ago
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OS: Unspecified → Android
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Updated•4 years ago
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Performance Impact: --- → ?
Whiteboard: [qf:investigate]
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Updated•4 years ago
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Performance Impact: ? → P3
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Updated•4 years ago
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Severity: normal → S3
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Description
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