[Webkit-unassigned] [Bug 171019] New: Tune GC related JSC options for iOS
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Apr 19 16:02:17 PDT 2017
https://bugs.webkit.org/show_bug.cgi?id=171019
Bug ID: 171019
Summary: Tune GC related JSC options for iOS
Product: WebKit
Version: WebKit Nightly Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: msaboff at apple.com
Empirical tests show that iOS devices perform better with the options values overridden for a smaller number of cores in Options.cpp:overrideDefaults().
These are the options in question:
Options::maximumMutatorUtilization() = 0.6;
Options::concurrentGCMaxHeadroom() = 1.4;
Options::minimumGCPauseMS() = 1;
Options::useStochasticMutatorScheduler() = false;
<rdar://problem/31718721>
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