[Webkit-unassigned] [Bug 164940] New: Figure out what to do with the extraPauseRatio GC scheduling feature or get rid of it

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Nov 18 11:46:13 PST 2016


https://bugs.webkit.org/show_bug.cgi?id=164940

            Bug ID: 164940
           Summary: Figure out what to do with the extraPauseRatio GC
                    scheduling feature or get rid of it
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

I found that injecting a synthetic extra pause can help with GC convergence.  I also found that putting a ceiling on mutator utilization and resetting the initialTime at the end of each fixpoint iteration has the same effect.  It remains to be seen which feature is better, but the extraPauseRatio remains disabled for now because I'm starting to think that the MU ceiling is better.

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