[Webkit-unassigned] [Bug 143385] New: Add Options::jitPolicyScale() as a single knob to make all compilations happen sooner

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=143385

            Bug ID: 143385
           Summary: Add Options::jitPolicyScale() as a single knob to make
                    all compilations happen sooner
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

For debugging purposes, sometimes, we want to be able to make compilation happen sooner to see if we can accelerate the manifestation of certain events / bugs.  Currently, in order to achieve this, we'll have to tweak multiple JIT thresholds which make up the compilation policy.  Let's add a single knob that can tune all the thresholds up / down proportionately so that we easily can tweak how soon compilation occurs.

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