[Webkit-unassigned] [Bug 149471] New: Weirdly slow performance of raytracer

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Sep 22 11:32:18 PDT 2015


            Bug ID: 149471
           Summary: Weirdly slow performance of raytracer
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
               URL: https://nerget.com/rayjs-mt/rayjs.html?canvasSize=256,
                OS: Unspecified
            Status: NEW
          Keywords: NeedsRadar
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: oliver at apple.com

The raytracer i wrote many eons ago now runs really slowly.

If the raytracing code is pushed into a worker thread the speed improves dramatically:

This code has not changed for many years, so i assume a perf regression somewhere in the stack.

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