[Webkit-unassigned] [Bug 173051] New: Poor performance with asm.js

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jun 7 03:40:26 PDT 2017


            Bug ID: 173051
           Summary: Poor performance with asm.js
           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: ashley at scirra.com

Safari doesn't support any open codecs so we're using an asm.js compile of ffmpeg to decode Opus audio here: https://www.scirra.com/labs/audiotest/

The page is very slow to load on an iPad Air 2, despite not processing much data. It only decodes 23 files totalling ~750kb of compressed data. However this considerably slows down loading times for web content that uses this approach.

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