[Webkit-unassigned] [Bug 260468] XSLT can take minutes to render with many <audio> elements

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Aug 22 13:02:02 PDT 2023


Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
          Component|XML                         |Media
                 CC|                            |ap at webkit.org,
                   |                            |eric.carlson at apple.com,
                   |                            |jer.noble at apple.com,
                   |                            |simon.fraser at apple.com,
                   |                            |zalan at apple.com
            Summary|XSLT can take minutes to    |XSLT can take minutes to
                   |render with <audio>         |render with many <audio>
                   |elements                    |elements

--- Comment #1 from Alexey Proskuryakov <ap at webkit.org> ---
It is a known issue that rendering a page with many media elements is pathologically slow, but I cannot find the tracking bug now.

Doing an outrageous amount of work under HTMLMediaElement::ensureMediaControls() -> HTMLMediaElement::setupAndCallJS() -> ... jsCSSStyleDeclaration_propertyValueForCamelCasedIDLAttribute() ... Document::updateStyleIfNeeded().

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