https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203732
Bug ID: 203732
Summary: www/firefox: High CPU usage when playing HTML5 video
Product: Ports & Packages
Version: Latest
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Individual Port(s)
Assignee: [email protected]
Reporter: [email protected]
Assignee: [email protected]
Flags: maintainer-feedback?([email protected])
With default firefox 41.0.1,1 and alsa-plugins 1.0.29, firefox has high cpu
usage when playing html5 video.
With an i7-3612QM, firefox uses >130% CPU when playing 720p youtube video.
If I enable BUFSZ_P2 for audio/alsa-plugins, CPU usage reduces to ~50%.
If I switch to other backends for alsa(like pulse), CPU usage also reduces.
Please set the default value of BUFSZ_P2 to "ON" for alsa-plugins, or fix
alsa's oss backend.
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