maintainer-feedback requested: [Bug 203732] www/firefox: High CPU usage when playing HTML5 video

[bugzilla-noreply at freebsd.org]

Henry Hu <henry.hu.sh at gmail.com> has reassigned Bugzilla Automation
<bugzilla at FreeBSD.org>'s request for maintainer-feedback to gecko at FreeBSD.org:
Bug 203732: www/firefox: High CPU usage when playing HTML5 video
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203732



--- Description ---
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.