Date: Fri, 04 Mar 2016 19:06:10 +0000 From: bugzilla-noreply@freebsd.org To: gecko@FreeBSD.org Subject: [Bug 203732] www/firefox: High CPU usage when playing HTML5 video when audio/alsa-plugins is built with BUFSZ_P2=off Message-ID: <bug-203732-21738-RJlbtrepO4@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-203732-21738@https.bugs.freebsd.org/bugzilla/> References: <bug-203732-21738@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D203732 --- Comment #9 from Jan Beich <jbeich@FreeBSD.org> --- (In reply to Arto Pekkanen from comment #8) > ... when I play video via Firefox, X.org uses around 50% CPU. This means = that there is a LOT of data copying going on between Firefox and X.org.=20 What window resolution, video resolution, whether fullscreen or not? Better open a new bug and try various rendering toggles: - run a compositing manager (e.g., x11-wm/compton) - x11 driver (i915 vs. generic kms vs. vesa) or its options - gfx.xrender.enabled -> false - gfx.canvas.azure.backends -> skia - gfx.content.azure.backends -> skia (maybe buggy) - layers.offmainthreadcomposition.enabled -> false - layers.acceleration.force-enabled -> true (uses OpenGL) - BUNDLED_CAIRO -> off - GTK2 vs. GTK3 Firefox doesn't offload video decoding/scaling via VAAPI/XVideo unlike mpv/mplayer yet. However, OpenGL layers are scaled on hardware if available. --=20 You are receiving this mail because: You are the assignee for the bug.=
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