Date: Thu, 6 Aug 2020 20:38:23 -0400 From: "Mikhail T." <mi+t@aldan.algebra.com> To: gecko@freebsd.org Subject: Firefox playing videos takes too much CPU Message-ID: <2685ecb1-5cd8-a77f-5146-eba1b37099a8@aldan.algebra.com>
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Hello! I noticed recently, how much CPU playing a video takes... A firefox-process, playing a modest 1080p clip (such as this <https://www.youtube.com/watch?v=DrJY_-BIasY>) for example, will show in top as taking between 150-160% CPU (and mine are E5-1620 0 @ 3.60GHz), with Xorg taking /another/ 30%. If I pause the video, CPU-usage drops down to single-digits, so it definitely is the playback... If I download that same video (using youtube-dl), and give it to mplayer, the playback will only cost about 60% CPU for the mplayer itself -- plus 20% for the Xorg. Mplayer using the simple "x11" video-output, nothing particularly fancy. The video card is an old Radeon (5670/5690/5730). Is there a good explanation for this discrepancy? Thank you! Yours, -mi
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