High CPU load playing youtube video
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Yesterday I spent some time on youtube while on battery. I found that when playing videos my fan was on all the time and of course battery drained.
Opening the same videos in firefox resolved the issue for me. Am I the only one with this problem?
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can you give system and browser info? and did you try disabling extensions?
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I'm working on an MBP 16", OSX 10.15.4 (19E287).
I hardly use any extensions, but, no, I have not tried disabling all of them.There's no pattern related to particular vidoes I could find. It seems rather random, e.g. I just reopened a video I watched yesterday and which had the fan blowing, but I was unable to reproduce this now.
However as moving my youtube tabs to firefox yesterday helped I'd relate the high CPU usage to playing the videos on Vivaldi.
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Any example videos?
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It looks like the problem is not really related to videos. Having just restarted Vivaldi a few minutes ago I am now at high load again,even though not having youtube open and not having even gone through my tab list yet:
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@mbert
Hi, is this output of the Vivaldi task manger?
If yes it show only part of CPU usage, 100% is only one core of your 6 core system.
Check you system process manager.
There was a thread about high CPU usage lately and on user clear that up for me.Cheers, mib
P.S. I think about a feature request to change this. -
No, this is my OS Activity Monitor. I pulled it up because my fan suddenly started going.
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Install this extension and block 60fps/VP8/VP9 and AV1 in the settings.
This helped me to reduce my CPU usage to a minimum. -
@Dany87 Hi. I don't want to disable 60 fps. There must be an another solution.
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@Gwen-Dragon I have done it all. But nothing changed since then.
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@Gwen-Dragon VB-75301 and VB-75276
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@Gwen-Dragon I use lastest version BigSur 11.1
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Hi there, I've got the same problem. MBP 2015 15 16 GB RAM. Running OS Big Sur 11.1 (and also had in OS X Mojave and Catalina) Any video content increases the CPU. See Screenshot.
Best regards from Germany!
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This post is deleted! -
What is most weird about playing any videos in Vivaldi is that on full screen there is no issue, but without maximizing the video CPU load is crazy (Air last 2 hours max of video playing not in full screen and 8 hours with video on full screen). I see this since Catalina (I used Catalina only short time 2 month ago, now on Big Sur) and no update of Vivaldi changed this behavior.
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Have you installed the recent Big Sur updates? (11.2.3 is the current Big Sur as of this comment)
I know the video codec used and the resolution and playback speed can affect CPU/GPU usage (I remember when Youtube first had 1080 for quality and most computers it caused a CPU spike).
You can right click on a Youtube video and the stats for nerds will list the codec being used for both video and audio.
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Interesting because recently I've noticed very high CPU usage too. In my case, it was watch watching a youtube live stream. Maybe it happens with other youtube videos too, but most of those I watch are not all that long (10-30 minutes) while the live stream may last 3 hours or so! My impression was that it tended to get worse over time.
I have a 2018 Mac Mini
3 GHz 6 core intel i5
Big Sur 11.2.3Using activity monitor, I'll see all 6 cores get pretty high (I do have other apps open, but normally they may be 4 lines or less).
Looking at more detailed Activity monitor cpu usage, I'll see Vivaldi renderer or Vivaldi help going over 70% (at least one of those two). Sometimes over 120%. And the other one will be over 40%. Plus there are more than one item with the same name that is also notably high.
I've had times that everything just responded slowly when these numbers go high. I guess I should do some testing just watching regular videos to see if it happens with those as well as live streams. Oh, I am usually watching the live stream at 1080p. My internet allows for 1 gb download so that shouldn't be a problem.
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I reinstall macos lastest version, and vivaldi is lastest version too, but when I open a youtube video fans are going crazy, cpu temp is 95 . I have sent bug reports but nothing changed.
Macos 11.2.3
Vivaldi 3.7.2218.45 (Stable channel) (x86_64)
MacBook Pro 2019 -
@ardatuna Have you tried clearing the browser cache and then restarting Vivaldi, also what resolution of the video?
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@Chas4 Yes. Video if video is 720 or higher.
