If the video is encoded using a codec your hardware doesn't handle, it would be left up to the CPU to decode. Av1 can slow everything down to a crawl over CPU. You'd think the browser would be smart about the stream selection though.
Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
31–40 of 133 posts
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#32Sorry to hijack, but... I have weird issues with YouTube on my home PC. If I have a Chrome window with a YouTube video running to the side of my monitor, it always inevitably ends up freezing up the whole display. Ctrl+Alt+Delete and cancelling back in makes it go away briefly, however sometimes it can just keep freezing the monitor up constantly. The weird thing is, the PC (running Windows 11) has a powerful graphic…
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#33Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#34YouTube is pretty shocking in Firefox, even worse with an ad blocker.
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#35If the video is encoded using a codec your hardware doesn't handle, it would be left up to the CPU to decode. Av1 can slow everything down to a crawl over CPU. You'd think the browser would be smart about the stream selection though.
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#36https://github.com/polymorphicshade/Tubular
it also integrates SponsorBlock!
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#37Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#38I have not and don’t run an adblocker fwiw.
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#39If you have an adblocker it might be intentional.
That's not plausible. If someone sees, oh YouTube is making my computer hot, the last thing that's going to occur to them is, "wait let me try turning off my adblocker." When corporations try to change people's incentives, they are obvious about it, so people know what to change. In contrast, changing CPU usage on video playback for people who use adblockers and then not telling anyone is... just not a strategy that…
Re: Ask HN: Does anyone else notice YouTube causing 100% CPU usage and stattering?
#40YouTube is pretty shocking in Firefox, even worse with an ad blocker.