YouTube started to eat all the cores?

Question

YouTube

This was not the case before. Now you start the video - and all the cores are loaded at 100%. How are you, okay? Maybe something needs to be adjusted?
Ubuntu 16.04 Chromium latest

Answer 1

Most likely, when updating chromium and / or video drivers, hardware decoding (by a video card) was disabled, and now the percent is engaged in this. Check on the chrome://gpu tab , for more details
UPD It looks like I understand what the real problem is: YouTube has begun a massive transition to the av1 codec, its decoding is not accelerated by the video and loads the CPU quite noticeably. You can see which codec is being used by right-clicking on the video in Statistics for sysadmins. Personally, my Phenom II X4 [email protected] can't handle [email protected] in av1. As a temporary solution, you can enable av1 on https://www.youtube.com/testtube only for SD resolutions, then the videos will again be given in non-lag vp9/avc.