I'm having a problem with kernel using much cpu on latest ubuntu 21.10.
the kworker uses actually 10% of CPU which is 80% on one core
I've tried to do this workaround: https://www.linuxquestions.org/questions/linux-software-2/high-cpu-usage-by-kworker-4175563563/ but matter what I did, I can't modify the dirty_writeback_centisecs file. Sometimes after some "Main components update" or GPU driver update problem goes away, but then it returns, and I have no idea what to do.