I use Ubuntu 20.04 on my computer. When I use top -i command, I see one of the users consume a high amount of CPU for kswapd0. To terminate this, first of all I used ps -ax| grep kswapd0 and killed it. Then I used the following command to clear the page cache:
sync; echo 1 > /proc/sys/vm/drop_caches
And finally I restarted the computer. But, unfortunately, kswapd0 again appeared on top -i command with high CPU consumption after rebooting the system.
I do not know what is it and how can I permanently kill it. Thanks for your commands
