Did not help.
But today I was on the server at this moment.
avg CPU usage was 50%. One CT with cpulimit 0.8 and cpuunits 8 start to use 100% of 1 core (see in top). load average was 200. When kill the process LA stay lower. Then again have high LA, and
NMI watchdog: BUG: soft lockup - CPU#5...
We use and VM too. But CT is cheeper. And the staff have access to guest system, so we can help to our client faster.
Also we can share the drive, and we can't do it on KVM and save the snapshot at that time.
CT use smaller memory then VM.
And it is a simpler to setup CT from template and make...