[PVE-User] explain cpu usage

rickytato rickytato rickytato at r2consulting.it
Fri Nov 14 11:39:31 CET 2014


There are only 2 VM, with Debian 7, kernel 3.2, 64bit; VM have 24GB of ram.
Linux cn04-www1 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1 x86_64 GNU/Linux

VM are webserver with intensive http site (nginx/php-fpm):
 11:37:08 up 3 days, 12:22,  1 user,  load average: 6.17, 5.86, 5.98

No steal, no iowait in VM:
top - 11:38:05 up 3 days, 12:23,  1 user,  load average: 5.98, 5.82, 5.95
Tasks: 335 total,   6 running, 329 sleeping,   0 stopped,   0 zombie
%Cpu(s): 54.8 us,  6.1 sy,  0.0 ni, 37.0 id,  0.1 wa,  0.0 hi,  1.6 si,
 0.4 st

2014-11-14 11:33 GMT+01:00 Lindsay Mathieson <lindsay.mathieson at gmail.com>:

> On Fri, 14 Nov 2014 11:14:22 AM rickytato rickytato wrote:
> > atop: 600% user cpu anche 600% guest cpu..
> >
> > Are normal this value? Two VM have 7core (1socke/7core) and cpu host.
>
> What OS are the VM's?
>
> Have you looked at the CPU usage of processes in the VM's?
> --
> Lindsay
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