[libvirt] cpu values

"Tavares, John" <John_Tavares@xxxxxxx> · Thu, 11 Mar 2010 16:46:45 -0600

I am trying to compare the results that I am getting on a
RHEL 5.3 server using xm list (using libvirt.so.0.3.3) against both my Dom0 and
my Linux DomU on the same server to see if the cpu values match to what the kernel
is reporting in /proc/stat.  Here is an example of what I am seeing on
both:

From Dom0:

$ sudo /usr/sbin/xm list;cat /proc/stat | grep cpu  

Name                                     
ID Mem(MiB) VCPUs
 State   Time(s)

Domain-0                                  
0      746     1 r----- 
73722.3

rhel5_01                       
           1     
255     1 -b----  18558.4

cpu  412542 1477862 522101 1111350509 347838 0 262
487234

cpu0 412542 1477862 522101 1111350509 347838 0 262 487234

From DomU (rhelt_01):

$ cat /proc/stat | grep cpu  

cpu  138184 148634 246128 924538039 467802 133 178
339822

cpu0 138184 148634 246128 924538039 467802 133 178 339822

The results of the two do not appear close.  Should
the cpu times match, is this a bug, or does Time mean something different than
I think it does??

Thanks.

John

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