On Wed, Oct 6, 2010 at 6:54 AM, Nathan
March
<nathan@xxxxxxxxxxxxxxxxxxxx>
wrote:
Having a strange issue where snmp polling a vm for the
ssCpuRawIdle stats (and all the other raw cpu stats) shows up
as double:
snmpwalk -v 2c -c 'XXXX' nathanxen1 1.3.6.1.4.1.2021.11.53
&& sleep 60 && snmpwalk -v 2c -c 'XXXXXXX'
nathanxen1 1.3.6.1.4.1.2021.11.53
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 47631385
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 47643353
(47643353 - 47631385) / 6000 * 100 = 199%
Except that this VM has a single cpu. Polling regular machines
works fine with this logic and returns the expected numbers.
My guess is that it's kernel issue. Are you running newer
pv_ops kernel? If yes, you should ask to xen-devel. I've
checked RHEL's kernel-xen and newer xenlinux kernel, both
return the correct values.
--
Fajar
