Hi,all
I want to get a relatively accurate cpu usage of a domain. I have a few
questions about virDomainGetInfo: struct virDomainInfo{ unsigned char state
: //the running state, one of virDomainState unsigned long maxMem :// the
maximum memory in KBytes allowed unsigned long memory :// the memory in
KBytes used by the domain unsigned short nrVirtCpu :// the number of virtual
CPUs for the domain unsigned long long cpuTime : //the CPU time used in
nanoseconds }
If a domain is assigned to 4 vcpus and my machine has 6 physical cores, then
the cpuTime in virDomainInfo should be the sum of cpu time of the 4 vcpus. When
I want to calculate the cpu usage, which of the following is more accurate?
1/4 * cpu time / total time or 4/6 * cpu time / total time or just cpu
time / total time
regardszhangzhang
_______________________________________________
libvirt-users mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/libvirt-users
