Hi,
My piece of code ( C langage) uses cgroups to retrieve counters related to cpu and memory
usage related to KVM guests hosted by the host where this code runs.
I noticed that depending on the O.S. running on the host , these counters are not found
at the same location :
CentOS 7 :
ls /sys/fs/cgroup/cpuacct/machine.slice/machine-qemu\\x2drhel6.0.scope/vcpu0
cgroup.clone_children cgroup.procs cpuacct.usage cpu.cfs_period_us
cpu.rt_period_us cpu.shares notify_on_release
cgroup.event_control cpuacct.stat cpuacct.usage_percpu cpu.cfs_quota_us
cpu.rt_runtime_us cpu.stat tasks
]#
RHEL6 :
ls /cgroup/cpuacct/libvirt/qemu/VM_Orion-1/vcpu0
cgroup.event_control cgroup.procs cpuacct.stat cpuacct.usage cpuacct.usage_percpu
notify_on_release tasks
1) May I assume that their meanings is identical ?
2) Is this difference due to the O.S. or to libvirt ?
3) I presume I've to check this point on Ubuntu , Debian and Fedora .
Thanks
J.P. Ribeauville
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