[libvirt-users] Domain vCPU threads affinity

Nikos Anastopoulos n.anastop at gmail.com
Wed Sep 5 12:48:45 UTC 2018


Hello,

According to the docs, vcpupin will use either cgroups or sched_setaffinity
to pin vcpu threads to cpus. How is this decision made?
I observe differences even on different hosts featuring the same version of
libvirtd (1.3.1): on one host vcpupin affects cpuset.cpus (cgroup), and on
the other it affects vcpu threads affinity (observed through taskset).

Thanks,
Nikos
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