[libvirt] [PATCH v1 rebase 0/6] disable cgroup cpuset

[Peter Krempa]

On 12/13/12 08:01, Hu Tao wrote:
> This is merely a rebased version, so still tagged with v1.
>
> The reason to disable cgroup cpuset by default is: currently,
> sub-directories of cgroup cpuset won't be auto-updated if
> cpu hot-plug happens. For example, if we now have 0-3,5-7 pcpus
> online, the value of /sys/fs/cgroup/cpuset/libvirt/qemu/mydom/cpuset.cpus
> is 0-3,5-7, then pcpu 4 is hot-plugged, but the value of cpuset.cpus
> is still 0-3,5-7. This will cause a problem that we can't pin
> to a hot-plugged pcpu.
>
> Users can still enable cpuset by editing qemu.conf.

CPU hotplug isn't really a common thing in hosts right now. I'd rather 
go for cpusets enabled by default and disabling them only if it poses 
problems.

Peter