[libvirt] [PATCH 03/17] create a new cgroup and move all hypervisor threads to the new cgroup
Hu Tao
hutao at cn.fujitsu.com
Tue Aug 7 07:13:30 UTC 2012
On Mon, Aug 06, 2012 at 03:18:07PM -0600, Eric Blake wrote:
> On 08/03/2012 12:36 AM, Hu Tao wrote:
> > From: Wen Congyang <wency at cn.fujitsu.com>
> >
> > Create a new cgroup and move all hypervisor threads to the new cgroup.
> > And then we can do the other things:
> > 1. limit only vcpu usage rather than the whole qemu
> > 2. limit for hypervisor threads(include vhost-net threads)
> >
> > Signed-off-by: Wen Congyang <wency at cn.fujitsu.com>
> > Signed-off-by: Tang Chen <tangchen at cn.fujitsu.com>
> > Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
> > ---
>
> >
> > +int qemuSetupCgroupForHypervisor(struct qemud_driver *driver,
> > + virDomainObjPtr vm)
> > +{
>
> > +
> > + for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
> > + if (!qemuCgroupControllerActive(driver, i)) {
> > + VIR_WARN("cgroup %d is not active", i);
> > + continue;
> > + }
>
> Do we need to do this for every controller, or only for the cpu and
> cpuacct controllers?
How about to add a third parameter to let the caller choose which cgroup
controller to set up?
--
Thanks,
Hu Tao
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