[libvirt] lxc: dominfo.cpuTime support using cgroups.cpuacct
Daniel P. Berrange
berrange at redhat.com
Fri Mar 6 14:33:07 UTC 2009
On Fri, Mar 06, 2009 at 11:30:26PM +0900, Ryota Ozaki wrote:
> Hi Daniel,
>
> On Fri, Mar 6, 2009 at 10:27 PM, Daniel Veillard <veillard at redhat.com> wrote:
> > On Thu, Mar 05, 2009 at 02:34:48AM +0900, Ryota Ozaki wrote:
> >> Hi,
> >>
> >> This patch enables to get CPU usage of a lxc using cpuacct subsystem
> >> of cgroups.
> >
> > Looks cool, what kernel version is required to make use of this ?
> > The kernel patch seems to be from last december, but I'm not sure.
> > I would just prefer to make sure it's in a released kernel version
> > before applying the patch here :-)
>
> Actually I didn't know that ;-), but...
>
> $ git-checkout v2.6.23
> Previous HEAD position was 4991408... Linux 2.6.24
> HEAD is now at bbf25010f... Linux 2.6.23
> $ grep -r cpuacct kernel |wc -l
> 0
> $ git-checkout v2.6.24
> Previous HEAD position was bbf25010f... Linux 2.6.23
> Checking out files: 100% (10210/10210), done.
> HEAD is now at 4991408... Linux 2.6.24
> $ grep -r cpuacct kernel |wc -l
> 27
>
> ok, it must be at v2.6.24!
That's certainly good enough - lets commit this to libvirt
Daniel
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