[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
-- 
|: Red Hat, Engineering, London   -o-   http://people.redhat.com/berrange/ :|
|: http://libvirt.org  -o-  http://virt-manager.org  -o-  http://ovirt.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505  -o-  F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|




More information about the libvir-list mailing list