Re: [PATCHv2 2/3] qemu_cgroup: put qemu right into emulator sub-cgroup

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On Tue, Mar 01, 2016 at 12:34:44PM +0100, Peter Krempa wrote:
> On Tue, Mar 01, 2016 at 11:20:18 +0000, Daniel Berrange wrote:
> > On Fri, Feb 26, 2016 at 04:34:23PM +0100, Henning Schild wrote:
> > > Move qemuProcessSetupEmulator up under qemuSetupCgroup. That way
> > > we move the one main thread right into the emulator cgroup, instead
> > > of moving multiple threads later on. And we do not actually want any
> > > threads running in the parent cgroups (cpu cpuacct cpuset).
> > > 
> > > Signed-off-by: Henning Schild <henning.schild@xxxxxxxxxxx>
> > > ---
> > >  src/qemu/qemu_process.c | 8 ++++----
> > >  1 file changed, 4 insertions(+), 4 deletions(-)
> > > 
> > > diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> > > index 0c43183..7725a5f 100644
> > > --- a/src/qemu/qemu_process.c
> > > +++ b/src/qemu/qemu_process.c
> > > @@ -5087,6 +5087,10 @@ qemuProcessLaunch(virConnectPtr conn,
> > >          qemuProcessInitCpuAffinity(vm) < 0)
> > >          goto cleanup;
> > >  
> > > +    VIR_DEBUG("Setting emulator tuning/settings");
> > > +    if (qemuProcessSetupEmulator(vm) < 0)
> > > +        goto cleanup;
> > > +
> > >      VIR_DEBUG("Setting domain security labels");
> > >      if (virSecurityManagerSetAllLabel(driver->securityManager,
> > >                                        vm->def,
> > > @@ -5129,10 +5133,6 @@ qemuProcessLaunch(virConnectPtr conn,
> > >      if (rv == -1) /* The VM failed to start */
> > >          goto cleanup;
> > >  
> > > -    VIR_DEBUG("Setting emulator tuning/settings");
> > > -    if (qemuProcessSetupEmulator(vm) < 0)
> > > -        goto cleanup;
> > > -
> > >      VIR_DEBUG("Waiting for monitor to show up");
> > >      if (qemuProcessWaitForMonitor(driver, vm, asyncJob, priv->qemuCaps, logCtxt) < 0)
> > >          goto cleanup;
> > 
> > Do you have some other local patches applied to your git ?  I just went
> > to apply this and realized that qemuProcessSetupEmulator() does not
> > actually exist. It git master the function is qemuSetupCgroupForEmulator
> > and there is another function call qemuProcessSetEmulatorAffinity just
> > after it too.  So I can't apply this patch
> 
> This was based on top of my refactor that creates
> qemuProcessSetupEmulator. I didn't realize Henning based that on top of
> my patch. I wanted to wait until this gets sorted and then re-do my
> patch, but I can push it so that you can apply that.

Rather than go through another rebase, I've just pushed your patch and
Henning's on top of it

Regards,
Daniel
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