Re: WARNING: Adjusting tsc more then 11%

[John Stultz]

On 03/22/2012 12:11 PM, Sasha Levin wrote:
> On Wed, Mar 7, 2012 at 3:13 AM, John Stultz<john.stultz@xxxxxxxxxx>  wrote:
> > On Mon, 2012-03-05 at 22:36 +0200, Sasha Levin wrote:
> > > On Mon, Mar 5, 2012 at 10:27 PM, John Stultz<john.stultz@xxxxxxxxxx>  wrote:
> > > > On Mon, 2012-03-05 at 22:16 +0200, Sasha Levin wrote:
> > > > > On Mon, Mar 5, 2012 at 9:57 PM, Dave Jones<davej@xxxxxxxxxx>  wrote:
> > > > > > On Mon, Mar 05, 2012 at 11:50:10AM -0800, John Stultz wrote:
> > > > > >
> > > > > >   >  So it would be great to get further feedback from folks who are seeing
> > > > > >   >  this warning, so we can really hammer this out, but I don't want the
> > > > > >   >  warning spooking anyone into thinking things are terribly broken.
> > > > > >
> > > > > > One of the reports was from someone using vbox. I'm now wondering if
> > > > > > the other users are using some other flavour of virt. I'll ask.
> > > > > I've reported this issue with regards to KVM before
> > > > > (http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/85632) but
> > > > > according to this thread it's not really KVM specific.
> > > > >
> > > > > It's easily reproducible using Dave's trinity running inside a KVM guest.
> > > > Great! Do you have a link to trinity? (Google just gives me a video of
> > > > its use and links to various churches)
> > > Sure, the git tree is here: codemonkey.org.uk/projects/trinity/trinity.git
> > >
> > > Basically just start 2*vcpu instances of trinity inside the guest and
> > > wait a bit.
> > So I left trinity running in a 2vcpu kvm guest for ~5 hours and haven't
> > seen anything yet. Could you send me a .config for the guest kernel and
> > maybe your kvm command line?
> >
> > Also, it shouldn't really matter, but are the guests 32bit or 64bit?
> >
> > thanks
> > -john
> Sorry, I missed this mail.
>
> You should start several trinity instances, probably 4-5 on a 2vcpu guest.
Ah. Sorry I misread the 2*vcpu as  "on a 2 vcpu instance".   Thanks for 
the clarification. Re-running tests now.

thanks
-john

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