Re: [PATCH v3 2/9] KVM-HDR Add constant to represent KVM MSRsenabled bit

[Eric B Munson]

On Thu, 30 Jun 2011, Glauber Costa wrote:

> On 06/30/2011 09:59 AM, Eric B Munson wrote:
> >On Thu, 30 Jun 2011, Avi Kivity wrote:
> >
> >>On 06/30/2011 12:56 AM, Eric B Munson wrote:
> >>>My mail provider seems to have dropped patch 1 of the series so I can't reply
> >>>directly to it, please add my Tested-by there as well.
> >>
> >>How did you test it then?
> >>
> >
> >I built host and guest kernels with the patches and pinned a while(1) and the
> >CPU thread from qemu to CPU 2 on the host.  I then started the same while(1)
> >process in guest and verified that I see ~50% steal time reported.
> >
> >I then built 2.6.39 (just the code I had present) on the guest and time it
> >while it was competing with the while(1) on the host for CPU time.  Next I
> >built the guest kernel with STEAL_TIME=N and reran the kernel compile to make
> >sure that there weren't any huge variations in performace.
> >
> >Eric
> I think what Avi means is, it won't even compile without PATCH 1/9.
> If you don't have it, how could you test it ?
> 

It made it to several lkml archives.

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