Messages in this thread | | | Date | Thu, 30 Jun 2011 10:21:54 -0300 | From | Glauber Costa <> | Subject | Re: [PATCH v3 2/9] KVM-HDR Add constant to represent KVM MSRs enabled bit |
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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 ?
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