Re: [PATCH] KVM: Use thread debug register storage instead of kvm specific data

[Avi Kivity <avi@redhat.com>]

On 09/01/2009 12:44 PM, Avi Kivity wrote:
> Instead of saving the debug registers from the processor to a kvm data
> structure, rely in the debug registers stored in the thread structure.
> This allows us not to save dr6 and dr7.
>
> Reduces lightweight vmexit cost by 350 cycles, or 11 percent.
>    

Andrew, this is now available as the 'debugreg' branch of kvm.git.  
Given the massive performance improvement, it will be interesting to see 
how the test results change.

Marcelo, please queue this for 2.6.32, and I think it's even suitable 
for -stable.

-- 
error compiling committee.c: too many arguments to function