Re: [RFC] concurrent guest walker and instruction emulation

[Izik Eidus <izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

On Tue, 2007-12-18 at 08:26 -0500, Marcelo Tosatti wrote:
> Hi, 
> 
> The following is an improvement on top of an earlier patch by Izik. It
i would say MUCH improvement :)
> increases pagefault scalability for SMP guests by allowing concurrent
> guest walking, allocation and instruction emulation on the fault path.
> 
> The test being used is pft, which starts a number of threads
> allocating and writing malloc()'ed memory. pft.c can be found at
> http://lkml.org/lkml/2004/8/15/58

the code seems good and very complete, it so complete that i would had
split it into two patchs
(the one for the spin_lock and the one for the down_read)

but more important :) is that you actually helped another patch that i
wrote that register kvm shadow pages with the kernel shrinker that i
couldnt merge beacuse the shadow pages didnt had their private spin lock
(this i hope will make all of kvm memory swappable)
i will test it today with it when i get home...
anyway good work



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