Re: [PATCH 0/4] Swapping

[Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>]

Izik Eidus wrote:
> this patchs allow the guest not shadowed memory to be swapped out.
>
> to make it the must effective you should run -kvm-shadow-memory 1 (witch 
> will make your machine slow)
> with -kvm-shadow-memory 1,  3giga memory guest can get to be just 32mb 
> on physical host!
>
> when not using -kvm-shadow-memory, i saw 4100mb machine getting to as 
> low as 168mb on the physical host (not as bad as i thought it would be, 
> and surely not as bad as it can be with 41mb of shadow pages :))
>   

So what exactly does this option do?  Is it really worth exposing it as 
an option if it slows down guests so much?

At least, a better name for the option would be nice.

Regards,

Anthony Liguori

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