Re: [PATCH v2 6/8] kvm tools: Add rwlock wrapper

Avi Kivity
2011-05-30T12:25:59Z

On 05/30/2011 03:22 PM, Sasha Levin wrote:
> >
> > Oh, that's neat. Btw., i think there should be an option to actually
> > *force* blatant overcommit: if i typo the option i'd like the tool to
> > tell me that i'm probably stupid and refuse to run with that (and
> > suggest the force-overcommit option), instead of trying to swap itelf
> > to death!
>
> How much is a 'blatant' overcommit? KVM easily handles x32 of host RAM.
>

That's close to the limit. Most of memory would be taken by the struct
page array, which is about guest_ram/64.

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error compiling committee.c: too many arguments to function