Re: [kvm-devel] performance with guests running 2.4 kernels (specifically RHEL3)

Avi Kivity
2008-05-29T11:49:41Z

David S. Ahern wrote:
> I've been instrumenting the guest kernel as well. It's the scanning of
> the active lists that triggers a lot of calls to paging64_prefetch_page,
> and, as you guys know, correlates with the number of direct pages in the
> list. Earlier in this thread I traced the kvm cycles to
> paging64_prefetch_page(). See
>

I optimized this function a bit, hopefully it will relieve some of the
pain. We still need to reduce the number of times it is called.

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error compiling committee.c: too many arguments to function