Re: [RFC PATCH 0/4] Gang scheduling in CFS

From: Nikunj A Dadhania
Date: Fri Dec 30 2011 - 05:14:36 EST

On Fri, 30 Dec 2011 10:51:47 +0100, Ingo Molnar <mingo@xxxxxxx> wrote:
> * Avi Kivity <avi@xxxxxxxxxx> wrote:
> > [...]
> >
> > The first part appears to be unrelated to ebizzy itself - it's
> > the kunmap_atomic() flushing ptes. It could be eliminated by
> > switching to a non-highmem kernel, or by allocating more PTEs
> > for kmap_atomic() and batching the flush.
> Nikunj, please only run pure 64-bit/64-bit combinations - by the
> time any fix goes upstream and trickles down to distros 32-bit
> guests will be even less relevant than they are today.
Sure Ingo, got a 64bit guest working yesterday and I am in process of
getting the benchmark numbers for the same.


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