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Date:	Fri, 30 Dec 2011 10:51:47 +0100
From:	Ingo Molnar <>
To:	Avi Kivity <>
Cc:	Nikunj A Dadhania <>,,,,
Subject: Re: [RFC PATCH 0/4] Gang scheduling in CFS

* Avi Kivity <> 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.


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