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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] limit rt cache size
Date: Wed, 09 Aug 2006 17:02:29 -0700 (PDT)
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From: Andi Kleen <ak@suse.de>
Date: Wed, 9 Aug 2006 18:32:26 +0200

> One issue I forgot earlier and Kirill pointed out is that the
> reallocation would require vmalloc because memory will be too fragmented
> to get a big piece of physical memory. So it would add TLB pressure. 
> 
> Can't think of a good way around that.
> 
> You might have been right with being sceptical.

For NUMA this already happens, is it a problem in practice?