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[Xen-devel] Re: Memory fragmentation, order>0 allocation, and 4.0 dynamic RAM optimization features

To: "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Thu, 18 Feb 2010 08:04:51 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Tim Deegan <Tim.Deegan@xxxxxxxxxx>, GeorgeDunlap <george.dunlap@xxxxxxxxxxxxx>, PatrickColp <pjcolp@xxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, Andrew Peace <Andrew.Peace@xxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Grzegorz Milos <gm281@xxxxxxxxx>
Delivery-date: Thu, 18 Feb 2010 00:05:49 -0800
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

>>> Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> 08.02.10 19:13 >>>
>Are there other known order>0 allocations that might result
>in similar issues?

Interestingly, tmem itself indirectly causes order-1 allocations (through
the use of xmem_pool_create(), sizeof(struct xmem_pool) = 0x18d0
on a non-debug build).

Jan


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