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Re: [Xen-ia64-devel] [PATCH] SMP_HOST: Alloc vhpt from domheap

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH] SMP_HOST: Alloc vhpt from domheap
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Fri, 24 Feb 2006 14:08:56 -0700
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On Fri, 2006-02-24 at 13:58 -0700, Alex Williamson wrote:
> On Fri, 2006-02-24 at 10:42 +0800, Xu, Anthony wrote:
> > It's more reasonable to alloc vhpt from domheap, instead of xenheap.
> 
> Anthony,
> 
>    This looks to pretty significantly decrease the amount of memory
> available to xen.  With it, I'm no longer able to boot a single 384MB
> domU domain on a system with 1GB of memory (xminfo report 382MB
> available).  Should the xenheap size be reduced, or are we fragmenting
> memory somewhere with this?  Thanks,

  I guess it's not as significant as I thought, w/o the patch xm info
reports 398MB available, so I lost a granule of memory.  I still wonder
if xenheap should be shrunk to account for this.  Thanks,

        Alex
-- 
Alex Williamson                             HP Linux & Open Source Lab


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