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Re: [Xen-devel] RE: Ballooning up

To: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] RE: Ballooning up
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 15 Sep 2010 10:29:15 -0700
Cc: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Wilk <konrad.wilk@xxxxxxxxxx>, Daniel Kiper <dkiper@xxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
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 On 09/15/2010 12:10 AM, Ian Campbell wrote:
>> Indeed.  I think adding general 32x limit between base and max size will
>> prevent a completely unusable system, and then just suggest using mem=
>> to control that more precisely (esp for dom0).
> Sounds reasonable.

I found 32x doesn't work; there seems to be a lot more per-page overhead
than I expected.  I made the limit 10x, which I determined empirically
and somewhat arbitrarily, but it does seem reasonable.

    J

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