On 11/1/06, Sam Johnston <samj at samj.net> wrote:
> You probably want to leave it at 128Mb for your domU's but try not to starve
> dom0 (1/2 gig should be fine). I suspect the main factor here will be the
> file system cache - dom0 does the dirty work on behalf of the domU's so one
> would think that the larger the cache the better. I'm not sure what's
> involved in tuning this though (nor whether any is required).
Well, according to the Xen list, it is really up to your requirements,
and they don't seem to have a lot of RAM for dom0 (and no swap
either, which is exactly what I am testing at the moment). But to be
on the safe side, 128MB sounds like a minimum requirement although I'd
sleep better knowing it has 256MB allocated.
http://lists.xensource.com/archives/html/xen-users/2005-12/msg00528.html
Steph
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