[ILUG] Xen: Dividing RAM between dom0 and domU's[Scanned]
cormac.mcclean at gmail.com
Wed Nov 1 12:05:18 GMT 2006
Thanks for the info. We start working with them next week so I'll fairly
quickly get a sense of whether I need to make adjustments, but at least
I'm not completely off with the initial settings.
> 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
>> dom0 (1/2 gig should be fine). I suspect the main factor here will be
>> 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.
Lecturer, Athlone IT Software Engineering
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