Re: [Xen-devel] Multiple Xen Guests

[Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>]

> > I've successfully started 129 domains, but it was some time ago
> > and its not totally inconceivable that things could have rotted.
> > 
> > You're not simply running out of memory are you? I'm afraid the
> > error codes on failure aren't very helpful -- its something that
> > we'd certainly like to fix.
> 
> The machine has 2GB of memory, how much memory did 129 guests require? 

According to my notes, I was using a machine with 2GB of RAM, and
started domain 0 with 48000KB and all the other domains with
15000KB. There was probably enough spare RAM to start a few more,
but I'd only created 129 root file systems, so didn't try.

Xen currently reserves quite a bit of RAM for itself, rather more
than is strictly needs for most configurations, but it hasn't
been a priority to fix it.

Ian
 


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