Re: [Xen-users] memory not released to dom0

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Jan 26, 2010 at 06:16:26PM +0700, Fajar A. Nugraha wrote:
> On Tue, Jan 26, 2010 at 1:58 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > That's here.. since I was not sure if it's a best practice or not:
> > http://wiki.xensource.com/xenwiki/XenCommonProblems
> 
> Good point. We need a "standard" criteria on what a "best practice" is :D
> 

Yeah :)

> As far as dedicated dom0 CPU goes, there's this entry from
> http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html
> 
> "If you are running IO intensive tasks, its typically better to
> dedicate either a hyperthread or whole core to running domain 0, and
> hence pin other domains so that they can't use CPU 0. If your workload
> is mostly compute intensive, you may want to pin vcpus such that all
> physical CPU threads are available for guest domains."
> 
> Since in my environment I/O (disk and network) becomes the bottleneck,
> it's a best practice for me.
> 

Well.. I'll add a note of this to XenBestPractices :)

-- Pasi


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