Re: [vserver] vserver scalability

From: Eugen Leitl <eugen_at_leitl.org>
Date: Tue 15 Jun 2010 - 10:54:07 BST
Message-ID: <20100615095407.GA1964@leitl.org>

On Mon, Jun 14, 2010 at 11:14:26PM +0200, Andre Timmermann wrote:
> Hi,
>
> Am Donnerstag, den 03.06.2010, 21:32 +0200 schrieb Herbert Poetzl:
>
> > > Am particularly interested to know how many virtual servers
> > > can be spawned in a single host?
> >
> > we stopped testing around 40.000 guests on a single
> > host, because it became somwhat slow and the 64k
> > process limit was an issue back then ....
>
> I am pretty sure that it is POSSIBLE to start several hundrets or even
> thousends of guests on one physical machine, but the real question is
> how many guests are REASONABLE on on physical machine.
>
> In my experience the main impact is I/O on normal server hardware (e.g
> Dual Intel Xeon CPU / 8 cores / 12 GB RAM / two disks with raid 1)

Something which can be adressed with SSDs.
 
> If each instance operates an own mysql-server, then it gets worse.
>
> So the second question should be: what will be done/installed on the
> guests?
>
> Greetz,
> Andre
>

-- 
Eugen* Leitl leitl http://leitl.org
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Received on Tue Jun 15 10:55:56 2010
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