From: David Gibson <david@gibson.dropbear.id.au>
To: Alexander Graf <agraf@suse.de>
Cc: paulus@samba.org, qemu-devel@nongnu.org, anton@samba.org
Subject: Re: [Qemu-devel] [PATCH 1/3] pseries: Increase maximum CPUs to 256
Date: Wed, 20 Apr 2011 16:31:13 +1000 [thread overview]
Message-ID: <20110420063113.GB25399@yookeroo> (raw)
In-Reply-To: <4DADA3FD.3040205@suse.de>
On Tue, Apr 19, 2011 at 05:02:21PM +0200, Alexander Graf wrote:
> On 04/19/2011 02:44 PM, David Gibson wrote:
> >On Tue, Apr 19, 2011 at 09:38:58AM +0200, Alexander Graf wrote:
> >>On 19.04.2011, at 03:54, David Gibson wrote:
> >>
> >>>From: Anton Blanchard<anton@au1.ibm.com>
> >>>
> >>>The original pSeries machine was limited to 32 CPUs, more or less
> >>>arbitrarily. Particularly when we get SMT KVM guests it will be
> >>>pretty easy to exceed this. Therefore, raise the max number of CPUs
> >>>in a pseries machine guest to 256.
> >>Are the 256 limited by technical limits or arbitrary as well? :)
> >Still arbitrary, just bigger.
>
> Can't we set it to the real, technical limit then?
There is no clear real, technical limit. It would depend on exactly
what generation of pSeries we're talking about, and be in the
thousands.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
next prev parent reply other threads:[~2011-04-20 6:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-19 1:54 [Qemu-devel] [0/3] More pSeries machine tweaks David Gibson
2011-04-19 1:54 ` [Qemu-devel] [PATCH 1/3] pseries: Increase maximum CPUs to 256 David Gibson
2011-04-19 7:38 ` Alexander Graf
2011-04-19 12:44 ` David Gibson
2011-04-19 15:02 ` Alexander Graf
2011-04-20 6:31 ` David Gibson [this message]
2011-04-20 7:12 ` Alexander Graf
2011-04-19 1:54 ` [Qemu-devel] [PATCH 2/3] Make pSeries 'model' property more closely resemble real hardware David Gibson
2011-04-19 1:54 ` [Qemu-devel] [PATCH 3/3] Place pseries vty devices at addresses more similar to existing machines David Gibson
2011-04-25 16:42 ` [Qemu-devel] pSeries build breakage Andreas Färber
2011-04-26 10:02 ` David Gibson
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