Subject: Re: NetBSD SMP support (quad vs dual CPU)
To: None <>
From: Null Void <>
List: netbsd-users
Date: 11/11/2006 14:44:05
OK then, if NetBSD SMP is stable enough for production use I have another q=
uestion. My company is thinking of buying a server for running NetBSD SMP i=
n production for a fairly high-load application server running Xen and 4 gu=
est operating systems (Windows, Linux, etc).
The choices are:

1. DELL POWEREDGE 6650 QUAD Xeon 2Ghz with 4GB RAM for about $800
2. SuperMicro X5DPL-iGM Dual Xeon 2.4GHz 4GB RAM for about $700

Considering NetBSD+Xen performance on dual vs quad CPU systems and factorin=
g in the price, which one would you pick? From purely theoretical point of =
view, the quad CPU should perform better, but I know the devil is in the de=
tails and I've seen many cases where quad CPU systems perform worse than a =
dual ones with configuration similar to the one I've given above. Any advic=
e/comments is appreciated.
Thanks in advance.

> ----- Original Message -----
> From: "Manuel Bouyer" <>
> To: "Null Void" <>
> Subject: Re: NetBSD SMP support
> Date: Wed, 8 Nov 2006 23:13:39 +0100
> On Mon, Nov 06, 2006 at 08:04:16PM -0500, Null Void wrote:
> > Hi all,
> >
> > Can somebody tell me what is the current status of SMP support in=20
> > NetBSD? Is it stable enough for use in production or is it still=20
> > experimental?
> Works fine here on dual-Xeon mail hubs (because of hyperthreading the
> system sees 4 CPUs). The system runs mimedefang, which calls spamassassin
> and clamav for each mail forwarded, so it has quite a bit of work to do.
> --
> Manuel Bouyer <>
>       NetBSD: 26 ans d'experience feront toujours la difference
> --



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