Yes but if everything else is equal then clock speed does play a part.

Love to use an Opteron but they're not supported so a non-starter.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Glen B
Sent: 11 February 2005 18:17
To: u2-users@listserver.u2ug.org
Subject: RE: [U2] Has anyone played with/tested UniVerse 10+ under
Solaris 10

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Adrian
Matthews
> Sent: Friday, February 11, 2005 8:59 AM
> To: u2-users@listserver.u2ug.org
> Subject: RE: [U2] Has anyone played with/tested UniVerse 10+ under
> Solaris 10
>
>
> We've been through a very similar exercise recently (as you've
probably
> guessed) and we came down to using IBMx445 servers with RHEL AS 3.
>
> As the clock speed of the SPARC is relatively low compared to a Xeon
MP
> we found that combination outperformed the Sun (and was a lot cheaper
> once a large disk array was added in). There was nothing that Sun
could
> do to improve the performance due to Universe being compiled against a
> very old solaris (7) version.

 Core clock speed, alone, is an irrelevant factor in the overall
performance. It typically only makes a difference based on chip
architecture, bus speed, memory access, and chipset performance. The Sun
box is a RISC platform, right? I'd be interested in your
comparison specs, if you can dig 'em up. I'd bet a few bucks that a dual
Opteron(2.0Ghz-2.4Ghz) would smoke a Dual Xeon-MP of any
current speed. I've never put them side by side with exactly the same
peripheral hardware. A Xeon is basically just a Pentium on
steroids. Have you looked at the Opteron whitepaper and architecture
specs? The potential bandwidth those things have, as n-way
configs, is totally awesome. I'm sure even a single 100 series, on a
dual-board, will smoke a single Xeon. Check out the 800
series - if you've got a bottomless wallet, you can run an 8-way
Opteron. *drool*

>
> You can probably imagine what the Sun engineers reaction to that was!
He
> wasn't very complimentary about IBM.
>
> Interestingly Solaris 10 is supposed to be able to run any Linux
> application.
>

  Hrm.. I find that hard to believe. ANY Linux binary?

Glen
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