Re: Opteron vs Xeon (Was: What to do with 6 disks?)

From: Vivek Khera <vivek(at)khera(dot)org>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Opteron vs Xeon (Was: What to do with 6 disks?)
Date: 2005-04-20 15:38:06
Message-ID: 71ac0e6e17e61544522edec3fdecb087@khera.org
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On Apr 20, 2005, at 12:40 AM, Jeff Frost wrote:

> I've seen quite a few folks touting the Opteron as 2.5x faster with
> postgres than a Xeon box. What makes the Opteron so quick? Is it
> that Postgres really prefers to run in 64-bit mode?
>

The I/O path on the opterons seems to be much faster, and having 64-bit
all the way to the disk controller helps... just be sure to run a
64-bit version of your OS.

Vivek Khera, Ph.D.
+1-301-869-4449 x806

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