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Re: [GENERAL] disk performance benchmarks

From: Ron St-Pierre <rstpierre(at)syscor(dot)com>
To: "Jeffrey W(dot) Baker" <jwbaker(at)acm(dot)org>,pgsql-performance(at)postgresql(dot)org
Subject: Re: [GENERAL] disk performance benchmarks
Date: 2004-09-15 17:55:21
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Lists: pgsql-generalpgsql-performance
Jeffrey W. Baker wrote:

>All these replies are really interesting, but the point is not that my
>RAIDs are too slow, or that my CPUs are too slow.  My point is that, for
>long stretches of time, by database doesn't come anywhere near using the
>capacity of the hardware.  And I think that's odd and would like to
>config it to "false".
What motherboard are you using, and what distro? Earlier you mentioned 
that you're on linux 2.6.7 and
a 64-bit Opteron 244 machine with 8GB main memory, two 4-disk RAID5  
arrays (one for
database, one for xlogs).

Also, did you have a chance to test performance before you implemented RAID?


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