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From: Ogden <lists@darkstatic.com>
To: ktm@rice.edu
Cc: pgsql-performance@postgresql.org
Subject: Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++
Date: Wed, 17 Aug 2011 13:32:41 -0500
Message-ID: <E6229A9F-876F-4604-900A-EC93C5B720AB@darkstatic.com> (raw)
In-Reply-To: <20110817183101.GJ26302@staff-mud-56-27.rice.edu>
References: <959BD2FA-0312-458B-BD5F-ED358D2C47ED@darkstatic.com>
	<f4e06a7cad34ee9217a3e57fd4eb0e67.squirrel@sq.gransy.com>
	<D89151D3-D2E5-47E3-8B90-4A573DAB5FFA@darkstatic.com>
	<75A85649-2B95-43D5-8404-4776D2E580EC@darkstatic.com>
	<20110817183101.GJ26302@staff-mud-56-27.rice.edu>


On Aug 17, 2011, at 1:31 PM, ktm@rice.edu wrote:

> On Wed, Aug 17, 2011 at 01:26:56PM -0500, Ogden wrote:
>> I am using bonnie++ to benchmark our current Postgres system (on RAID 5) with the new one we have, which I have configured with RAID 10. The drives are the same (SAS 15K). I tried the new system with ext3 and then XFS but the results seem really outrageous as compared to the current system, or am I reading things wrong?
>> 
>> The benchmark results are here:
>> 
>> http://malekkoheavyindustry.com/benchmark.html
>> 
>> 
>> Thank you
>> 
>> Ogden
> 
> That looks pretty normal to me.
> 
> Ken

But such a jump from the current db01 system to this? Over 20 times difference from the current system to the new one with XFS. Is that much of a jump normal?

Ogden


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