Subject: Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++
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From: Ogden <lists@darkstatic.com>
In-Reply-To: <20110817183101.GJ26302@staff-mud-56-27.rice.edu>
Date: Wed, 17 Aug 2011 13:32:41 -0500
Cc: pgsql-performance@postgresql.org
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To: ktm@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?
>>=20
>> The benchmark results are here:
>>=20
>> http://malekkoheavyindustry.com/benchmark.html
>>=20
>>=20
>> Thank you
>>=20
>> Ogden
>=20
> That looks pretty normal to me.
>=20
> 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=