From: Mario Weilguni <mweilguni@sime.com>
To: Mark Kirkwood <markir@paradise.net.nz>
Cc: greg@tcscs.com, 'Mark Wong' <markwkm@gmail.com>
Cc: david@lang.hm, pgsql-performance@postgresql.org, 'Gabrielle Roth' <gorthx@gmail.com>
Subject: Re: file system and raid performance
Date: Thu, 07 Aug 2008 12:21:04 +0200
Message-ID: <489ACC90.9030401@sime.com> (raw)
In-Reply-To: <489AC2F0.9050907@paradise.net.nz>
References: <70c01d1d0808042154u7b78d988vac1e461a93b0ba10@mail.gmail.com>
<alpine.DEB.1.10.0808042201010.22058@asgard.lang.hm>
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<489A3B75.6060004@paradise.net.nz>
<489AC2F0.9050907@paradise.net.nz>
Mark Kirkwood schrieb:
> Mark Kirkwood wrote:
>> You are right, it does (I may be recalling performance from my other
>> machine that has a 3Ware card - this was a couple of years ago...)
>> Anyway, I'm thinking for the Hardware raid tests they may need to be
>> specified.
>>
>>
>
> FWIW - of course this somewhat academic given that the single disk xfs
> test failed! I'm puzzled - having a Gentoo system of similar
> configuration (2.6.25-gentoo-r6) and running the fio tests a little
> modified for my config (2 cpu PIII 2G RAM with 4x ATA disks RAID0 and
> all xfs filesystems - I changed sizes of files to 4G and no. processes
> to 4) all tests that failed on Marks HP work on my Supermicro P2TDER +
> Promise TX4000. In fact the performance is pretty reasonable on the
> old girl as well (seq read is 142Mb/s and the random read/write is
> 12.7/12.0 Mb/s).
>
> I certainly would like to see some more info on why the xfs tests were
> failing - as on most systems I've encountered xfs is a great performer.
>
> regards
>
> Mark
>
I can second this, we use XFS on nearly all our database servers, and
never encountered the problems mentioned.
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To: pgsql-performance@postgresql.org
Cc: mweilguni@sime.com, markir@paradise.net.nz, markwkm@gmail.com, gorthx@gmail.com
Subject: Re: file system and raid performance
In-Reply-To: <489ACC90.9030401@sime.com>
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