Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++
От
Ogden
Тема
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++
Дата
Msg-id
21274E74-AD46-49CB-8A28-291560743FB4@darkstatic.com
Ответ на
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ (ktm@rice.edu)
Список
Дерево обсуждения
Tuning Tips for a new Server Ogden <lists@darkstatic.com>
Re: Tuning Tips for a new Server Andy Colson <andy@squeakycode.net>
Re: Tuning Tips for a new Server Ogden <lists@darkstatic.com>
Re: Tuning Tips for a new Server "Tomas Vondra" <tv@fuzzy.cz>
Re: Tuning Tips for a new Server "Tomas Vondra" <tv@fuzzy.cz>
Re: Tuning Tips for a new Server Ogden <lists@darkstatic.com>
Re: Tuning Tips for a new Server "Tomas Vondra" <tv@fuzzy.cz>
Re: Tuning Tips for a new Server Ogden <lists@darkstatic.com>
Re: Tuning Tips for a new Server Scott Marlowe <scott.marlowe@gmail.com>
Re: Tuning Tips for a new Server Ogden <lists@darkstatic.com>
Re: Tuning Tips for a new Server "Tomas Vondra" <tv@fuzzy.cz>
Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ "ktm@rice.edu" <ktm@rice.edu>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ "ktm@rice.edu" <ktm@rice.edu>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ "ktm@rice.edu" <ktm@rice.edu>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Andy Colson <andy@squeakycode.net>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Andy Colson <andy@squeakycode.net>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ J Sisson <sisson.j@gmail.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Gary Doades <gpd@gpdnet.co.uk>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Gary Doades <gpd@gpdnet.co.uk>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Greg Smith <greg@2ndQuadrant.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ "mark" <dvlhntr@gmail.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Greg Smith <greg@2ndQuadrant.com>
Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ Ogden <lists@darkstatic.com>
On Aug 17, 2011, at 1:35 PM, ktm@rice.edu wrote:
On Wed, Aug 17, 2011 at 01:32:41PM -0500, Ogden wrote: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.htmlThank youOgdenThat looks pretty normal to me.KenBut 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
Yes, RAID5 is bad for in many ways. XFS is much better than EXT3. You would get similar
results with EXT4 as well, I suspect, although you did not test that.
i tested ext4 and the results did not seem to be that close to XFS. Especially when looking at the Block K/sec for the Sequential Output.
So XFS would be best in this case?
Thank you
Ogden
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