From: Luke Lonergan <llonergan@greenplum.com>
To: Bucky Jordan <bjordan@lumeta.com>
To: Vivek Khera <vivek@khera.org>
To: Pgsql-Performance ((E-mail)) <pgsql-performance@postgresql.org>
Subject: Re: Dell PowerEdge 2950 performance
Date: Tue, 15 Aug 2006 11:50:02 -0700
Message-ID: <C107656A.2E3A2%llonergan@greenplum.com> (raw)
In-Reply-To: <78ED28FACE63744386D68D8A9D1CF5D41049E5@MAIL.corp.lumeta.com>
Bucky,
I don't know why I missed this the first time - you need to let bonnie++
pick the file size - it needs to be 2x memory or the results you get will
not be accurate.
In this case you've got a 1GB file, which nicely fits in RAM.
- Luke
On 8/15/06 6:56 AM, "Bucky Jordan" <bjordan@lumeta.com> wrote:
> ...
> I see you are running bonnie++ version 1.93c. The numbers it reports are
> very different from version 1.03a, which is the one everyone runs - can
> you
> post your 1.03a numbers from bonnie++?
> ...
>
> Luke,
>
> Thanks for the pointer. Here's the 1.03 numbers, but at the moment I'm
> only able to run them on the 6 disk RAID 5 setup (128k stripe, writeback
> enabled since the Perc5 does have a battery backed cache).
>
> bonnie++ -d bonnie -s 1000:8k
> Version 1.03 ------Sequential Output------ --Sequential Input-
> --Random-
> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
> --Seeks--
> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
> /sec %CP
> 1000M 155274 95 265359 44 232958 52 166884 99
> 1054455 99 +++++ +++
> ------Sequential Create------ --------Random
> Create--------
> -Create-- --Read--- -Delete-- -Create-- --Read---
> -Delete--
> files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
> /sec %CP
> 16 +++++ +++ +++++ +++ +++++ +++ 30550 88 +++++ +++
> +++++ +++
> ,1000M,155274,95,265359,44,232958,52,166884,99,1054455,99,+++++,+++,16,+
> ++++,+++,+++++,+++,+++++,+++,30550,88,+++++,+++,+++++,+++
>
> - Bucky
>
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To: pgsql-performance@postgresql.org
Cc: llonergan@greenplum.com, bjordan@lumeta.com, vivek@khera.org
Subject: Re: Dell PowerEdge 2950 performance
In-Reply-To: <C107656A.2E3A2%llonergan@greenplum.com>
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