From: Miguel <mmiranda@123.com.sv>
To: Postgresql Performance <pgsql-performance@postgresql.org>
Subject: Re: Best OS & Configuration for Dual Xeon w/4GB & Adaptec
Date: Mon, 20 Mar 2006 15:12:37 -0600
Message-ID: <441F1AC5.9050700@123.com.sv> (raw)
In-Reply-To: <C04457A1.1F924%llonergan@greenplum.com>
References: <C04457A1.1F924%llonergan@greenplum.com>
Luke Lonergan wrote:
>Miguel,
>
>On 3/20/06 12:52 PM, "Miguel" <mmiranda@123.com.sv> wrote:
>
>
>
>>i have a HP dl380 g3 with array 5i controlled (1+0), these are my results
>>
>>
>
>Another "known bad" RAID controller. The Smartarray 5i is horrible on Linux
>- this is the first BSD result I've seen.
>
>
>
>>Seek times:
>> Full stroke: 250 iter in 1.138232 sec = 4.553 msec
>> Half stroke: 250 iter in 1.084474 sec = 4.338 msec
>>
>>
>
>These seem OK - are they "access times" or are they actually "seek times"?
>
>
i dont know, how can i check?
>Transfer rates:
> outside: 102400 kbytes in 2.075984 sec = 49326 kbytes/sec
> middle: 102400 kbytes in 2.100510 sec = 48750 kbytes/sec
> inside: 102400 kbytes in 2.042313 sec = 50139 kbytes/sec
>
>
>is this good enough?
>It's pretty slow. How many disk drives do you have?
>
>
>
>
I have 6 ultra a320 72G 10k discs
---
Miguel
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To: pgsql-performance@postgresql.org
Cc: mmiranda@123.com.sv
Subject: Re: Best OS & Configuration for Dual Xeon w/4GB & Adaptec
In-Reply-To: <441F1AC5.9050700@123.com.sv>
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