From: | Cosimo Streppone <cosimo(at)streppone(dot)it> |
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To: | Postgresql Performance list <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: Easy read-heavy benchmark kicking around? |
Date: | 2006-11-08 16:57:00 |
Message-ID: | 45520C5C.8000705@streppone.it |
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Lists: | pgsql-performance |
Merlin Moncure wrote:
> On 11/8/06, Markus Schaber <schabi(at)logix-tt(dot)com> wrote:
>> Hi, Brian,
>>
>> Brian Hurt wrote:
>>
>> > So the question is: is there an easy to install and run, read-heavy
>> > benchmark out there that I can wave at them to get them to fix the
>> > problem?
>>
>> For sequential read performance, use dd. Most variants of dd I've seen
>> output some timing information, and if not, do a "time dd
>> if=/your/device of=/dev/null bs=1M" on the partition.
>
> we had a similar problem with a hitachi san, the ams200. Their
> performance group refused to admit the fact that 50mb/sec dd test was
> a valid performance benchmark and needed to be addressed.
>
> [...]
>
> oh, the unit also lost a controller after about a week of
> operation...the unit being a HITACHI SAN, the AMS200.
>
> any questions?
Yes, one.
What was that unit?
;-)
--
Cosimo
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