Re: PostgreSQL strugling during high load - Mailing list pgsql-performance

From Steve Poe
Subject Re: PostgreSQL strugling during high load
Date
Msg-id 428CF2A8.20602@sfnet.cc
Whole thread Raw
In response to Re: PostgreSQL strugling during high load  (Josh Berkus <josh@agliodbs.com>)
List pgsql-performance
Josh Berkus wrote:

>Anjan,
>
>
>
>>As far as disk I/O is concerned for flushing the buffers out, I am not
>>ruling out the combination of Dell PERC4 RAID card, and the RH AS 3.0
>>Update3 being a problem.
>>
>>
>
>You know that Update4 is out, yes?
>Update3 is currenly throttling your I/O by about 50%.
>
>

Is that 50% just for the Dell PERC4 RAID on RH AS 3.0?  Sound like
severe context switching.

Steve Poe


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