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From: Josh Berkus <josh@agliodbs.com>
To: Anjan Dave <adave@vantage.com>
Cc: Donald Courtney <Donald.Courtney@sun.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org
Subject: Re: PostgreSQL strugling during high load
Date: Thu, 19 May 2005 12:57:44 -0700
Message-ID: <200505191257.44874.josh@agliodbs.com> (raw)
In-Reply-To: <4BAFBB6B9CC46F41B2AD7D9F4BBAF785098A32@vt-pe2550-001.vantage.vantage.com>
References: <4BAFBB6B9CC46F41B2AD7D9F4BBAF785098A32@vt-pe2550-001.vantage.vantage.com>

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%.

-- 
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco



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