From: Josh Berkus <josh@agliodbs.com>
To: Ron Peacetree <rjpeace@earthlink.net>
Cc: pgsql-hackers@postgresql.org
Cc: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] A Better External Sort?
Date: Fri, 30 Sep 2005 10:23:30 -0700
Message-ID: <433D7492.7000307@agliodbs.com> (raw)
In-Reply-To: <28561251.1128057870608.JavaMail.root@elwamui-polski.atl.sa.earthlink.net>
References: <28561251.1128057870608.JavaMail.root@elwamui-polski.atl.sa.earthlink.net>
Ron,
> Hmmm.
> 60GB/5400secs= 11MBps. That's ssllooww. So the first
> problem is evidently our physical layout and/or HD IO layer
> sucks.
Actually, it's much worse than that, because the sort is only dealing
with one column. As I said, monitoring the iostat our top speed was
2.2mb/s.
--Josh
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To: pgsql-performance@postgresql.org
Cc: josh@agliodbs.com, rjpeace@earthlink.net, pgsql-hackers@postgresql.org
Subject: Re: [PERFORM] A Better External Sort?
In-Reply-To: <433D7492.7000307@agliodbs.com>
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