From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ron <rjpeace@earthlink.net>
Cc: Matthew Sackman <matthew@lshift.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: Massive performance issues
Date: Thu, 01 Sep 2005 16:25:29 -0400
Message-ID: <6092.1125606329@sss.pgh.pa.us> (raw)
In-Reply-To: <6.2.3.4.0.20050901145054.021b1678@pop.earthlink.net>
References: <20050901174231.GE23970@pongo.lshift.net>
<6.2.3.4.0.20050901145054.021b1678@pop.earthlink.net>
Ron <rjpeace@earthlink.net> writes:
> ... Your target is to have each row take <= 512B.
Ron, are you assuming that the varchar fields are blank-padded or
something? I think it's highly unlikely that he's got more than a
couple hundred bytes per row right now --- at least if the data is
what it sounds like.
The upthread comment about strcoll() set off some alarm bells in my head.
If the database wasn't initdb'd in C locale already, try making it so.
Also, use a single-byte encoding if you can (LatinX is fine, Unicode not).
> Upgrade pg to 8.0.3 and make sure you have enough RAM for your real
> day to day load.
Newer PG definitely better. Some attention to the configuration
parameters might also be called for. I fear though that these things
are probably just chipping at the margins ...
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, rjpeace@earthlink.net, matthew@lshift.net
Subject: Re: Massive performance issues
In-Reply-To: <6092.1125606329@sss.pgh.pa.us>
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