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From: Christopher Petrilli <petrilli@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PFC <lists@boutiquenumerique.com>
Cc: Vivek Khera <vivek@khera.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: Impact of checkpoint_segments under continual load conditions
Date: Tue, 19 Jul 2005 12:54:35 -0400
Message-ID: <59d991c4050719095440cd3de5@mail.gmail.com> (raw)
In-Reply-To: <7224.1121791328@sss.pgh.pa.us>
References: <59d991c4050717100874c08a86@mail.gmail.com>
	<16394.1121715156@sss.pgh.pa.us>
	<59d991c405071812342e290f57@mail.gmail.com>
	<16794.1121718743@sss.pgh.pa.us>
	<59d991c405071907482bb0689b@mail.gmail.com>
	<op.st52tvunth1vuj@localhost>
	<59d991c4050719084460b376f1@mail.gmail.com>
	<4541.1121788647@sss.pgh.pa.us>
	<59d991c40507190930244ba9bb@mail.gmail.com>
	<7224.1121791328@sss.pgh.pa.us>

As I'm doing this, I'm noticing something *VERY* disturbing to me:

postmaster backend: 20.3% CPU
psql frontend: 61.2% CPU

WTF?  The only thing going through the front end is the COPY command,
and it's sent to the backend to read from a file?

Chris
-- 
| Christopher Petrilli
| petrilli@gmail.com



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