From: Dimi Paun <dimi@lattica.com>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: pgsql-performance <pgsql-performance@postgresql.org>
Subject: Re: Bad performance on simple query
Date: Mon, 17 Nov 2008 12:31:02 -0500
Message-ID: <1226943062.5760.103.camel@dimi.lattica.com> (raw)
In-Reply-To: <dcc563d10811170916n622e4f86g8f2b2dbe9b9e2a61@mail.gmail.com>
References: <1226937197.5760.89.camel@dimi.lattica.com>
<dcc563d10811170853y75b1286fy503d82222b49bf15@mail.gmail.com>
<1226941621.5760.97.camel@dimi.lattica.com>
<dcc563d10811170916n622e4f86g8f2b2dbe9b9e2a61@mail.gmail.com>
On Mon, 2008-11-17 at 10:16 -0700, Scott Marlowe wrote:
> Ahhh. Keep in mind that if you just run the query, pgadminIII will
> tell you how long it took to run AND return all the data across the
> network, so it will definitely take longer then. But most of that's
> network io wait so it's not a real issue unless you're saturating your
> network.
But that is brutal -- there's no way it can take 20ms for a request
across an unloaded network.
Moreover, I got something like this:
pgadminIII | pgsql
w/o index: 45ms 0.620ms
w/ index 20ms 0.091ms
How now I try to replicate, and I get 45ms in both cases. This is
very misleading...
--
Dimi Paun <dimi@lattica.com>
Lattica, Inc.
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To: pgsql-performance@postgresql.org
Cc: dimi@lattica.com, scott.marlowe@gmail.com
Subject: Re: Bad performance on simple query
In-Reply-To: <1226943062.5760.103.camel@dimi.lattica.com>
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