From: Kevin Grittner <kgrittn@ymail.com>
To: Sev Zaslavsky <sevzas@gmail.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: slow query - will CLUSTER help?
Date: Thu, 19 Dec 2013 12:14:16 -0800 (PST)
Message-ID: <1387484056.45481.YahooMailNeo@web162906.mail.bf1.yahoo.com> (raw)
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Sev Zaslavsky <sevzas@gmail.com> wrote:
I want to agree with everything Shaun said and add a tiny bit.
> Does loading 24Gb of data in 21 sec seem "about right"?
It's a little on the slow side. You said 1634 page reads. At 9 ms
per read that would be 14.7 seconds. But I'm basing the 9 ms per
page read on my Linux experience, and I remember benchmarking the
same application hitting PostgreSQL on the same hardware as about
30% faster on Linux than on Windows, so that *almost* makes up for
the difference.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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Cc: kgrittn@ymail.com, sevzas@gmail.com
Subject: Re: slow query - will CLUSTER help?
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