From: | "Mikael Carneholm" <Mikael(dot)Carneholm(at)WirelessCar(dot)com> |
---|---|
To: | "Rich Shepard" <rshepard(at)appl-ecosys(dot)com>, <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: DBMS Engines and Performance |
Date: | 2007-01-31 08:57:21 |
Message-ID: | 7F10D26ECFA1FB458B89C5B4B0D72C2B8D773C@sesrv12.wirelesscar.com |
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Lists: | pgsql-general |
> However, what puzzles me is this statement: "PostgreSQL has
continued
> to
> fall behind other database engines in both performance and features,
so I
> don't see compelling reason to work on it in my very limited free
time."
http://pda.tweakers.net/?reviews/649
http://pda.tweakers.net/?reviews/661
http://forums.mysql.com/read.php?25,93181,93181
http://london.pm.org/pipermail/london.pm/Week-of-Mon-20051219/000637.htm
l
http://mailman.fastxs.net/pipermail/dbmail/2006-December/010754.html
I'm tired of teenage 1337 skill0rz PHP hackers who go "whoaah, 0ms!"
after running "select count(*) from forum_posts" in a single thread (the
developer himself testing his app), and then claim "MySQL rocks! I
tested the postgres 7.1 that came with <insert linux distro of choice
here>, but it was twice as slow!!!! Postgres sucks!"
Ask them what they know about concurrency: transaction isolation level,
MVCC vs. locking, and how they do when they test OLTP performance in
highly concurrent scenarios, and I'm sure you'll get a "huh?" as an
answer.
Kids...
____________________________________________
Mikael Carneholm
Systems Engineer
WirelessCar AB
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