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Message-ID: <44462849.3070209@logix-tt.com>
Date: Wed, 19 Apr 2006 14:08:41 +0200
From: Markus Schaber <schabi@logix-tt.com>
Organization: Logical Tracking and Tracing International AG, Switzerland
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To: Magnus Hagander <mha@sollentuna.net>
Cc: Pgsql performance <pgsql-performance@postgresql.org>
Subject: Re: Inserts optimization?
References: <6BCB9D8A16AC4241919521715F4D8BCEA352AE@algol.sollentuna.se>
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Hi, Magnus,

Magnus Hagander wrote:

> Bacula already serializes access to the database (they have to support
> mysql/myisam), so this shouldn't help.

Ouch, that hurts.

To support mysql, they break performance for _every other_ database system?

<cynism>
Now, I understand how the mysql people manage to spread the legend of
mysql being fast. They convince software developers to thwart all others.
</>

Seriously: How can we convince developers to either fix MySQL or abandon
and replace it with a database, instead of crippling client software?

> Actually, it might well hurt by introducing extra delays.

Well, if you read the documentation, you will see that it will only wait
if there are at least commit_siblings other transactions active. So when
Bacula serializes access, there will be no delays, as there is only a
single transaction alive.


HTH
Markus

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

Fight against software patents in EU! www.ffii.org www.nosoftwarepatents.org