Re: Performance on 8CPU's and 32GB of RAM

From: Florian Weimer <fweimer(at)bfk(dot)de>
To: "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com>
Cc: "Trevor Talbot" <quension(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Performance on 8CPU's and 32GB of RAM
Date: 2007-09-07 08:17:11
Message-ID: 82ir6mnb3s.fsf@mid.bfk.de
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* Scott Marlowe:

> And there's the issue that with windows / NTFS that when one process
> opens a file for read, it locks it for all other users. This means
> that things like virus scanners can cause odd, unpredictable failures
> of your database.

I think most of them open the file in shared/backup mode. The only
lock that is created by that guards deletion and renaming. It can
still lead to obscure failures, but it's not a wholly-eclusive lock.

--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99

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