Re: FreeBSD Softupdates??

From: Alfred Perlstein <bright(at)wintelcom(dot)net>
To: Dale Walker <dale(at)icr(dot)com(dot)au>
Cc: PostgreSQL General List <pgsql-general(at)postgresql(dot)org>
Subject: Re: FreeBSD Softupdates??
Date: 2000-09-26 10:20:31
Message-ID: 20000926032031.T9141@fw.wintelcom.net
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* Dale Walker <dale(at)icr(dot)com(dot)au> [000926 01:02] wrote:
>
> Just a quick q.
>
> Does anyone know what effects FreeBSD's 'softupdates' would have
> on the /usr/local/pgsql/data filesystem.
>
> Would this help performance, or would it be a shot in the foot??

It can cause problems because softupdates makes meta data changes
(in this case file creation/removal) asyncronously, the same actually
happens with most other logging filesystems that don't support
transactions.

Since afaik postgresql doesn't use lots and lots of tempfiles you
may want to play it safe and not use softupdates.

--
-Alfred Perlstein - [bright(at)wintelcom(dot)net|alfred(at)freebsd(dot)org]
"I have the heart of a child; I keep it in a jar on my desk."

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