Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id B429464FC26 for ; Wed, 24 Sep 2008 07:18:55 -0300 (ADT) Received: from postgresql.org ([200.46.204.86]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 69549-06 for ; Wed, 24 Sep 2008 07:18:46 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from viefep33-int.chello.at (viefep18-int.chello.at [213.46.255.22]) by postgresql.org (Postfix) with ESMTP id D693164FC21 for ; Wed, 24 Sep 2008 07:18:44 -0300 (ADT) Received: from [192.168.1.103] (really [89.134.230.13]) by viefep31-int.chello.at (InterMail vM.7.08.02.02 201-2186-121-104-20070414) with ESMTP id <20080924101831.BTSE27262.viefep31-int.chello.at@[192.168.1.103]> for ; Wed, 24 Sep 2008 12:18:31 +0200 Message-ID: <48DA13EF.3060103@shopzeus.com> Date: Wed, 24 Sep 2008 12:18:23 +0200 From: Laszlo Nagy User-Agent: Thunderbird 2.0.0.16 (X11/20080724) MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: UFS 2: soft updates vs. gjournal (AKA: Choosing a filesystem 2.) Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=2.125 tagged_above=0 required=5 tests=DNS_FROM_RFC_BOGUSMX=2.125 X-Spam-Level: ** X-Archive-Number: 200809/215 X-Sequence-Number: 31528 Hi again, Should I use gjournal on FreeBSD 7? Or just soft updates? Here is my opinion: I suspect that gjournal would be much slower than soft updates. Also gjournal is relatively new code, not very well tested. But gjournal is better when the system crashes. Although I have heard that sometimes gjournal will crash the system itself. There are more pros for soft updates I would pefer that. But please let me know if I'm wrong. Thanks, Laszlo