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Re: UFS 2: soft updates vs. gjournal (AKA: Choosing a filesystem 2.)

From: "Claus Guttesen" <kometen(at)gmail(dot)com>
To: "Laszlo Nagy" <gandalf(at)shopzeus(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: UFS 2: soft updates vs. gjournal (AKA: Choosing a filesystem 2.)
Date: 2008-09-24 10:39:23
Message-ID: b41c75520809240339t7f74278eu4d314b5f4b21b7f5@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-performance
> 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.

If softupdates suites your needs why not just use that? :-) Is
performance adequate with softupdates? I have a 103 GB db on FreeBSD
7.0 and softupdates and it has survived one unplanned stop when we had
a power-outage lasting some hours.

-- 
regards
Claus

When lenity and cruelty play for a kingdom,
the gentler gamester is the soonest winner.

Shakespeare

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Subject: Re: UFS 2: soft updates vs. gjournal (AKA: Choosing a filesystem 2.)
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