Date: Wed, 20 Jul 2005 11:11:19 +0100 From: Alex Zbyslaw <xfb52@dial.pipex.com> To: Zev Thompson <zev@interchange.ubc.ca> Cc: questions@freebsd.org Subject: Re: Journaling vs. Softupdates Message-ID: <42DE2347.4040203@dial.pipex.com> In-Reply-To: <opst7gejj7pxwg44@mail.interchange.ubc.ca> References: <opst7gejj7pxwg44@mail.interchange.ubc.ca>
next in thread | previous in thread | raw e-mail | index | archive | help
Zev Thompson wrote: > Apparently one of the Google Summer of Code projects is to add > journaling to UFS. When it already has softupdates, why? I've seen > benchmarks that seem to indicate that softupdates performs as well or > better in most cases, though I have nothing on hand to substantiate > that. I thought the only real disadvantages of softupdates were: > > - harder to code and implement (though this is already done, so should > not be an issue) > - sometimes deleting files does not free space right away > > Possibility of data loss, I'm guessing, is the same with either. > Filesystem corruption is similarly very unlikely. > > So why the change? Thanks in advance for any answers. Large filesystems without journaling take too long to fsck. There's plenty of messages about this out there, otherwise I wouldn't have know the answer :-) --Alex
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?42DE2347.4040203>