Subject: Re: File system performance on i386
To: Christoph Hellwig <chhellwig@gmx.net>
From: David Brownlee <abs@netbsd.org>
List: tech-perform
Date: 02/23/2001 19:18:03
On Fri, 23 Feb 2001, Christoph Hellwig wrote:

> > > > Try sometimes some bigger disk activity (say, some untarring, deleting)
> > > > on Linux and BSD. Hit the power switch in the middle of operation.
> > > > Then compare the results on Linux and BSD after the disks are
> > > > fscked :)
> > >
> > > I usually lose more data on NetBSD - but fsck doesn't even NOTICE
> > > all lossage.
> >
> > Whose fsck doesn't notice?
>
> fsck_ffs on NetBSD (without softupdates, that is the comparism) compared
> to e2fsck on whatever OS you want.
>
> > What doesn't it notice?
>
> File data.

	For important data the program has the option of using fsync(),
	IIRC this doesn't do anything on ext2fs under linux, which was
	an unpleasant surprise.

		David/absolute		-- www.netbsd.org: No hype required --