Re: Testing of filesystems

From: Andrew Morton (akpm@zip.com.au)
Date: Sun Aug 11 2002 - 04:44:00 EST


Hans Reiser wrote:
>
> Tom Vier wrote:
>
> >On Tue, Jul 30, 2002 at 11:49:02AM +0200, Axel Siebenwirth wrote:
> >
> >
> >>I wonder what a good way is to stress test my JFS filesystem. Is there a tool
> >>
> >>
> ><snip>
> >
> >fsx.c came up a while ago on l-k. it's an old (but still very useful) fs
> >stressor(sp) from neXT. i have a copy davej modded for linux. if you can't
> >find it, i can send it to you. i haven't been brave enough to run it myself,
> >on my alpha's reiserfs. 8) it found some hard to find bugs in ext2 that were
> >lurking for years (iirc).
> >
> >
> >
> It found bugs in reiserfs and we fixed them.:)

fsx-linux is great. Caused me no end of grief in 2.5.13. Running
it on small blocksize fs alongside really heavy memory pressure
touches all sorts of corner cases.

I have a version which is tricked up to understand O_DIRECT
in http://www.zip.com.au/~akpm/linux/ext3-tools.tar.gz
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