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Date: Mon, 12 Nov 2001 17:40:05 -0700
From: "Peter J . Braam" <braam@clusterfilesystem.com>
To: Andrew Morton <akpm@zip.com.au>, Steve Lord <lord@sgi.com>,
        Ben Israel <ben@genesis-one.com>, linux-kernel@vger.kernel.org,
        "Peter J . Braam" <braam@clusterfilesystem.com>
Subject: Re: File System Performance
Message-ID: <20011112174005.N4281@lustre.dyn.ca.clusterfilesystem.com>
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In-Reply-To: <20011112171705.Z1778@lynx.no>; from adilger@turbolabs.com on Mon, Nov 12, 2001 at 05:17:05PM -0700
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The KML in fact doesn't record the writes.  I don't have a large KML,
but it is easy to set one up.  Let me know if you need a hand.

- Peter -

On Mon, Nov 12, 2001 at 05:17:05PM -0700, Andreas Dilger wrote:
> On Nov 12, 2001  12:41 -0800, Andrew Morton wrote:
> > BTW, I've been trying to hunt down a suitable file system aging tool.
> > We're not very happy with Keith Smith's workload because the directory
> > infomation was lost (he was purely studying FFS algorithmic differences
> > - the load isn't 100% suitable for testing other filesystems / algorithms).
> >   Constantin Loizides' tools are proving to be rather complex to compile,
> >   drive and understand.
> 
> What _may_ be a very interesting tool for doing "real-world" I/O generation
> is to use the InterMezzo KML (kernel modification log), which is basically
> a 100% record of every filesystem operation done (e.g. create, write,
> delete, mkdir, rmdir, etc).
> 
> Peter, do you have any very large KML files which would simulate the usage
> of a filesystem over a long period of time, or would Tacitus have something
> like that?
> 
> Cheers, Andreas
> --
> Andreas Dilger
> http://sourceforge.net/projects/ext2resize/
> http://www-mddsp.enel.ucalgary.ca/People/adilger/
> 

-- 
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