Re: [ANNOUNCE] DualFS: File System with Meta-data and Data Separation

From: JÃrn Engel
Date: Sat Feb 17 2007 - 11:35:54 EST

On Fri, 16 February 2007 18:47:48 -0500, Bill Davidsen wrote:
> >
> Actually I am interested in the common case, where the machine is not
> out of space, or memory, or CPU, but when it is appropriately sized to
> the workload. Not that I lack interest in corner cases, but the "running
> flat out" case doesn't reflect case where there's enough hardware, now
> the o/s needs to use it well.

There is one detail about this specific corner case you may be missing.
Most log-structured filesystems don't just drop in performance - they
can run into a deadlock and the only recovery from this is the lovely
backup-mkfs-restore procedure.

If it was just performance, I would agree with you.


He that composes himself is wiser than he that composes a book.
-- B. Franklin
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