Jörn Engel wrote:
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.
I missed that. Which corner case did you find triggers this in DualFS?
If it was just performance, I would agree with you.
--
bill davidsen <[email protected]>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
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