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

[Bill Davidsen]

JÃrn 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 <davidsen@xxxxxxx>
 CTO TMR Associates, Inc
 Doing interesting things with small computers since 1979


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