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Date: Sat, 17 Feb 2007 13:10:23 -0500 From: Bill Davidsen <davidsen@....com> To: Jörn Engel <joern@...ybastard.org> CC: Juan Piernas Canovas <piernas@...ec.um.es>, Jan Engelhardt <jengelh@...ux01.gwdg.de>, sfaibish <sfaibish@....com>, kernel list <linux-kernel@...r.kernel.org> Subject: Re: [ANNOUNCE] DualFS: File System with Meta-data and Data Separation 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 <davidsen@....com> CTO TMR Associates, Inc Doing interesting things with small computers since 1979 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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