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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!uwm.edu!lll-winken.llnl.gov!enews.sgi.com!infohub.wpd.sgi.com!fido.asd.sgi.com!slovax!lm From: lm@slovax.engr.sgi.com (Larry McVoy) Newsgroups: comp.unix.bsd Subject: Re: ffs & sunos? Date: 18 Nov 1994 23:01:22 GMT Organization: Silicon Graphics Inc., Mountain View, CA Lines: 30 Message-ID: <3ajbo2$kc9@fido.asd.sgi.com> References: <3ahflh$og3@spruce.cic.net> Reply-To: lm@slovax.engr.sgi.com NNTP-Posting-Host: slovax.engr.sgi.com X-Newsreader: TIN [version 1.2 PL2] Umm, I was the last person to do any significant work in Sun's file system, UFS, (you can get the paper on it by mailing to archives@slovax.engr.sgi.com) and I think someone has forgotten to tell you that Sun's file system *is* BSD's FFS, converted to use vnodes (the right way; the BSD way is a half way point that Sun passed back around SunOS 3.5) and modified to run at the disk speed for sequential I/O (I did that part). Putting BSD's FFS in SunOS would do nothing but slow SunOS down. On the other hand, you could have a lot of fun with the stacking file systems - see usr/src/miscfs/union_fs for example. Paul Southworth (pauls@locust.cic.net) wrote: : Has anyone tried playing around with implementing the 4.4BSD ffs under : SunOS 4.x? Any problems inherent in trying it apart from needing : kernel sources, perhaps? (ie, is this a ridiculous idea?) : Although I know and love NetBSD, I am still interested in playing with : performance-enhancing additions to SunOS... : -- : Paul Southworth : CICNet Systems Support : pauls@cic.net -- --- Larry McVoy (415) 390-1804 lm@sgi.com