Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!ncar!noao!arizona!lm From: lm@arizona.edu (Larry McVoy) Newsgroups: comp.unix.wizards Subject: Re: Why UNIX I/O is so slow (was VAX vs SUN 4 performance) Keywords: actually FSS vs VNODE Message-ID: <6032@megaron.arizona.edu> Date: 29 Jun 88 01:12:28 GMT References: <22957@bu-cs.BU.EDU> <14968@brl-adm.ARPA> <601@modular.UUCP> <23288@bu-cs.BU.EDU> <7980@alice.UUCP> <23326@bu-cs.BU.EDU> <6963@cit-vax.Caltech.Edu> <441@mn-at1.k.mn.org> <8124@brl-smoke.ARPA> Reply-To: lm@megaron.arizona.edu (Larry McVoy) Organization: U of Arizona CS Dept, Tucson Lines: 9 In article <8124@brl-smoke.ARPA> gwyn@brl.arpa (Doug Gwyn (VLD/VMB)) writes: >Such considerations should lead to the conclusion that each type of >filesystem may need its own access algorithms (perhaps in an I/O >processor). This is easy to arrange via the File System Switch. Do the wizards have a preference (based on logic, not religion, one presumes) between the file system switch and the vnode method of virtualizing file systems? Anyone looked into both? -- Larry McVoy laidbak!lm@sun.com 1-800-LAI-UNIX x286