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Xref: sserve comp.unix.bsd:6613 comp.unix.ultrix:14396 comp.unix.solaris:362 Newsgroups: comp.unix.bsd,comp.unix.ultrix,comp.unix.solaris Path: sserve!manuel.anu.edu.au!munnari.oz.au!hp9000.csc.cuhk.hk!uakari.primate.wisc.edu!usenet.coe.montana.edu!rpi!psinntp!psinntp!ptsys1!jjg From: jjg@pt.com (John Grana) Subject: Re: Unix with real time performance ? Message-ID: <1992Oct14.003850.10076@pt.com> Organization: Performance Technologies, Incorporated References: <1992Oct9.024816.3814@lna.oz.au> <1992Oct10.211721.5925@decuac.dec.com> Date: Wed, 14 Oct 1992 00:38:50 GMT Lines: 26 In article <1992Oct10.211721.5925@decuac.dec.com> mjr@hussar.dco.dec.com (Marcus J. "Buddy can you spare a clue?" Ranum) writes: >>Many >>OS vendors claim their product will have "increased real-time support" >>in their next release, but we need to know what is currently available >>to make desisions now. > > Depends on what kind of "real time" you want. If you want >hard real time, there isn't (to my knowledge) much in the way of >UNIX. There are several UNIX-likes that do hard real time, and I'd >suggest you look at Quantum's QNX or something like that. Another real time Unix is LynxOS. They have it running on SPARCstation 2 (sun4c arch.) and we have just recently brought up Lynx on a sun4m machine (our own PT-SYS5000). Lynx was written in a "clean room" and doesn't have any AT&T code in it. They support both SYS V and BSD systems calls. Also, since one of their technical gurus is vice chair of the POSIX committee, they follow this VERY well. Runs very fast on a 30 mips Mbus machine! -- ___________________________________________________________________________ |John Grana, Performance Technologies Incorporated jjg@pt.com| |315 Science Parkway, Rochester, New York 14620 uupsi!ptsys1!jjg| |Phone: (716) 256-0200 Fax: (716) 256-0791 |