Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!lavaca.uh.edu!menudo.uh.edu!sugar!ficc!peter From: peter@ficc.ferranti.com (Peter da Silva) Newsgroups: comp.unix.sysv386 Subject: Re: Xenix binary memory useage on 386 UNIX Message-ID: Date: 5 Nov 90 22:53:43 GMT References: <1990Nov1.225155.1087@metro.ucc.su.OZ.AU> <1990Nov02.141056.21439@virtech.uucp> Reply-To: peter@ficc.ferranti.com (Peter da Silva) Organization: Xenix Support, FICC Lines: 10 > Anyone know why Xenix binaries consume about 4 times the memory of > that used by the same program compiled under UNIX? BTW both are run on > the UNIX box. Is both code and data shown for Xenix executables on the ps > list? I don't know why in your case, but I have found that some Xenix-286 runtimes depend on some feature of Xenix whereby they can request a *segment* smaller than 64K. Unix System V with x286emul satisfies this request with a 64K segment. The effect of this can be easily imagined, and is one reason we are still using Xenix 286 on our 386 boxes. -- Peter da Silva. `-_-' +1 713 274 5180. 'U` peter@ferranti.com