Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!jarthur!ucivax!schmidt From: schmidt@crimee.ics.uci.edu (Doug Schmidt) Newsgroups: comp.os.mach Subject: Re: Mach RPC Throughput... Message-ID: <27E63E28.22880@ics.uci.edu> Date: 19 Mar 91 16:36:56 GMT References: <9332@star.cs.vu.nl> Reply-To: schmidt@ics.uci.edu (Doug Schmidt) Distribution: comp Organization: University of California at Irvine: ICS Dept. Lines: 25 Nntp-Posting-Host: crimee.ics.uci.edu In article morse@quark.mpr.ca (Daryl Morse) writes: ++ "nrmal (local) case" for Amoeba. One respondent, who asked to be ++ identified only as a "highly placed source" hinted that such a ++ comparision might soon be possible: ++ ++ >However, you might be interested to hear that X-kernel is being ++ >integrated into Mach as a basic, core system component. The new "Mach ++ >network message server" will actually be the X-kernel, ported to Mach. ++ >So, once this is running, I would assume that Mach will run at ++ >X-kernel speeds. Hum, did your highly placed source indicate whether the x-kernel support would run in the kernel or in user-space as another server? It seems that would make a big difference in terms of any significant speed-up, since a major win of the x-kernel is that it avoids context switches when moving from user-space to the kernel and vice versa. Does anyone have any further info about this? Doug -- His life was gentle, and the elements so | Douglas C. Schmidt Mixed in him that nature might stand up | (schmidt@ics.uci.edu) And say to all the world: "This was a man." | (714) 856-4101 -- In loving memory of Terry Williams (1971-1991)|