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Article #884

Re: Mach RPC Throughput...

#884
From: Doug Schmidt
Date: Tue, 19 Mar 1991 16:36
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In article <MORSE.91Mar18110412@quark.mpr.ca> 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)|
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!jarthur!ucivax!schmidt
References: <MORSE.91Mar14091659@quark.mpr.ca> <9332@star.cs.vu.nl> <MORSE.91Mar18110412@quark.mpr.ca>

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Path: arc1-ca.pugleaf.net!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: <MORSE.91Mar14091659@quark.mpr.ca> <9332@star.cs.vu.nl> <MORSE.91Mar18110412@quark.mpr.ca>
Reply-To: schmidt@ics.uci.edu (Doug Schmidt)
Distribution: comp
Organization: University of California at Irvine: ICS Dept.
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