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- Path: sparky!uunet!cs.utexas.edu!sun-barr!olivea!hal.com!darkstar.UCSC.EDU!keller
- From: keller@cse.ucsc.edu (Jeffrey Keller)
- Newsgroups: comp.os.linux
- Subject: Re: GNU kids on the block? (sorry... couldn't resist)
- Keywords: Linux, Mach, CISC, RISC
- Message-ID: <17m6sbINN64o@darkstar.UCSC.EDU>
- Date: 28 Aug 92 21:46:51 GMT
- References: <1992Aug25.123854.26792@uwm.edu> <1992Aug25.195316.9174@kithrup.COM> <1992Aug27.135703.9312@crd.ge.com>
- Organization: University of California, Santa Cruz (CE/CIS Boards)
- Lines: 37
- NNTP-Posting-Host: oak.ucsc.edu
-
- In article <1992Aug27.135703.9312@crd.ge.com> davidsen@crd.ge.com (bill davidsen) writes:
- ...
- > Multi-server is the CISC
- >of software, a sort of hypercube of processes rather than processors.
- ...
- >
- > I like the Linux RISC-like approach, do only a few things, but very
- >well and very fast. Build the complex functions out of sequences of
- >simple operations. To me this means simple kernel calls and the library
- >providing the complex stuff.
- >
- > Don't take this as a rejection of multi-server by me, I'm unconvinced
- >rather than convinced against. Sort of a software agnostic.
- >
- >--
- >bill davidsen, GE Corp. R&D Center; Box 8; Schenectady NY 12345
- > I admit that when I was in school I wrote COBOL. But I didn't compile.
-
- You realize that microkernel people would take the opposite position,
- right? That the microkernel is RISC-like, stripped down to the
- essentials, with the server processes corresponding to subroutines?
- And that a conventional kernel (even Linux) is CISC-like, trying to
- anticipate what the user will need and handle it internally? And, of
- course, they'd probably argue that just as it is easier to tweak a
- subroutine than microcode, it's easier to tweak a discrete server than
- a part of the kernel. Just an observation.
-
- By the way, I also have mixed feelings about microkernels. On the one
- hand, I don't believe they can ever be as efficient as macrokernels;
- on the other, (despite what Larry McVoy says) I believe that further
- evolution of OSes is essential and that microkernels can foster that.
- I also think that it might be easier to make a microkernel secure,
- but I'm not at all sure of it.
-
- --
- Jeff Keller <keller@cse.ucsc.edu> CIS Board, UCSC
- "If X is the answer, what was the question?" --David Fuller
-