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- Path: sparky!uunet!spool.mu.edu!uwm.edu!linac!att!cbnewsc!cbfsb!att-out!rutgers!cmcl2!rlgsc.com!gezelter
- From: gezelter@rlgsc.com
- Newsgroups: comp.arch,comp.sys.dec,comp.sys.sgi,comp.sys.hp
- Subject: Re: Comparison of Alpha, MIPS and PA-RISC-II wanted
- Message-ID: <1992Dec21.103432.294@rlgsc.com>
- Date: 21 Dec 92 15:34:32 GMT
- References: <1992Dec19.012355.26665@ll.mit.edu> <BzIG5M.GDo@pix.com> <BzIxqo.C90@dscomsa.desy.de> <BzKGKB.2Bp@pix.com>
- Organization: Robert Gezelter Software Consultant, Flushing, NY
- Lines: 39
-
- In article <BzKGKB.2Bp@pix.com>, stripes@pix.com (Josh Osborne) writes:
- > The we need a way for user level code to tell the OS what file info is
- > important to cache, and what isn't. Then you can be almost as efficent
- > as VMS/RMS (you will have extra context switch overhead for the extra
- > syscalls), but you will still be able to allow any user to create new
- > filetypes.
- > --
- > stripes@pix.com "Security for Unix is like
- > Josh_Osborne@Real_World,The Multitasking for MS-DOS"
- > "The dyslexic porgramer" - Kevin Lockwood
- > We all agree on the necessity of compromise. We just can't agree on
- > when it's necessary to compromise. - Larry Wall
- --
- Josh,
-
- Important point that you bring up tangentially in your post.
- While VMS does provide RMS as an operating system service, there
- is nothing which prevents you from "folling your own" type of
- file structure. However, every program which wants to read from
- your special file structure will have to be intimately familiar
- with it. Programs which use RMS can process files which were
- created using RMS with no problems.
-
- A misnote about the HSC which appeared in this thread. The HSC
- does not really know anything about the content of the disk
- files. However, RMS will do things inside of the CPU, such as
- maintain index caches on a system wide basis, which are a
- signifigant performance improvement. One problem with rolling
- yourself is that, invariably, the management and monitoring tools
- and utilities are bare-bones.
-
- - Bob
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