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- Path: sparky!uunet!gatech!concert!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340
- From: dic5340@hertz.njit.edu (David Charlap)
- Newsgroups: comp.os.os2.advocacy
- Subject: Re: 32 Bit HPFS
- Keywords: HPFS
- Message-ID: <1993Jan4.195841.27053@njitgw.njit.edu>
- Date: 4 Jan 93 19:58:41 GMT
- References: <1993Jan2.181023.20211@midway.uchicago.edu> <9HTRwB3w165w@tcscs.UUCP>
- Sender: news@njit.edu
- Organization: New Jersey Institute of Technology, Newark, N.J.
- Lines: 43
- Nntp-Posting-Host: hertz.njit.edu
-
- In article <9HTRwB3w165w@tcscs.UUCP> zeta%tcscs@src.honeywell.com writes:
- >Forgive the obvious stupid question. With OS/2 being such multitasking,
- >there would be several useful features found in networks which would be
- >useful for a stand alone system as well. Of course I dont know much about
- >LAN's and such, the only multiuser OS I'm familier with is VMS. I'm talking
- >about more abilities with file sharing, especially amongst files between
- >several tasks. More so if it makes programs not normally friendly for file
- >access work more reliably in a shared environment.
-
- OS/2 has this in FAT and HPFS already. HPFS386 adds multi-USER
- features, such as security to keep each user's private files isolated
- from each other. And reference counts on open files, so you can
- enforce licenses by restricting the number of users that can execute a
- program at once, etc., etc.
-
- >> Lest anyone panic, 32-bit purely for the sake of 32-bit isn't such a
- >> hot idea.
- >
- >While this is true for the hardware, it still seems that 32-bit disk interface
- >software could still increase performance. I'm not very familier with the
- >two version file system in OS/2, other than that HPFS is very quick, and the
- >FAT version is a lot faster than in DOS systems. it seems that for some things
- >HPFS is slower than a FAT system. If it were to go 32 bit, wouldn't the HPFS
- >be faster all the time?
-
- FAT vs. HPFS is a moot point - long filenames and built-in EA's make
- the performance differences immaterial to me.
-
- As for HPFS vs. a 32-bit recompilation of HPFS, I doubt you'll gain
- much. The bulk of the processing will still be in reading/writing
- data, and that will depend on your hardware (and device drivers) not
- the IFS. The only clear advantage I can see is in making the cache
- 32-bit, to free it from the accursed 64K segment size. I think the
- simpler cache management will speed things up a bit. I think the rest
- of the improvements will be marginal. But still, since HPFS386 has
- already been written, it would be nice to have it around anyway.
- Perhaps as an option so some can choose the HPFS16 and use less
- memeory on it.
- --
- |) David Charlap | .signature confiscated by FBI due to
- /|_ dic5340@hertz.njit.edu | an ongoing investigation into the
- ((|,) | source of these .signature virusses
- ~|~
-