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- From: dwp+@cs.cmu.edu (Doug Philips)
- Subject: Re: Documenting
- Message-ID: <C0K3r8.EsE.1@cs.cmu.edu>
- Summary: something salient, shortly stated, sadly seldom satoric
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- Organization: EIEI-U
- References: <C0CsnE.CrC@starnine.com> <C0D1tD.IyH.1@cs.cmu.edu> <peterd.726243633@pjd.dev.cdx.mot.com>
- Date: Fri, 8 Jan 1993 22:28:05 GMT
- Lines: 30
-
- In article <peterd.726243633@pjd.dev.cdx.mot.com> peterd@pjd.dev.cdx.mot.com (Peter Desnoyers) writes:
- +dwp+@cs.cmu.edu (Doug Philips) writes:
- +>Whoa a minute here. Most OS's (those that have EOL characters), also have
- +>file systems with allocations in units of sectors (or multiple-sector
- +>unitss), and bunches of tiny files will waste a lot of space. If this is
- +>really an issue, then let's be clear about it.
- +
- +On most UNIX machines, the smallest fragment that can be allocated is
- +between 1/2K and 2K. (1/8 to 1/4 of a block, with block size 4K or 8K)
- +In addition, some Unix file systems can store tiny files (e.g. <60
- +bytes) in the directory entry - i.e. for free. [see the recent
- +discussion in comp.os.linux.]
- +
- +Screens are *not* more efficient with regards to storage than file
- +systems.
-
- One of the assumptions made by various participants in this discussion
- is the size of the "code" to be stored (either in blocks or files). In
- addition, I was not comparing blocks in a Forth system to any
- particular implementation of a Unix file system. Without getting down to
- nitty gritties, the claim that screens are/aren't more efficient is
- vacuous at best and disingenuous at worst. The original claim, that lots
- of tiny files is more efficient than blocks in more likely than not to be
- false. Perhaps on an experimental Linux system it would be true, but not
- over most of the DOS/Amiga/Unix implementations out there.
-
- -Dou:
- --
- ---
- email to: dwp@willett.pgh.pa.us is preferred to From: address but both work.
-