Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!hp4nl!ruuinf!praxis!atari
From: atari@praxis.cs.ruu.nl (Atari-ST Software)
Newsgroups: comp.sys.atari.st
Subject: Re: disk caches  for 1040ST
Message-ID: <2436@ruuinf.cs.ruu.nl>
Date: 14 Feb 90 09:53:03 GMT
References: <3561@tahoe.unr.edu> <BAMMI.90Feb12234717@dsrgsun.ces.CWRU.Edu>
Sender: news@ruuinf.cs.ruu.nl
Lines: 20

In article <BAMMI.90Feb12234717@dsrgsun.ces.CWRU.Edu> bammi@dsrgsun.ces.CWRU.Edu (Jwahar R. Bammi) writes:

>In article <3561@tahoe.unr.edu> mikew@wheeler (Mike Whitbeck) writes:
>> I also tried dcache (Dijkstra). I believe it only caches read
>> buffers and not write. I would like to cache both read/write
>> operations (floppy and hard disks) and have control over
>> flushing the buffers (e.g. a 'sync' command).

>	Dcache does all of the above. (sync via 'dcache =f' if i remember
>correctly, or via the supplied ACC). It can optionally *not* write
>through.

Correct.

However if you want to use dcache on a floppy
you have to be careful (the manual also warns for this):
- Don't change floppies without 'invalidating' and syncing the cache
  for a floppy.
- Formatting a floppy from the desktop with a cache for the
  floppydrive turned on fails.