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- Path: soap.news.pipex.net!pipex!usenet
- From: m.hendry@dial.pipex.com (Mathew Hendry)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Cache programs (was: DCFS vs FFS on HARDRIVE)
- Date: Wed, 7 Feb 96 15:02:30
- Organization: Private node.
- Distribution: world
- Message-ID: <19960207.430F00.D972@aj171.du.pipex.com>
- References: <4elrc4$erl@ohnasn01.sinet.slb.com> <9602010133.AA0026k@g4wyc.demon.co.uk> <1357.6608T795T2954@netspace.net.au> <4f9l8h$qau@calum.csclub.uwaterloo.ca>
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-
- Mike Seid (jmseid@calum.csclub.uwaterloo.ca) wrote:
- : In article <1357.6608T795T2954@netspace.net.au>,
- : Paul Dossett <astroboy@netspace.net.au> wrote:
- : : >>
- : : >> I hope this isn't too far off topic, but has anyone tested the C=
- : : >> Directory-Cacheing File System versus plain old Fast or international
- : : >> Fast file system with a hard drive.
- : :
- : : I wouldn't flame you, it's your decision.. but be aware that DC-FFS is eating
- : : some of your HD space and you'd be better off using FFS-International and a
- : : decent HD cache program.
- :
- : What program would you recommend? I've tried PowerCache from Aminet, but
- : it hasn't been updated for over a year. It hangs my A4000 sometimes, so
- : I'm not going to trust it to cache writes. :)
-
- I use an early version of HyperCache, which I got from a coverdisk some time
- back. This has proved to be very stable, and serves its purpose. A second
- version of this was released commercially, but I'm not sure if it's still
- available.
-
- According to various reports I have heard, the best Amiga disk cache program
- is DynamiCache. AFAIK, this was never released as a seperate program, but
- comes with certain HD controller cards. Hunt around and you may be able to
- find it.
-
- DynamiCache's main advantage is that you can set the cache size as large as
- you want, and the memory used by it will be freed automatically if any
- program needs to use it (in much the same way as unused shared libraries are
- automatically flushed from the system as needed). Thus you can have the cache
- using nearly all your available memory, which gives substantial speed
- advantages over those caching programs (like mine) which allocate a fixed
- amount of memory which is subsequently unavailable to any other program.
-
- I tried PowerCache myself, and it proved unstable for me too, so I trashed it.
-
- Another one I tried was FastCache, which didn't appear to live up to its name,
- and also used up unacceptable amounts of CPU time, due to its fully
- associative design. It was pretty stable, though.
-
- So, in order, I would recommend:
-
- 1. DynamiCache (if you can find it)
- 2. HyperCache (ditto)
- 3. FastCache (if you can put up with its (non lethal) problems)
- 4. PowerCache
-
- -- Mat.
-