home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!pipex!bnr.co.uk!stc!nnsgs50!rap
- From: rap@nnsgs50.tcom.stc.co.uk (Richard Porter)
- Newsgroups: comp.sys.acorn.tech
- Subject: Re: adfsbuffers
- Date: 18 Dec 1992 13:28:31 GMT
- Organization: BNR Europe Limited
- Lines: 23
- Message-ID: <1gsjlvINN6p1@bnsgd245.bnr.co.uk>
- References: <1992Dec18.113330@informatik.uni-kl.de>
- NNTP-Posting-Host: nnsgs50.lon40.nt.com
-
- In article <1992Dec18.113330@informatik.uni-kl.de>
- m_sattle@informatik.uni-kl.de (Matthias Sattler) writes:
- >What are adfsbuffers really good for?
-
- >They should speed up the (hard)disc access but in fact they don't.
- >I tried many different tests (hd-speed tests, compiling c programs, ...)
- >on the harddisc of my A540 (RO2) with adfsbuffers 0 and adfsbuffers 256k.
- >EVERY test with adfsbuffers configured was slightly slower than the test
- >without adfsbuffers.
- >Hmmmmmm... funny isn't it?
-
- Well, it's interesting that you should say that, but it doesn't concur
- with my experience on an A5000. With ADFSbuffers set to 16 as in the
- supplied configuration I found that Acorn DTP fell over at the slightest
- excuse, particularly if you gave it anything difficult to do or didn't
- give it all the available gigabytes before you started. The cure for this
- was to set ADFSbuffers to 0.
-
- Having done this I noticed that the desktop appeared to be much slower
- and there was much more hard disk activity while it was redrawing windows,
- particularly !Draw windows with a lot of text using disk-held fonts.
-
- Richard
-