Article View: comp.sys.acorn.tech
Article #689Re: adfsbuffers
From: Richard Porter
Date: Fri, 18 Dec 1992 13:28
Date: Fri, 18 Dec 1992 13:28
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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
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Path: arc1-ca.pugleaf.net!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