Re: adfsbuffers

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#700

From: Matthias Sattler
Date: Fri, 18 Dec 1992 20:36

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/G=Owen/S=Smith/O=SJ-Research/ADMD=INTERSPAN/C=GB/@mhs-relay.ac.uk wrote:

>>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?
>
>Not really. Since the A540 has a SCSI hard disk, changing ADFSBuffers isn't
>going to make the slightest difference. What you need in this case is some
>SCSIFSBuffers, but Acorn SCSIFS doesn't support buffers. Brian Brunswick's
>SCSIFS does, and is obtainable as Partitions on Newcastle. ADFSBuffers
>should measurably speed up your ADFS floppy accesses, but be careful what
>sort of access you time. OS_GBPB random file access benefits a lot more than
>OS_File Load and Save.
>
>Owen.

Things definitely are slower with adfsbuffers configured.

Matthias Sattle

email: m_sattle@informatik.uni-kl.de

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Message-ID: <1992Dec18.213621@informatik.uni-kl.de>

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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!ira.uka.de!rz.uni-karlsruhe.de!stepsun.uni-kl.de!m_sattle
From: m_sattle@informatik.uni-kl.de (Matthias Sattler)
Subject: Re: adfsbuffers
Message-ID: <1992Dec18.213621@informatik.uni-kl.de>
Sender: news@rhrk.uni-kl.de
Organization: University of Kaiserslautern, Germany
References:  <ARM200-921218150833-37AC4*@MHS>
Date: Fri, 18 Dec 1992 20:36:21 GMT
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