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- 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
- Lines: 26
-
- /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
-