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- Xref: sparky comp.sys.amiga.hardware:22037 comp.sys.amiga.misc:19031
- Path: sparky!uunet!gatech!paladin.american.edu!howland.reston.ans.net!news.ans.net!malgudi.oar.net!hyperion!desire.wright.edu!fheitkamp
- From: fheitkamp@desire.wright.edu
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: Re: GVP Series 2 controller in A4000
- Message-ID: <1992Dec24.070538.6348@desire.wright.edu>
- Date: 24 Dec 92 07:05:38 EST
- References: <jKS8s*1H0@prolix.apana.org.au> <1Zabs*OL0@prolix.apana.org.au>
- Organization: Wright State University
- Lines: 46
-
- In article <1Zabs*OL0@prolix.apana.org.au>, dac@prolix.apana.org.au (Andrew Clayton) writes:
- > In article <1992Dec20.100004.6299@desire.wright.edu>, fheitkamp@desire.wright.edu writes:
- >
- >> In article <11X9s*LI0@prolix.apana.org.au>, dac@prolix.apana.org.au (Andrew Clayton) writes:
- >> > In article <1992Dec16.181454.13559@isunix.cdx.mot.com>, Mark Montminy writes:
- >> >
- >> > I eventually mounted my Quantum Pro 210 in the A4000, on the GVP
- >> > Series II card, and it works okay. A bit noisier than it was
- >> > though. The advice from the previous poster about backing it up
- >
- >> Did you run any speed tests? If so, how did it do?
- >
- > Yes.
- >
- > It went awful.
- >
- > Sysinfo 3.01 reported 750KB/Sec, whereas in my A2500/30 the same
- > drive/controller was pushing 1.4Mb/sec.
- >
- > But it's still usable.
-
- Could be worse, 750KB/sec should be useable. Have you tried
- copying really large files or several drawers at once?
-
- >
- > I am at a loss to explain the performance problem.
-
- I thought I read that the ZorroII SCSI cards "kick down" to PIO
- in a ZorroIII machine because of DMA limitations. That is why
- they are slower. A more knowlegable person could comment.
-
- >
- > The 120MB IDE drive pushes over 1MB/sec in raw read speed.
-
- I think the IDE controller is also PIO, but has 32bit memory
- access. I'm waiting for a 32bit, ZorroIII DMA, SCSI controller.
- Hope their not too expensive when they appear.
-
- >
- > Dac
- > --
- > dac@prolix.apana.org.au David Andrew Clayton. // _| _ _
- > dac@prolix.sserve.cc.adfa.oz.au Canberra, Australia \X/ (_](_](_
- > <Using ARN on an Amiga 4000. Yay!>
- Fred Heitkamp, ** Not an organization **
-
-