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- Path: informatik.tu-muenchen.de!fischerj
- From: fischerj@informatik.tu-muenchen.de (Juergen "Rally" Fischer)
- Newsgroups: comp.sys.amiga.programmer,comp.sys.amiga.hardware
- Subject: Re: Blizzard 1230IV how good ?
- Date: 29 Feb 1996 11:38:20 GMT
- Organization: Technische Universitaet Muenchen, Germany
- Distribution: world
- Message-ID: <4h437c$hlh@sunsystem5.informatik.tu-muenchen.de>
- References: <42116493@phoenix.owl.de> <1219.6615T886T2318@Redrobe.demon.co.uk> <38232436@kone.fipnet.fi> <1996Feb26.071134.3049@scala.scala.com>
- NNTP-Posting-Host: hphalle3g.informatik.tu-muenchen.de
- Originator: fischerj@hphalle3g.informatik.tu-muenchen.de
-
-
- In article <1996Feb26.071134.3049@scala.scala.com>, scott@scala.scala.com ("Scott Drysdale") writes:
- |> References: <42116493@phoenix.owl.de> <1219.6615T886T2318@Redrobe.demon.co.uk> <38232436@kone.fipnet.fi>
- |> Organization: US Research and Development - Scala Inc.
- |> Lines: 30
- |> Xref: informatik.tu-muenchen.de comp.sys.amiga.programmer:88010 comp.sys.amiga.hardware:124080
- |>
- |> In article <38232436@kone.fipnet.fi> "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi> writes:
- |> >
- |> >> ╗ Memory Speed Test ½
- |> >> Copyright 1996 by Frank Wille.
- |> >>
- |> >> Type read write
- |> >> Chip Ram 3742 kB/s 5747 kB/s
- |> >> Fast Ram 11908 kB/s 15843 kB/s
- |> >> -------
- |> >>
- |> >> This is in a 32col dblpal 720x520 screen (wb)
- |> >>
- |> >> I can get chip r/w 4349/6890 kB/s on a 2 colour screen :9
- |> >> ^^^^
- |> >> so thats approaching 7Mb/sec
- |> >>
- |> >> anybody care to explain why writes are faster than reads?
- |> >
- |> >Hmm. At least a programmer can insert free instruction
- |> >after a CHIP-write but not after a CHIP-read. Dont know..
- |> >Maybe some HW expert has an explanation?
- |>
- |> writes are probably faster than reads on certain hard drives because the
- |> drive can accept the data for the write but do the actual writing later.
- |> ie, the write doesn't have to wait for the heads to move and the disk to
- |> spin to the proper sector.
-
- I hope the Blizzard won't redirect chipmem writes to Harddisk :D
-
- |>
- |> --
- |> Scott Drysdale // Scala Inc. // scott@scala.com // 1960 HD FLH // AMIGA!
- |> Sanitation Engineer // "where you gonna go when your 8520's blow?"
- ------------------------------------------------------------------------
- fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
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