Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!zaphod.mps.ohio-state.edu!van-bc! From: lphillips@lpami.wimsey.bc.ca (Larry Phillips) Newsgroups: comp.sys.amiga.hardware Subject: Re: GVP Trade-in Message-ID: <1918@lpami.wimsey.bc.ca> Date: 1 Sep 90 12:43:21 GMT Lines: 34 Return-Path: To: van-bc!rnews In , jmpor@dynam.UUCP (J-M Porchet) writes: >That's not true, for examples the KRONOS controller with a good HD >(siemens megafile 300 MB )can sustain a transfer of over 1 MBYTE/s >and it is even more faster with a 020 or 030. > >personally, I use the kronos with two seagate 157N and with a >50 MHZ 030 from GVP and the controller sustain a rate of 800 KB/S >(not very much but the 157N is very very slow). Giving a transfer rate is meaningless unless you specify (a) What you are measuring. (b) What you are measuring it with. I get particularly suspicious when people quote speeds of the Kronos controller without stating the program used for measurement. This is due to the former head of C Ltd., being such a rabid purveyor of misinformation and hype, that he felt it necessary to commission a program that measures the raw speed of the drive, ie. raw reads using the device driver directly, in an attempt to match the figures of the more common measurement programs. While the Kronos is remarkable for a non-DMA controller, it still falls short in the area of best usage of the CPU and system resources, and does not measure up well when using a program that truly measures efficiency, such as DiskSpeed. -larry -- It is not possible to both understand and appreciate Intel CPUs. -D.Wolfskill +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+