Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!crdgw1!crdos1!davidsen From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) Newsgroups: comp.arch Subject: Re: *big iron* Message-ID: <658@crdos1.crd.ge.COM> Date: 29 Sep 89 23:42:27 GMT References: <21962@cup.portal.com> <1989Sep12.031453.22947@wolves.uucp> <22636@cup.portal.com> Reply-To: davidsen@crdos1.UUCP (bill davidsen) Organization: GE Corp R&D Center Lines: 23 Thanks for posting that data. It looks like a lot of other stuff previously posted as the DOS call level, so I have more faith at the BIOS level. Did you try a CORE test? It shows about 600KB for a cached RLL controller. If a disk is rotating at 3600 rpm, and there are 26 sectors of 512 bytes on each track, the burst rate is: 26*512*3600/60/1024 = 780 Where: 26 sectors 512 bytes/sector 3600 rpm 60 sec/min 1024 1K 780 kilobytes/sec I think that shows you are getting close to "all there is." -- bill davidsen (davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen) "The world is filled with fools. They blindly follow their so-called 'reason' in the face of the church and common sense. Any fool can see that the world is flat!" - anon