Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!mcvax!dik
From: dik@cwi.nl (Dik T. Winter)
Newsgroups: comp.arch
Subject: Re: What is a Mainframe?
Message-ID: <8224@boring.cwi.nl>
Date: 28 Jun 89 00:33:04 GMT
References: <125@ssp1.idca.tds.philips.nl> <20752@winchester.mips.COM> <4400@ficc.uu.net> <187@uvacs.cs.Virginia.EDU> <355@torsqnt.UUCP> <33942@bu-cs.BU.EDU>
Distribution: comp.arch
Organization: CWI, Amsterdam
Lines: 14

In article <33942@bu-cs.BU.EDU> bzs@bu-cs.BU.EDU (Barry Shein) writes:
 > But I/O is the real point, 16 simultaneous channels pumping a terabyte
 > of disk farm while 200 ips tapes spin freely and 1000 or more users
 > are getting good interactive response...that's the idea and it takes
 > serious system architectural features to acheive that, you don't do
 > that with one board or simplistic bus designs (at least not yet.)
 > 
As I said in another newsgroup; I had during a 12 hour session about
260 16kbyte page faults per second on a CDC Cyber 995.  I think that
ranks as a mainframe.
-- 
dik t. winter, cwi, amsterdam, nederland
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