Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!DGOGWD01.BITNET!GWD21T From: GWD21T@DGOGWD01.BITNET ("W.J.Moeller") Newsgroups: comp.os.vms Subject: compute bound jobs & terminal response time Message-ID: <8704290310.AA04517@ucbvax.Berkeley.EDU> Date: Tue, 28-Apr-87 23:11:09 EDT Article-I.D.: ucbvax.8704290310.AA04517 Posted: Tue Apr 28 23:11:09 1987 Date-Received: Thu, 30-Apr-87 04:36:18 EDT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 11 I have the impression that the SYSGEN parameter QUANTUM has a rather large default value of 20 (meaning 20 ticks = 200 msec), and that reducing that value to, e.g., 5 does give better terminal response iff your system load is cpu-bound and there are several processes in COM state. I never "formally" measured the effect and would be interested in anyone's experiences. I do realize that it will cost some cpu performance - there is at least 1 context switch per quantum - but 10 msec is a long time, isn't it. W.J.Moeller, GWDG, D-3400 Goettingen, F.R.Germany Phone +49 551 201516