jpyll@lhdsy1.chevron.com (Philip Y. de Louraille) (04/30/91)
I am posting this to see if some of you have already studied/encountered the problem which I am about to post. That is, in a distributed environment: about 35 DECstations 3100 (and counting), 10 DECstations 5000 (and counting), one DECstation 5000/200 used as a server, one DECsystem 5400, soon to be upgraded to a 5500 system, about 10 SUN sparcs (and counting), 6-7 IBM RS6000 (and counting), how many Xterminals can we have on the network before we will start having difficulties with the servers and/or the network. Let me do a bit of clarification: presently, all NCD and Tektronix Xterminals that we have are configured from the DEC servers (5400 and 5000) and users log in to them. So we can assume that they do all their work (Xclock, Xcalendar, xterms, etc...., including some locally developped programs which do seismic display, ray tracing, etc.... (meaning lots of pixmaps and cpu intensive)) on these servers. We also have IBM Xterminals which run out of the RS6000 (two of them are dedicated Xterms servers and it seems that they do not time share well at all, surprise, surprise...!). At night, we have about 20 GraphOns (and counting) and most people who have a cpu in their offices use them as GraphOn servers, but people who have Xterminals uses the servers (DEC) for that purpose. More Xterminals are going to be purchased soon: probably 20 in the short time. We probably already have 30+ of them. When are we going to hit bottleneck? If more details are needed before an intelligent answer can be given, by all means, ask and I will provide. If anything useful comes out of this posting, I will concentrate the responses and post them. Thank you very much! Philip Yzarn de Louraille Internet: jpyll@chevron.com Research Support Division Unix & Open Systems Chevron Information & Technology Co. Tel: (213) 694-9232 P.O. Box 446, La Habra, CA 90633-0446 Fax: (213) 694-7709 -- Philip Yzarn de Louraille Internet: jpyll@chevron.com Research Support Division Unix & Open Systems Chevron Information & Technology Co. Tel: (213) 694-9232 P.O. Box 446, La Habra, CA 90633-0446 Fax: (213) 694-7709