From: Lothar Scholz Date: 2005-09-16T19:46:24+09:00 Subject: Re: you can't get in trouble with your boss for picking C# Hello Robert, RK> Roland Schmitt wrote: >> Robert Klemme wrote: >>> Roland Schmitt wrote: >>> >>>> Robert Klemme wrote: >>> >>>>> Btw, is J2EE enterprise ready? Is there a significant number of >>>>> applications out there that make full use of J2EE's feature set >>>>> (including scalability features) and serve large numbers of >>>>> concurrent users? I'm not prejudicing, just curious. >>> >>>> Yes, they are. >>>> I'm working in a company with products based on J2EE/JBoss where the >>>> scalability is one reason for our customers to choice the products. >>>> They want to add users as they need and the front-end is a >>>> rich-client for image processing, not only a web front-end. >>> >>> Can you post some figures (# of hosts, max concurrent users etc.) or >>> is this somehow confidential? >> Ok, looked at my current installations, find one with: >> - 10 Servers (8*CPUs...) >> - 120-160 Users >> - Oracle and MSSSQL-DBs >> - SAP-Integration >> >> Hmm, ok, it is not that big, but because it is an type of accounting >> system, it must be very reliable/scalable. RK> You need 80 CPU's to serve 120-160 concurrent users? That would be 2 RK> concurrent users per cpu *max*. This certainly sounds like bad resource RK> usage - or did I miss something here? Maybe you missed the bad word in his email: SAP It is a common joke that you need a SUN Enterprise Server for each user. -- Best regards, emailto: scholz at scriptolutions dot com Lothar Scholz http://www.ruby-ide.com CTO Scriptolutions Ruby, PHP, Python IDE 's