> I have a ( potential ) client who approached me with a > problem. > > They have been doing some preliminary load testing of an > application with 25 users (I.E. a demo license of a program) > and have noticed that the processor utilization was taking > 50% of resources. They want the application to work (without > sweating) for up to 500 users. They are a bit worried. > > This is where I come in and I'm preparing a proposal for > load testing and optimizing their application / server. The > server sounds pretty beefy (I.E. dual 1 GHZ processors and > 2 gigs of RAM ). I haven't dealt with the server processor > utilization / memory allocation too much. Is what they are > experiencing common? What utilization should they expect > with a small number of users?
First, it's hard to say, based on the "preliminary load testing" - was the load test a stress test with no think time, or pauses, between requests, or was it a simulation of the typical usage pattern of 25 users? As Cameron indicated, a stress test can easily consume all available server resources. Second, it's hard to say what the standard utilization pattern should be in any case, and it's not really that important. What is important is to find out how many users the server can support - there's not necessarily any meaningful correlation between the two. For example, the CPU usage might go very high right away with a minimal number of users, and plateau even as the user count increases. Even if that's not the case, you're probably not going to be able to determine why CPU usage is so high without doing stress testing to find the bottlenecks within the application, so you might as well not worry too much about it until then. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ voice: (202) 797-5496 fax: (202) 797-5444 ::::::::::::: dream :: design :: develop ::::::::::::: MXDC 02 :: Join us at this all day conference for designers & developers to learn tips, tricks, best practices and more for the entire Macromedia MX suite. September 28, 2002 :: http://www.mxdc02.com/ (Register today, seats are limited!) :::::::::::::::::::::::::::::::::::::::::::::::::::::: ______________________________________________________________________ Your ad could be here. Monies from ads go to support these lists and provide more resources for the community. http://www.fusionauthority.com/ads.cfm ------------------------------------------------------------------------------ To unsubscribe, send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body or visit the list page at www.houseoffusion.com
