Fully agree with you there Dave, like yourselves at Fig Leaf we are often involved in load-testing big web apps and that setting should be nowhere near 40 unless this is 6 processor box. You are totally right the actual number per processor is determined by the results of controlled and monitored load testing.
Kind Regards - Mike Brunt, CTO Webapper Blog http://www.webapper.net Web site http://www.webapper.com Downey CA Office 562.243.6255 AIM - webappermb Web Application Specialists -----Original Message----- From: Dave Watts [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 05, 2002 10:35 AM To: CF-Talk Subject: RE: Is Coldfusion REALLY multi threaded? > At the moment, limit simultaneous requests is not ticked - > perhaps I should and set it to 40. I'll try it and let > you know. Setting it to forty would probably not be an especially good idea - that's an extremely high value. CF is designed to take advantage of queuing requests - some number get simultaneously processed and the rest go into a queue, and are serviced when free threads are available for them. This is supposed to be faster than simply processing all the requests at once (at least in Windows) and it's been my experience that it is, in fact, faster. As Christine Lawson noted, the recommended number is somewhere around 3-7 threads per processor. I'd add the caveat that to find the optimal number, load testing is required, and that you can see significant performance differences between the optimal number and the others. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ voice: (202) 797-5496 fax: (202) 797-5444 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting.
