2013/10/25 Dave Watts <[email protected]> > > > I'm a bit confused now. > > On one hand Adobe recommends number of simultaneous requests = > > num_of_CPU_cores * 4 or 5 which is 16 - 20 requests on Quad Xeon CPU. At > > least it was so for CF 7/8/9. > > This isn't really correct. To the best of my knowledge, there are no > formal recommendations from Adobe on proper settings for number of > simultaneous requests, and there have never been any. Everybody wants > some, but unfortunately there's no "one size fits all" number for > this. If you want to optimize this for your application, you need to > load test it with your application. >
I was talking about a range, not about "one size" :) I personally would try 3-10 requests per CPU core but 100 per core seems too high due to cost of constant requests switching within one CPU thread. Though you are correct. Load test is a final argument. Just trying to get a direction.. > > > On other hand latest recommendations from Adobe are connection_pool_size > = > > 500 for two_sites_conf and it sets simultaneous Template requests = 500 > in > > CF admin. > > I'm curious, can you provide a citation for this recommendation anywhere? > Well, not recommendation directly from Adobe but examples from people near Adobe. First link in my initial post was from @Kiran http://blogs.coldfusion.com/post.cfm/tuning-coldfusion-10-iis-connector-configuration I googled "ColdFusion 10 IIS connector" and 500 was a standard value for connection pool size. > > > Could anybody clarify what is a best values for connection_pool_size and > > how it is connected to simultaneous Template requests in CF admin? > > Well, my understanding of it is: the web server looks at each incoming > request, then sends it to the connector if the URL of the request > matches the pattern specified in the context root. By default, the > context root is "/", which means that every request matches, and all > are sent to the connector. The connector evaluates the request to see > if it matches a servlet pattern specified in web.xml. If it doesn't, > it's returned to the web server for processing. So, it would make > sense that the connector would require a much larger pool of > simultaneous requests than CF itself would. > Thanks a lot for explanation! Larger pool of connections in connector makes sense then. But why I see Simultaneous Template Requests = 500 in CF admin after manual connector tuning while it was 24 before tuning? Is that normal? Sergey Croitor ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356981 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
