Hello Ali, there are no absolute benchmarks for what you are looking for. The central theme to any performance questions invariably lead to the <A> word (Architecture). You need to evaluate you overall architecture from a high level perspective. With this said the questions then are: * What is your planned network topology once you go to production? This question naturally leads to what is your hosting options? If you have a datacenter and have configured and installed your own servers is the best. Next option is to build your servers and then co-locate. The least advantageous option is renting servers (serverbeach.com etc.). If you are hosting locally what is your upstream provider? (fat pipe) and type of connection: T1, T3, OC1, OC3 etc. * Type of scaling (horizontal vs vertical) * Invariably performance issues are rarely a result of the web container (Tomcat). You need to look at the developed software (dot).war that is deployed on TC (use JMeter or some recognized software testing tools). * I have worked on high volume financial web applications that are running at 3 to 4000 transactions/sec. A transaction is end-to-end a round-trip time starting with the HTTP connection, processing and connection to the backend DB, query results returned and subsequently a results web page displayed. This is a HTTP get, put or post transaction. * You are hitting your TC with 30000 transactions with a ramp up speed of 10 seconds so you are at 3000/sec. If as you say the web container is not handling this you still need to look at what you web application is doing.
Ultimately, using JMeter you need to look here: http://wiki.apache.org/jakarta-jmeter/ A expert in this area is Peter Lin: http://tomcat.apache.org/articles/performance.pdf The JMeter has specific JSF testing reading: http://wiki.apache.org/myfaces/PerformanceTestingWithJMeter Ali Ok wrote .. > Thanks David, > > I mean, if I make 30000 requests in a very short time (about 10 seconds); > Tomcat does not respond. > I read books, tutorials, faqs and threads at maling list about Tomcat > tuning. But I couldnt find an example server.xml file used in production or > real test results. > > So I cant understand if 30000 requests in 10 seconds is normal or not. > > > > 2008/1/26, David Brown <[EMAIL PROTECTED]>: > > > > Hello Ali, please find included below a link URL that addresses the JSF > > performance issue. A much more rigorous test would be to use the JMeter > > distributed testing using the JMeter server. HTH, David. > > > > Ali Ok wrote .. > > > Hi, > > > > > > We are building a web application with JSF. Last day I tested it with > > > JMeter. Results are bad (I guess). > > > > > > Then I tried to send 30000 requests with JMeter to "Shuffle Example" in > > > Tomcat's examples directory with a limited size of (256 MB I think) > > memory > > > resource given to Tomcat. This "Shuffle Example" does not query database > > or > > > does not make complicated operations as you know; it is very simple. > > > > > > Question is, what should I expect? Does it have to respond all requests? > > Or > > > is it normal to throw an exception about "Too many open files" (I use > > NIO > > > connector) and finally OutOfMemoryError and parachute-thing? > > > > > > After I solve this, I can go on to JSF application testing. > > > > > > > > > I couldnt find documents enough about this issue. Can you send me some > > > links? > > > > > > Thanks in advance. > > > > --------------------------------------------------------------------- > > To start a new topic, e-mail: users@tomcat.apache.org > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
