On 17/05/2013 11:51, Chirag Dewan wrote: > > > Hi All, > > I have upgraded my application from Embedded Tomcat 6 to Embedded > Tomcat 7. With Tomcat 6, I was getting around 70000 Transactions per > sec with a simple HTTP service,which sets the HTTPResponse and > returns it. > > Now with Tomcat 7,I am getting 54000 transactions per sec. Going > through the web I figured out that it may be due to Servlet 3.0 API. > I have updated my web.xml so that Servlet API doesn't scan the > classes for annotations. This is how my web.xml looks like:
Annotation scanning affects start time, not runtime performance. > Can anyone provide some other measures I can implement? Which Tomcat versions are you comparing? Is everything else the same (OS, JVM, etc.)? With trunk I get ~37k req/s with the default configuration and using ab as the client. Just changing maxKeepAliveRequests to -1 increases that to ~43k reqs/sec and all of that without shutting down the stuff I normally have running. There have been changes to the connector code that could add a few microseconds here and there to a request. That could explain the numbers you are seeing. Using a profiler would be the next step to see where the time is being spent. Mark --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
