I am about to setup Tomcat under a new Linux 2.6 kernel with 2 Athlon MP processors. Since scheduling, threading, and SMP have been much improved in the new kernel I wonder if it will add to performance.
I don't have anything to test the new setup with, but if anyone has good ideas (and by good, I mean "easy"), as I haven't done any profiling, etc. Oscar http://daydream.stanford.edu/tomcat/install_web_services.html On Mon, 15 Dec 2003, Sean Dockery wrote: > Thanks, Tim, for the even handed response. > > I'm not looking for a business case to choose one or the other, however; it > is certain that our customers will be deploying our application on both > Linux and Windows (and even Solaris). I'm just looking to find out whether > or not OS service (TCP/IP stacks, threads, file I/O, etc...) implementation > differences between Linux and Windows have a significant impact on > performance and thus should be weighed accordingly. > > I received a response in email from Peter Lin in which he details his > experience (which was very helpful; thank you, Peter). I've read Peter's > article about performance tuning and a few other white papers as well, but I > haven't really seen anything in the past that focused on OS differences and > how those differences might affect the recommended approach to profiling and > tuning. > > My conclusions from my readings so far: Slow java code (i.e.: algorithms) > will be slow on any platform; change the implementation to make it faster. > Configurable behaviour dependent upon OS services (TCP/IP stacks, threads, > file I/O, etc...) should be tuned for the platform on which the application > will live. > > PS: I was sad to learn that the Tomcat Performance Handbook publishing date > would be postponed. I would be thrilled if either you or Peter could tell > me that the book will see a printer's press anytime soon. > > PPS: Is there a wiki for this stuff anywhere? > > "Tim Funk" <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > > [I hate saying this since its rather very much like flambait but...] > > > > If its worth anything, I haven't had enough load on any of our apps to > know > > whether Linux or Windows is better. Instead, look at: > > *** - Maintenance - If your a windows shop - stay windows *** > > - Debugging - I think troubleshooting is easier on *nix systems (YMMV) > > - Comfort - If your comfortable with unix concepts - linux might be easier > > than windows > > > > -Tim > > > > Sean Dockery wrote: > > > > > I am planning to profile a web application on Windows XP (my development > > > platform). I am curious as to whether or not different components in > Tomcat > > > and the JVM will behave differently (in a relative comparison) on Linux > > > (production platform) than Windows. > > > > > > For example, I have had a person tell me that threads under Linux are > more > > > performant than threads under Windows--leading to the corollary that web > > > applications under Linux are more performant than web applications under > > > Windows on the same hardware. My guess is that this claim is based upon > the > > > supposition that thread/context switches under Linux are faster than > under > > > Windows. I find the claim rather dubious because I've never seen data > to > > > support the claim, but doubt is not certainty. > > > > > > Is there any evidence that this claim and other component performance > > > differences between the Windows and Linux platform exist and are > significant > > > enough to throw my performance measurements out the "window". :-) > > > > > > My concern is that I'll profile the application under Windows and tune > it, > > > but then find that my gains aren't as significant or maybe even > worthless > > > under Linux. > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
