hi David thanks so much for the information
>>2)Some part of your web application is not releasing the memory it uses. i dont think so, i am working with Hibernate and jdbcTemplate(when i work with jasperreports) and i use c3p0 but to clear some doubt, i see this Also look at JProbe, or OptimizeIt, or other profiling tools. the first is for J2EE so, it seems this cant help me and the second is not free can you suggest me one of your preference? (free of course) it can detect in which part in my code the resources is not releasing? i never used before in my live a profile now about point 1 if i dont bad remember when i start tomcat i see in the "perfomance control" almost 350 in ram used so the correct value should be 512-350=162 instead of 400 right? i hope your help i am doom in this thanks so much for advanced David Delbecq-2 wrote: > > Well, i see two performance bottlenecks in your description > > 1) You gave a max memory to your tomcat jvm that is above what your > server supports. You shouldn't give jvm more memory thant what is really > available without swapping (that is 512M minus all that is used by other > applications in your case). Swapping is a big performance bottlneck. > > 2) Whatever the memory you give your tomcat application, it seems it eat > more and more of it. Some part of your web application is not releasing > the memory it uses. See http://tomcat.apache.org/faq/memory.html for > more informations. > > > En l'instant précis du 22/08/07 14:37, dr_pompeii s'exprimait en ces > termes: >> hello >> >> after to test my project in tomcat 5.5.23 and jdk 5 update 12 >> in network(intranet-only until now with 2 clients) i see that this is >> fast, >> after of a some time i can see a wonderful exception >> related with java heap exception thrown by the tomcat >> >> after to search in google, i found the solution for windows >> (server works with windows XP SP2) related to give some values >> for memory ram values to the tomcat5w.exe >> >> http://computerlabsolutions.com/supp...hp#performance >> i only did the second step >> >> according to this >> [quote] >> Click on the Java tab, and enter 128 in the Initial Memory Pool, and 350 >> or >> 400 in the Maximum Memory Pool.Leave the other field blank. >> [/quote] >> so my values are >> 128 in the Initial Memory Pool >> 400mb Maximum Memory Pool >> >> the point is that the server is a intel dual core with 3ghz for each , >> and >> has DDR2 512 MB of ram >> >> ok, its works, the point is that after to restart the server, the system >> is >> fast again, >> but then again after of some time the performance go to very slow >> >> if i do ctrl+ alt+ del to see the performance of the pc related with the >> ram >> i taked a picture when start the wierd performance >> my ram go to 645MB and swap 46200KB >> >> i thought if i stop to use the system/application(5 minutes), >> i can give the chance to the java or tomcat to get and free >> some resources >> >> well not the ram go to 640MB and swap to 45276KB >> >> of course if i shutdown my tomcat >> i have now these values >> RAM 319MB and swap 44564KB >> >> is normal this?, >> i dont think so >> some important suggestion/advice by our members?? >> >> BTW: i am using pool connections related with the db area >> > > > -- > http://www.noooxml.org/ > > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/wierd-performance-in-tomcat-java%3A-help-consult-tf4311308.html#a12276431 Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
