the JVM settings really depend on your app(s) and load and such. We run about 15 apps on a server available to 20k employees. the server is a quad p4. these settings work for us.
-XX:MaxPermSize=128m -XX:PermSize=64m -XX:+UseParallelGC -XX:NewSize=48m IIRC, if you have a single proc, don't use -XX:+UseParallelGC. I could be recollecting wrong though. Its all in those blog entries by Robi Sen and Pete Frietag..oh and Steven Erat at Talkingtree.com too. also, set your min/max heap the same. example -Xms512m -Xmx512m DK On 11/8/05, Povilas Laucius <[EMAIL PROTECTED]> wrote: > >This sounds like the "stop the world" effect you get with a full Garbage > >Collection (GC). What are the specs of the machine? Is it a single of dual > >CPU? How much RAM has the machine got? > > There is a single processor on the server P4 3.6 Ghz, 2 GB RAM, Windows 2000 > Server SP4. > > >I gather you haven't changed the JVM settings since install - the vanilla > >settings are not production ready they do need to be changed. You need to > >change the max and min Heap sizes based on your applications NOT how much > >RAM your machine has (which is a common mistake for some). > > > >You need to change you perm size and your GC "type" if you are running a > >single CPU for instance you should not be running parrallel GC. > > Current settings: > Minimum JVM Heap Size 512 mb > Maximum JVM Heap Size 1024 mb > -XX:+UseParallelGC > > What GC type you suggest to set? > > What PermSize setting you suggest to use? I had a default setting > -XX:MaxPermSize=128m. Now I changed it to -XX:MaxPermSize=384m > -XX:PermSize=256m. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Find out how CFTicket can increase your company's customer support efficiency by 100% http://www.houseoffusion.com/banners/view.cfm?bannerid=49 Message: http://www.houseoffusion.com/lists.cfm/link=i:10:5661 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/10 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:10 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.10 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
