Thanks for the lead on psi-probe! I am going to check that out some more. >From what I have seen the same general TC config pretty much works for TC/Java 5, 6, 7, 8. There are some features/opts/settings that come and go or change slightly between version but the tuning methodology is pretty consistent. The Googles helps make the necessary adjustments between versions.
Here is what where were using on our AR/ITSM 8.1 MT server before we retired ITSM. Tomcat 7.0.50 Java 1.7.0_51-b13 -Xincgc -XX:PermSize=128m -Xms512m -Xmx3584m -XX:MaxPermSize=256m -XX:+UseCompressedOops -XX:+UseParNewGC -XX:+UseConcMarkSweepGC I am by no means an expert with all of the JVM ins and outs (just kind of comfortable). There might be an odd combination or setting in that example. Quite honestly I tend to tweak adjust my set of opts as we change web servers, update TC and Java so there are times I have redundant opts (again, not an expert). I watched constantly for weeks using jvisualvm and CG, heap growth, etc. were pretty steady and stable. We were only using SRM and CM so it was a 1 MT environment. We had not ramped up to multi-node MT servers with tons of memory before we went back to custom development. There are also the ehcache tweaks you don't want to overlook in the MT config.properties. At one time I tried really cranking up the MaxPermSize but there is a certain point where adding memory to it no longer helps. Unfortunately BIRT (web) reporting running in the same TC/JVM takes a toll on the entire MT application. I too have seen larger reports smoother the MT UI. My impression is the BIRT solution is pretty light weight. The introduction of Smart Reports with it's own web stack is a very good move. Jason On Fri, May 22, 2015 at 12:12 PM, andres tamayo <cycom...@gmail.com> wrote: > ** > Jason thanks for the link. > i already read that and another one called Mid-Tier_deployment_kb.pdf > which focus on midtier but i think is mostly oriented to environments based > on tomcat 6 and java 1.5 and 1.6. > > BTW since i made the modification to TOMCAT java opts about perm gen > seems like is working better. > > Additionally i'm using an utility called psi-probe which i just discover > yesterday and it really help me to monitor may system. > > anyway if someone have some additional advise it will be great! > > 2015-05-22 14:03 GMT-05:00 Jason Miller <jason.mil...@gmail.com>: > >> ** >> Have you read Performance Tuning for BSM - 199037.pdf >> <https://communities.bmc.com/docs/DOC-19905>? There is some very good >> information in this doc. >> >> On Fri, May 22, 2015 at 9:44 AM, andres tamayo <cycom...@gmail.com> >> wrote: >> >>> ** >>> Hi there >>> >>> I'm working with an ITSM 7.6.04 SP5 remedy with tomcat 7.0 with java 1.7. >>> >>> I'm facing some performance issues with the permgen memory and it seems >>> that is happening when someone use the report feature. >>> >>> i was reading a document from BMC about midtier deployment but it only >>> references installation with tomcat 6 and java 1.5 1.6. so i only implement >>> suggestion about permgen memory -xxPermGen:256m >>> >>> there is some other recommendation that can you suggest to improve >>> performance particularly about tomcat (java) performance. >>> >>> thanks for the suggestions. >>> _ARSlist: "Where the Answers Are" and have been for 20 years_ >> >> >> _ARSlist: "Where the Answers Are" and have been for 20 years_ >> > > _ARSlist: "Where the Answers Are" and have been for 20 years_ > _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org "Where the Answers Are, and have been for 20 years"
