Thanks. This is a 64bit Windows 2008 with 2048MB max heap.
I ask because in the below document for an x64 8GB system with 2500MB Max Heap BMC recommend setting that value to 30,000 and referenceMaxElementsinMemory is set to 1800 See “Performance and Scalability White Paper” page 10/77 (mid tier spec) and 42/77 (mid tier config) - http://documents.bmc.com/supportu/documents/97/70/249770/249770.pdf Regards, Andrew Goodall Software Engineer 2 | Development Services | jcpenney . www.jcp.com | 972.431.1518 -----Original Message----- From: Action Request System discussion list(ARSList) [mailto:[email protected]] On Behalf Of Mark Hodges Sent: Thursday, March 29, 2012 11:29 AM To: [email protected] Subject: Re: arsystem.ehcache.maxElementsInMemory - what whould it be set to for full ITSM midtier - box has 12GB memory There is quite a lot of information about the various parameters in the mid tier guide (in the "configuring the mid-tier" chapter, cache settings section) maxElementsInMemory is a total count that is actually ignored in favour of referenceMaxElementsInMemory, which seems to be set to 1250 by default and gets multiplied by the various factors to determine the count for each type of object. You'll run into an address space limit if you are on a 32 bit JVM regardless of the amount of RAM in the box (a little under 3GB on windows usually) so you probably aren't going to fit the full ITSM suite in memory unless you are running on a 64bit JVM. I read somewhere (in the BSM tuning guide I think) that as a rule of thumb for every 750MB of additional heap size configured over and above the recommended 1 GB you can increase this value by 1250, so that's probably a good starting point. _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If the reader of this message is not the intended recipient, you are hereby notified that your access is unauthorized, and any review, dissemination, distribution or copying of this message including any attachments is strictly prohibited. If you are not the intended recipient, please contact the sender and delete the material from any computer. _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are"
