Hi all, I'm interested in the performance regression, and since I saw a similar regression with JGroups 3.4.0 coupled with ISPN 5.2.x (until 6.0.x is ready), I decided to investigate:
Here are some profiling snapshots that I shared with Pedro. This is of my system running UDP on a 12 node DIST cluster https://dl.dropboxusercontent.com/u/50401510/pruvio/dg1_320_interpreted.jps https://dl.dropboxusercontent.com/u/50401510/pruvio/dg1_340_interpreted2.jps The big thing we noticed was that the building of a Message was now in the main UDP receive() thread instead of the thread pools. To my poor brain (and since I haven't been involved in the latest ISPN/JGroups happenings), it appeared this would be the most likely culprit. So I reworked the UDP receiver to be a bit more like 3.2.x with the Message construction done in the appropriate thread pool (main, OOB, internal), while quasi-punting on the new bundler implementation. After 3 test runs, the average throughput (again, measured by my app) seems to have recaptured 50-80% of the performance degradation. The variance is high enough, though, to give me pause that I'm on the right track. Take this FWIW. Thanks. Erik -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mircea Markus Sent: Wednesday, October 09, 2013 3:35 PM To: infinispan -Dev List Subject: [infinispan-dev] The windup of 6.0.0 Hi guys, - 6.0.0.CR2 was added for 16 Oct (Adrian) and 6.0.0.Final was moved to 23 Oct (Dan) - we have some 20% performance regressions we need to look at before going final - I've updated JIRA: - added tasks for creating documentation and quickstarts - some JIRAs were moved here - please follow the JIRA or let me know if there's anything missing: http://goo.gl/y4Ky7t Cheers, -- Mircea Markus Infinispan lead (www.infinispan.org) _______________________________________________ infinispan-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/infinispan-dev _______________________________________________ infinispan-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/infinispan-dev
