Seems odd, Are you using a transacted session? Could you post your code so we can give it a whirl? possibly attach it to a jira issue.
2009/2/17 hackingbear <hackingb...@gmail.com>: > > Hi, any help on this? 5.2 shouldn't be a few times slower, but I can't find > out why. All the other configs are out-of-box defaults. > > > hackingbear wrote: >> >> Hi, >> >> I upgraded to 5.2.0 last week and witness my application performance >> dropped substantially. I wrote a simple test which does: >> >> producer: >> loop >> create a temporary reply queue >> send a short object message to a non-persistent, non-durable queue >> read from reply queue >> delete the reply queue >> >> consumer: >> read the message >> send the same object back to the reply queue >> >> In 5.1, I get to 91 msg/s but in 5.2.0, I only get 17 msg/s >> >> The configurations are pretty much identical between the two versions: >> 5.2: -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode >> -Dorg.apache.activemq.UseDedicatedTaskRunner=false >> 5.1: -Xmx386m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode >> -Dorg.apache.activemq.UseDedicatedTaskRunner=false >> >> prefetch=1 for both versions. >> >> (Notes worthy: the test program producer/consumers are using the 5.2 >> activemq-all.jar, only the broker server is changed in the tests.) >> >> I know the implication of the UseDedicatedTaskRunner and prefetch, but >> here they are identical for both versions. >> >> Why is there such a huge performance hit in 5.2? >> >> Thanks >> >> > > -- > View this message in context: > http://www.nabble.com/Severe-performance-hit-upgrading-to-5.2.0-from-5.1-tp22016698p22051194.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. > > -- http://blog.garytully.com Open Source SOA http://FUSESource.com
