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.
