I'm in charge of the upgrade from version 5.4.2 to 5.8.0. The changes were mostly straightforward but when I do a stress test I'm getting a huge performance deficit in the new versions. Even when messages are not being persisted. I have a nice startup but after a little while, the performance decreases horribly. I've got the following charts to show what I say... for version 5.4.2... <http://activemq.2283324.n4.nabble.com/file/n4671081/5_4_2_0.jpg> <http://activemq.2283324.n4.nabble.com/file/n4671081/5_4_2_1.jpg> <http://activemq.2283324.n4.nabble.com/file/n4671081/5_4_2_2.jpg> as you can see, I'm getting quite a stable result, with 4k messages every 15secs. in the other hand.. with 5.8.0 (and 5.7.0, I've tried both versions with the same result) <http://activemq.2283324.n4.nabble.com/file/n4671081/5_8_0_0.jpg> <http://activemq.2283324.n4.nabble.com/file/n4671081/5_8_0_1.jpg> <http://activemq.2283324.n4.nabble.com/file/n4671081/5_8_0_2.jpg> The broker's reaction keeps getting worse as the time continues. Do you have any idea why this is happening? Is there any configuration I'm missing? Thanks! Pedro Zuppelli
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