[jboss-jira] [JBoss JIRA] (JGRP-1716) The UDP receiver thread parsing messages causes performance regression

[Dan Berindei (JIRA)]

Dan Berindei created JGRP-1716:
----------------------------------

             Summary: The UDP receiver thread parsing messages causes performance regression
                 Key: JGRP-1716
                 URL: https://issues.jboss.org/browse/JGRP-1716
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 3.4
            Reporter: Dan Berindei
            Assignee: Bela Ban
         Attachments: jgroups-udp.pdf

Comparing JGroups 3.2/3.3/3.4 performance with Radargun, the throughput went down by ~10%. (See the attached chart. "getall" means the get requests are sent to 2 nodes, "getfirst" means they are sent to only 1 node.)

Erik Salter profiled his application and noticed that the message parsing in the UDP receiver thread seemed to slow things down. He wrote a patch that brought his throughput back to 3.2 levels: https://github.com/an1310/JGroups/compare/t_perfhack

The UDP receiver thread may not tell the whole story, however: in the Radargun tests, performance with his patch was even lower.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira