[jboss-jira] [JBoss JIRA] (JGRP-2145) UDP: investigate slow-down compared to TCP

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-2145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13337310#comment-13337310 ] 

Bela Ban commented on JGRP-2145:
--------------------------------

The reception of messages from potentially all members at the same time may create a bottleneck: currently, messages are de-serialized by the (unicast- or multicast-) thread _before_ passing them to the thread pool.

This is contrary to TCP where we have one dedicated thread per member (connection), so other threads are not slowed down having to wait for de-serialization of messages from other members.

Possibly revisit decision to do de-serialization on the receiver thread for UDP...

> UDP: investigate slow-down compared to TCP
> ------------------------------------------
>
>                 Key: JGRP-2145
>                 URL: https://issues.jboss.org/browse/JGRP-2145
>             Project: JGroups
>          Issue Type: Enhancement
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 4.1
>
>
> With IspnPerfTest, a UDP-based config is roughly 30% slower on cluster01-08 than a TCP-based config. Investigate why.



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