[jboss-jira] [JBoss JIRA] (JGRP-1998) Transport: reuse of incoming buffers

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142837#comment-13142837 ] 

Bela Ban commented on JGRP-1998:
--------------------------------

h3. UDP
* The same buffer (66000 bytes) is reused
* Message batches are de-serialized off of the UDP buffer and passed to a thread pool for further processing. *No copy*
* Single messages: the buffer is copied and passed to the thread pool where de-serialization happens
** If we made processing of single messsages similar to that of message batches, we could get rid of the buffer copy: do the de-serialization directly in the {{TP.receive()}} method and pass the message to the thread pool for further processing
*** Look at whether this hampers performance
*** Should nt be the case as we're already de-serializing message batches in the {{TP.receive()}} method
*** Most of the time (when receiving a lot of messages), messages will be received as message batches, not single messages anyway, so de-serialization of single messages shouldn't matter (perf-wise)

> Transport: reuse of incoming buffers
> ------------------------------------
>
>                 Key: JGRP-1998
>                 URL: https://issues.jboss.org/browse/JGRP-1998
>             Project: JGroups
>          Issue Type: Enhancement
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 3.6.7
>
>
> Investigate whether buffers can be reused on the receive side. JGRP-1989 already provides this on the send side. Goal: reduction of memory allocation rate.



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