[jboss-jira] [JBoss JIRA] Commented: (JGRP-685) Perf test: mimick buddy replication

[Bela Ban (JIRA)]

    [ https://jira.jboss.org/jira/browse/JGRP-685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12432648#action_12432648 ] 

Bela Ban commented on JGRP-685:
-------------------------------

For a cluster of N nodes, we should get Bandwidth / (N -1) data per second, e.g. with a GBit switch and 4 nodes, we should get 1 GBit / 3 == 333 MBit/sec == 41MB/sec.
Verify this with perf.Test and perf.IPerf

> Perf test: mimick buddy replication
> -----------------------------------
>
>                 Key: JGRP-685
>                 URL: https://jira.jboss.org/jira/browse/JGRP-685
>             Project: JGroups
>          Issue Type: Task
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 2.7
>
>
> Things to do with the perf test:
> - Mimick buddy replication: send messages not to self, but only to a selected buddy
> - Measure time to send 100MB to A, B, C, D
> - New look at HTOTAL, might help with perf in this scenario
> - TcpTransport (95MB/sec) versus JGroupsTransport/tcp.xml (54MB/sec): why the diff ?
> - Members: A (send), B (receive)
> - Might get better perf with impl of first bullet item (above)
> - JPerf (between A and B) gets 113MB/sec !

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