[jboss-jira] [JBoss JIRA] (JGRP-2065) RoundTrip: latency is high compared to RoundTripTcp/RoundTripServer

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-2065?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-2065:
---------------------------
    Description: 
{{RoundTrip}} is a simple test between 2 members where the sender continually sends a message, the receiver receives it and sends the response, and the sender unblocks when the response is received. The time for the request is then logged at the sender and a min/avg/max value is computed (probably changed to histograms later).

{{RoundTrip}} uses a JGroups channel, configured with {{-props}}, e.g. {{-props ~/tcp.xml}}.

{{RoundTripTcp}} does the same, but uses direct TCP sockets (no JGroups) for communication.

{{RoundTripServer}} uses the client-server classes of JGroups for communication, but no channel is used.

Round trip times (both processes on the same box, a Mac mini):
* {{RoundTrip}} (with {{tcp.xml}} shipped with JGroups): *110 us*
* {{RoundTripTcp}}: *46 us*
* {{RoundTripServer}}: *49 us*

  was:
{{RoundTrip}} is a simple test between 2 members where the sender continually sends a message, the receiver receives it and sends the response, and the sender unblocks when the response is received. The time for the request is then logged at the sender and a min/avg/max value is computed (probably changed to histograms later).

RoundTrip uses a JGroups channel, configured with {{-props}}, e.g. {{-props ~/tcp.xml}}.

{{RoundTripTcp}} does the same, but uses direct TCP sockets (no JGroups) for communication.

{{RoundTripServer}} uses the client-server classes of JGroups for communication, but no channel is used.



> RoundTrip: latency is high compared to RoundTripTcp/RoundTripServer
> -------------------------------------------------------------------
>
>                 Key: JGRP-2065
>                 URL: https://issues.jboss.org/browse/JGRP-2065
>             Project: JGroups
>          Issue Type: Task
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 4.0
>
>
> {{RoundTrip}} is a simple test between 2 members where the sender continually sends a message, the receiver receives it and sends the response, and the sender unblocks when the response is received. The time for the request is then logged at the sender and a min/avg/max value is computed (probably changed to histograms later).
> {{RoundTrip}} uses a JGroups channel, configured with {{-props}}, e.g. {{-props ~/tcp.xml}}.
> {{RoundTripTcp}} does the same, but uses direct TCP sockets (no JGroups) for communication.
> {{RoundTripServer}} uses the client-server classes of JGroups for communication, but no channel is used.
> Round trip times (both processes on the same box, a Mac mini):
> * {{RoundTrip}} (with {{tcp.xml}} shipped with JGroups): *110 us*
> * {{RoundTripTcp}}: *46 us*
> * {{RoundTripServer}}: *49 us*



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