[jboss-user] [Beginner's Corner] - configuring thread-pool-jboss-beans.xml

[Raymond Eperen]

Raymond Eperen [http://community.jboss.org/people/rvaneperen] created the discussion

"configuring thread-pool-jboss-beans.xml"

To view the discussion, visit: http://community.jboss.org/message/575504#575504

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I need to be sure I understand what I read about setting the max threads on jBoss 6.  We are trying to set up for some load testing so I need it to be where it would be in production.  Here is what I found in the docs:

max-threads - optional; specifies the maximum number of threads which may be running concurrently.  Attributes are:
* count - optional float attribute; specifies a fixed quantity.
* per-cpu - optional float attribute; specifies a quantity which is multiplied by the number of available CPUs.  Both quantities are then added and the final result is the actual count used.

so if I use:

      <bounded-queue-thread-pool-executor name="ThreadPool" blocking="true">
         <thread-factory name="ShortTasksThreadFactory"/>                
         <queue-length count="500" per-cpu="200"/>
         <core-threads count="100" per-cpu="50"/>
         <max-threads count="200" per-cpu="100"/>
         <keepalive-time time="30" unit="seconds"/>
         <task-filter>
            <clear-context-classloader/>
            <clear-tls/>
         </task-filter>
      </bounded-queue-thread-pool-executor>
      <bounded-queue-thread-pool-executor name="ThreadPool" blocking="true">
         <thread-factory name="ShortTasksThreadFactory"/>                
         <queue-length count="500" per-cpu="200"/>
         <core-threads count="100" per-cpu="50"/>
         <max-threads count="200" per-cpu="100"/>
         <keepalive-time time="30" unit="seconds"/>
         <task-filter>
            <clear-context-classloader/>
            <clear-tls/>
         </task-filter>
      </bounded-queue-thread-pool-executor>

am I getting a max thread count of 100 x 2 cpu + 200 = 400?

also, is this keepalive setting good for a production environment?  Any other changes you would suggest in order for the server instance to handle a fairly heavy load?
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