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configuring thread-pool-jboss-beans.xml
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created by <a href="http://community.jboss.org/people/rvaneperen">Raymond Eperen</a> in <i>Beginner's Corner</i> - <a href="http://community.jboss.org/message/575504#575504">View the full discussion</a>
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<div class="jive-rendered-content"><p>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:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>max-threads - optional; specifies the maximum number of threads which may be running concurrently.  Attributes are:</p><ul style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: transparent; border-collapse: collapse; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; font-size: 12px; list-style-type: disc; list-style-position: initial; list-style-image: initial; outline-width: 0px; outline-style: initial; outline-color: initial; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 2.25em; background-position: initial initial; background-repeat: initial initial; margin: 0px; border: 0px initial initial;"><li style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: transparent; border-collapse: collapse; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; font-size: 12px; list-style-type: disc; list-style-position: initial; list-style-image: initial; outline-width: 0px; outline-style: initial; outline-color: initial; background-position: initial initial; background-repeat: initial initial; padding: 0px; margin: 0px; border: 0px initial initial;">count - optional float attribute; specifies a fixed quantity.</li><li style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: transparent; border-collapse: collapse; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; font-size: 12px; list-style-type: disc; list-style-position: initial; list-style-image: initial; outline-width: 0px; outline-style: initial; outline-color: initial; background-position: initial initial; background-repeat: initial initial; padding: 0px; margin: 0px; border: 0px initial initial;">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.</li></ul><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>so if I use:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">      <bounded-queue-thread-pool-executor name="ThreadPool" blocking="true"></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <thread-factory name="ShortTasksThreadFactory"/>                </div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <queue-length count="500" per-cpu="200"/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <core-threads count="100" per-cpu="50"/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <max-threads count="200" per-cpu="100"/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <keepalive-time time="30" unit="seconds"/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         <task-filter></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">            <clear-context-classloader/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">            <clear-tls/></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">         </task-filter></div><div id="_mcePaste" style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;">      </bounded-queue-thread-pool-executor></div><p>      <bounded-queue-thread-pool-executor name="ThreadPool" blocking="true"></p><p>         <thread-factory name="ShortTasksThreadFactory"/>                </p><p>         <queue-length count="500" per-cpu="200"/></p><p>         <core-threads count="100" per-cpu="50"/></p><p>         <max-threads count="200" per-cpu="100"/></p><p>         <keepalive-time time="30" unit="seconds"/></p><p>         <task-filter></p><p>            <clear-context-classloader/></p><p>            <clear-tls/></p><p>         </task-filter></p><p>      </bounded-queue-thread-pool-executor></p></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>am I getting a max thread count of 100 x 2 cpu + 200 = 400?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>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?</p></div>
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