Tomcat - Run on Solaris Dual Processors

here is a neat site on JVM tuning...

http://www.cafesoft.com/products/cams/ps/docs21/admin/PerformanceTuning.html

after reading the above document, i guess one specific tweak u could try is probably allowing the Garbage COllector to run on a separate thread... using the
-XX:+UseParallelGC   option

-KuTtZ

thanks
i'm using jk connector (mod_jk-apache-2.0.55.so).
any recommendation for the fine tuning configuration?

to improve the performance of tomcat, Use a Thread Pool in your Connectors.

If you are using Tomcat 3.2 and above.

you can increase the performance of tomcat by changing the default setting for example


Pooled ajpv12 Connector


        <!-- A pooled AJPV12 Connector for out-of-process operation -->
        <Connector
className="org.apache.tomcat.service.PoolTcpConnector">
            <Parameter
                name="handler"
               
value="org.apache.tomcat.service.connector.Ajp12ConnectionHandler"/>
            <Parameter
                name="port"
                value="8007"/>
        </Connector>
               

Can be changed as

        <!-- A pooled AJPV12 Connector for out-of-process operation -->
        <Connector
className="org.apache.tomcat.service.PoolTcpConnector">
            <Parameter
                name="handler"
               
value="org.apache.tomcat.service.connector.Ajp12ConnectionHandler"/>
            <Parameter
                name="port"
                value="8007"/>
            <Parameter
                name="max_threads"
                value="30"/>
            <Parameter
                name="max_spare_threads"
                value="20"/>
            <Parameter
                name="min_spare_threads"
                value="5" />
        </Connector>
               


As can be seen the pool has 3 configuration parameters:

max_threads - defines the upper bound to the for the concurrency, the
pool will not create more then this number of threads.
max_spare_threads - defines the maximum number of threads that the pool
will keep idle. If the number of idle threads passes the value of
max_spare_threads the pool will kill these threads.
min_spare_threads - the pool will try to make sure that at any time
there is at least this number of idle threads waiting for new requests
to arrive. min_spare_threads must be bigger then 0.

You should use the above parameters to adjust the pool behavior to your
needs.

i think so this would help in increasing the performance of tomcat

thanks ss_p
so sorry...my mistakes...i'm using mod_jk and not mod_jk2.

i'm thinking of using the load balancer in my worker properties file...
but i've only one machine....load balancer will not work or help, am i right?

yes you are correct.

but you can improve the performance of the tomcat. I think that it might help you in increase the performance.

the mod_jk is using ajp13 port 8009.

my tomcat setting is
 <!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
    <Connector port="8009"
               enableLookups="false" redirectPort="8443" debug="0"
               minProcessors="5" maxProcessors="150"
               protocol="AJP/1.3" />

How could i improve this?

Have you got any answers.