Java process on server - what is standard resource usage?

[William]

Hi,

Just taking a look at 'top' and noticed the following:

Code: Select all

 top
PID   USER   PR   NI   VIRT   RES   SHR   S   %CPU   %MEM   TIME+   COMMAND
5983   root   24   0   796m   312m   17m   S   0   15.4   280:08.26   java


Code: Select all

 ps ax | grep java
PID   TTY   STAT   TIME    COMMAND
5983   ?   Sl   280:08   /usr/java/jre1.5.0_11/bin/java -server -Djava.net.preferIPv4Stack=true -Dscalix.instance=/var/opt/scalix/ml -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/var/opt/scalix/ml/tomcat/conf/logging.properties -Djava.endorsed.dirs=/opt/scalix-tomcat/common/endorsed -classpath /usr/java/jre1.5.0_11/lib/tools.jar:/opt/scalix-tomcat/bin/bootstrap.jar:/opt/scalix-tomcat/bin/commons-logging-api.jar -Dcatalina.base=/var/opt/scalix/ml/tomcat -Dcatalina.home=/opt/scalix-tomcat -Djava.io.tmpdir=/var/opt/scalix/ml/tomcat/temp org.apache.catalina.startup.Bootstrap start


seems quite alot of resources, is this normal?

[ScalixSupport]

Hi William!

This is absolutely normal to me, by the way how memory is allocated for tomcat?

The result of top -p 23238 is as below:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
23238 root 23 0 340m 100m 14m S 0.0 40.4 0:44.89 java

and result of ps ax | grep java is:

# ps ax | grep java
23238 pts/2 Sl 0:44 /usr/java/jre1.5.0_06/bin/java -server -Djava.net.preferIPv4Stack=true -Xms124m -Xmx124m -Dscalix.instance=/var/opt/scalix/s4 -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/var/opt/scalix/s4/tomcat/conf/logging.properties -Djava.endorsed.dirs=/opt/scalix-tomcat/common/endorsed -classpath /usr/java/jre1.5.0_06/lib/tools.jar:/opt/scalix-tomcat/bin/bootstrap.jar:/opt/scalix-tomcat/bin/commons-logging-api.jar -Dcatalina.base=/var/opt/scalix/s4/tomcat -Dcatalina.home=/opt/scalix-tomcat -Djava.io.tmpdir=/var/opt/scalix/s4/tomcat/temp org.apache.catalina.startup.Bootstrap start

Thanks,
Subir