Table of contents

1. JPS
   1. list running java processes
   2. Find java and remove applications you don’t want killed
      1. Find apps running jvm, deliminate by first space, return the field1 (PID), kill all -
2. JVM
   1. Available Options

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JPS

list running java processes

jps -lV

Find java and remove applications you don’t want killed

jps | egrep -v (pgrep idea)

Find apps running jvm, deliminate by first space, return the field1 (PID), kill all -

for pid in $(jps | egrep -v $(pgrep webstorm) | egrep -v $(pgrep idea)| egrep -v $(pgrep jps) | cut -d' ' -f1); do kill -9 $pid; done

JVM

Available Options

run the following command

java -X

and you will get a list of all -X options:

-Xmixed           mixed mode execution (default)
-Xint             interpreted mode execution only
-Xbootclasspath:<directories and zip/jar files separated by ;>
set search path for bootstrap classes and resources
-Xbootclasspath/a:<directories and zip/jar files separated by ;>
append to end of bootstrap class path
-Xbootclasspath/p:<directories and zip/jar files separated by ;>
prepend in front of bootstrap class path
-Xdiag            show additional diagnostic messages
-Xnoclassgc       disable class garbage collection
-Xincgc           enable incremental garbage collection
-Xloggc:<file>    log GC status to a file with time stamps
-Xbatch           disable background compilation
-Xms<size>        set initial Java heap size.........................
-Xmx<size>        set maximum Java heap size.........................
-Xss<size>        set java thread stack size
-Xprof            output cpu profiling data
-Xfuture          enable strictest checks, anticipating future default
-Xrs              reduce use of OS signals by Java/VM (see documentation)
-Xcheck:jni       perform additional checks for JNI functions
-Xshare:off       do not attempt to use shared class data
-Xshare:auto      use shared class data if possible (default)
-Xshare:on        require using shared class data, otherwise fail.
-XshowSettings    show all settings and continue
-XshowSettings:all         show all settings and continue
-XshowSettings:vm          show all vm related settings and continue
-XshowSettings:properties  show all property settings and continue
-XshowSettings:locale      show all locale related settings and continue