Memory and Java settings for Jetty

The default memory and java settings for the Jetty instance are stored in: jetty/defaults/start.d/jvm.ini

The files in the Jetty defaults directory should not be modified on an install.

To change these settings first copy the file from defaults to the following location: jetty/base/start.d/jvm.ini

Changes can then be made to the copied version

Generally you only need to modify the -Xmx1024m setting to a higher amount to make use of more memory that you may have available on the system.

Since Patch 732_20171004. There are some internal options no longer required in here. You can always refer to the base version in jetty/defaults/start.d/jvm.ini

Default Jetty Java options
## JVM Configuration ## If JVM args are include in an ini file then --exec is needed ## to start a new JVM from start.jar with the extra args. ## ## If you wish to avoid an extra JVM running, place JVM args ## on the normal command line and do not use --exec --exec -server -Xms512m -Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC -XX:ParallelCMSThreads=2 -XX:+CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 #-verbose:gc #-XX:+PrintGCDateStamps #-XX:+PrintGCTimeStamps #-XX:+PrintGCDetails #-XX:+PrintTenuringDistribution #-XX:+PrintCommandLineFlags

Default Jetty Java options

## JVM Configuration
## If JVM args are include in an ini file then --exec is needed
## to start a new JVM from start.jar with the extra args.
##
## If you wish to avoid an extra JVM running, place JVM args
## on the normal command line and do not use --exec
--exec

-server
-Xms512m
-Xmx1024m
-XX:+HeapDumpOnOutOfMemoryError
-XX:+UseConcMarkSweepGC
-XX:+DisableExplicitGC
-XX:ParallelCMSThreads=2
-XX:+CMSClassUnloadingEnabled
-XX:CMSInitiatingOccupancyFraction=80

#-verbose:gc
#-XX:+PrintGCDateStamps
#-XX:+PrintGCTimeStamps
#-XX:+PrintGCDetails
#-XX:+PrintTenuringDistribution
#-XX:+PrintCommandLineFlags