[2.2.1] Setting JVM arguments -Xmx and Xms for "play run"

[Ömer Faruk Gül]

Hi,

I'm trying to set Xmx and Xms for play run but I failed after trying the following two methods (I'm using VisualVM to check it under "JVM arguments" tab):

play run - Xmx384m

and also inside the build.sbt file:

javaOptions ++= Seq("-Xms64M", "-Xmx384M")

What's the correct way of setting this?

[Joe Zulli]

The simplest way that I know of for setting those values in a dev environment is with the _JAVA_OPTIONS environment variable. for example, I have the following in my .bashrc:

export _JAVA_OPTIONS="-Xms64m -Xmx1024m -Xss2m -XX:MaxPermSize=256m"

Joe

[Alberto Souza]

You could use env JAVA_OPTS="-Xmx1g -Xms1g" play run

Alberto Souza

http://alots.wordpress.com/

https://leanpub.com/playframeworknapratica

[Ömer Faruk Gül]

I set the JAVA_OPTS and now arguments are set correctly but the problem is,  Xmx and Xms values are passed two times, here is the list of JV arguments:

-Xms512M

-Xmx1536M

-Xss1M

-XX:ReservedCodeCacheSize=192m

-XX:+CMSClassUnloadingEnabled

-XX:MaxPermSize=512M

-Xms64m

-Xmx384m

-Xss512k

-Dfile.encoding=UTF-8

-Dplay.version=2.2.1

-Dplay.home=../../Frameworks/play-2.2.1/framework

-Dsbt.boot.properties=../../Frameworks/play-2.2.1/framework/sbt/sbt.boot.properties

When I monitor the heap, it looks like it is obeyed to Xmx384m. But where is the -Xmx1536M and -Xms512M default arguments are passed and is there a way I can remove them?

[Alberto Souza]

I am not sure. I did not find any information about that... But it is not a problem... the last arguments are more important :).