Configure JVM options

[jtnelson]

http://blog.sokolenko.me/2014/11/javavm-options-production.html

[chandresh-pancholi]

Please assign this issue to me.

[jtnelson]

@chandresh-pancholi you can go ahead and tackle this one

[chandresh-pancholi]

@jtnelson https://gist.github.com/chandresh-pancholi/0f19d2cb3fd90fd9309b6c7117496960 please provide default value. I will commit.
Currently -Xms1024m -Xmx1024m both values are same. it doesn't leave space for young generation as its a 1/3 of heap size.

[jtnelson]

@chandresh-pancholi let's put this issue on hold for a sec because i need to do more research on some of the options that we're not already setting. Also, we'll upgrade to java 8 after the next release so we'll need to think about JVM tuning as a whole