Question: I have noticed a high memory and CPU usage during mvn-gwt operation especially during compile phase. Memory usage just soars. I just wanna know if this is normal and if anyone else is experiencing this. 

My current JVM setting is `-Xms64m -Xmx1280m -XX:MaxPermSize=512m`

![Memory usage during GWT Compile](https://i.stack.imgur.com/KGqCy.png)

Answer: 
I think it's normal. Because the phase of compilation in GWT is really very resource-intensive. GWT provides a larger library (in gwt-user.jar) that must be analyzed during compilation and a number of compiler optimizations that require much memory and processing power. Thus, the GWT compiler use much memory internally.
Yes, it's normal. It derives from the awsome CPU utilization Google made when they've written the gwtc command (gwtc = GWT Compile).

I consider it good since the tradeoff for the CPU would typically be memory usage which is far more valuable for me.

(I do not work for Google :-))