java堆大小增加和内存不足

Question

I use java visual VM to monitor my heap and i see that the heap dump is showing bad signs

I think that this is why I am running out of memory,

How to limit the "size" (orange area) ?

Answer 1

Since your used heap size is stable, you can limit maximum heap size by using -Xmx512m to limit it to 512 MB for example.

This is a good article on what proper sizing should be (a bit out of date though): http://publib.boulder.ibm.com/infocenter/javasdk/tools/index.jsp?topic=%2Fcom.ibm.java.doc.igaa%2F_1vg00014884d287-11c3fb28dae-7ff6_1001.html

Edit: Since I see youre using NetBeans profiler, to set the option, just right click your project > Properties > Run > VM Options: -Xmx512m