David Zafrani David Zafrani - 1 year ago 186
Android Question

Android Studio - How to increase Allocated Heap Size

I've been using Android Studio for 3 months now and one of the apps I started on it has become fairly large. The memory usage indicated at the bottom right of the program says my allocated heap is maxed at 494M.

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When I start to change the XML files my memory usage quickly reaches that cap and the IDE crashes with an Out Of Memory error like this.

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I've tried to increase the heap size using this but so far there has been no effect.

I've looked at dozens of articles and other questions on how to increase the heap size but none of their answers are working. No matter what I do to the VMOPTIONS or the IDE settings the heap size never increases. I believe I am editting the correct file for the VMOPTIONS because if I purposely give it an invalid command Android Studio complains about it and doesn't start.

I'm using windows 7 - 64 bit and have 16GB RAM.
Has anyone else had this problem with Android Studio? And were you able to fix it?

Answer Source

I looked at my Environment Variables and had a System Variable called _JAVA_OPTIONS with the value -Xms256m -Xmx512m, after changing this to -Xms256m -Xmx1024m the max heap size increased accordingly.