reduce android studio memory usage
# studio64.exe.vmoptions (in android studio install folder):
-Xms64m
-Xmx128m
-XX:MaxPermSize=24m
-XX:ReservedCodeCacheSize=24m
# gradle.properties (in your project):
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
# Default value: -Xmx10248m -XX:MaxPermSize=256m
org.gradle.jvmargs=-Xmx128m -XX:MaxPermSize=24m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8