Enable parallel GC for Gradle builds (#3404)

* Enable parallel GC for Gradle builds

Per https://developer.android.com/studio/build/optimize-your-build#experiment-with-the-jvm-parallel-garbage-collector

I benchmarked this, and p75 incremental build time dropped from 33s to 30s.

https://github.com/gradle/gradle/issues/19750 means that if `org.gradle.jvmargs` is set any unchanged default values are lost, so include those too.

* Update gradle.properties
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Nik Clayton 2023-03-01 21:07:57 +01:00 committed by GitHub
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commit a792d2c0d6
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@ -1,5 +1,6 @@
org.gradle.caching=true
org.gradle.jvmargs=-Xmx4g -Dfile.encoding=UTF-8
# If jvmargs is changed then the default values must also be included, see https://github.com/gradle/gradle/issues/19750
org.gradle.jvmargs=-XX:+UseParallelGC -Xmx4g -Dfile.encoding=UTF-8 -XX:MaxMetaspaceSize=2g -XX:+HeapDumpOnOutOfMemoryError -Xms256m
# use parallel execution
org.gradle.parallel=true
# https://docs.gradle.org/7.6/userguide/configuration_cache.html