Recommended jvm values same host cassandra

Recommended Cassandra values when all services share the same host

Without CortexWith Cortex

16 GB RAM32 GB RAM

-Xms2g
-Xmx4g
-Xmn200m

-Xms4g
-Xmx8g
-Xmn400m

16 GB RAM32 GB RAM

-Xms1g
-Xmx3g
-Xmn200m

-Xms3g
-Xmx6g
-Xmn400m

For recommended values across all services, see Tune JVM Memory.