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I am starting my java app with the following command line : java -XX:+PrintCommandLineFlags -verbose:gc -XX:+PrintGCDetails \ -XX:+UseConcMarkSweepGC -jar start.jar The JVM enables the following options: -XX:MaxNewSize=87244800 -XX:MaxTenuringThreshold=4 -XX:NewRatio=7 -XX:NewSize=21811200 -XX:OldPLABSize=16 -XX:OldSize=65433600 -XX:+PrintCommandLineFlags -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC Can anyone explains me the meaning of NewRatio and OldSize ? In particular OldSize is the initial size of the tenured generation ?
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