Java control panel max heap size8/3/2023 We can spot the classic generational nature of the CMS GC in the heap configuration. You can add a system environment variable named JAVAOPTIONS, and set the heap size values there. As of this writing, Intellij IDEA is still using the CMS GC with the following heap info: par new generation total 613440K, used 114299KĬoncurrent mark-sweep generation total 1415616K, used 213479K The Java Virtual Machine takes two command line arguments which set the initial and maximum heap sizes: -Xms and -Xmx. Metaspace used 21031K, capacity 21241K, committed 21504K, reserved 22528KĪs shown above, we're using 28 MB of the heap and around 20 MB of metaspace. For instance, if we run the same Quarkus app with ZGC via â-XX:+UnlockExperimentalVMOptions -XX:+UseZGCâ: ZHeap used 28M, capacity 200M, max capacity 1024M This output may change depending on the GC algorithm.
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