Concurrent mark sweep collector

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The Concurrent mark sweep collector (concurrent mark-sweep collector, concurrent collector or CMS)[1] is a mark-sweep garbage collector in the Oracle HotSpot Java virtual machine (JVM) available since version 1.4.1.

HotSpot garbage collectors[edit]

The HotSpot JVM selects the default garbage collector based on several factors.[2] The newer Garbage-first collector (G1) is planned to replace CMS.[3]

To launch the JVM with this garbage collector you can add this property to the java command line -XX:+UseConcMarkSweepGC [4][1]

See also[edit]


  1. ^ a b "Concurrent Mark Sweep Collector Enhancements".
  2. ^ "Garbage Collector Ergonomics".
  3. ^ "Java HotSpot Garbage Collection".
  4. ^ "Garbage Collectors".