IBM User Guide for Java V7 on Windows > Run Java applications > Specify a garbage collection policy

Pause time

If an object cannot be created from the available space in the heap, the Garbage Collector attempts to tidy the heap. The intention is that subsequent allocation requests can be satisfied quickly.

The Garbage Collector tries to returning the heap to a state in which the immediate and subsequent space requests are successful. The Garbage Collector identifies unreferenced "garbage" objects, and deletes them. This work takes place in a garbage collection cycle. These cycles might introduce occasional, unexpected pauses in the execution of application code. As applications grow in size and complexity, and heaps become correspondingly larger, the garbage collection pause time tends to grow in size and significance. Pause time can vary from a few milliseconds to many seconds. The actual time depends on the size of the heap, and the quantity of garbage.

The -Xgcpolicy:balanced command-line option uses a garbage collection policy with reduced pause times, even as the Java™ heap size grows.

Parent: Specify a garbage collection policy

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