IBM User Guide for Java V7 on Windows > Reference > Command-line options > Garbage Collector command-line options

-Xnuma:none

Use this option to turn off Non-Uniform Memory Architecture (NUMA) awareness when using the balanced garbage collection policy.

-Xnuma:none

The option is enabled by default. However, for workloads that do most of their work in one thread, or workloads that maintain a full heap, turning off NUMA awareness can improve performance.

Parent: Garbage Collector command-line options

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