Enabling or disabling Sub-NUMA Clustering

Sub-NUMA Clustering divides the cores, cache, and memory of the processor into multiple NUMA domains. Enabling this option can increase performance for workloads that are NUMA aware and optimized.

NOTE:

Up to 1 GB of system memory might become unavailable when Sub-NUMA Clustering is enabled.

Prerequisite

To enable this option, enable XPT Prefetcher.

Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance Options > Sub-NUMA Clustering.
  2. Select a setting.

    • Enabled

    • Disabled

  3. Save your setting.