Disabling Processor Prefetcher Options

About this task

By default, Processor Prefetcher Options are enabled to provide optimal performance for most environments. In some cases, disabling these options can improve performance.

IMPORTANT

To verify that you can improve performance in your environment, perform application bench marking before you disable a processor prefetcher option.

Procedure

  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance Options > Processor Prefetcher Options.
  2. Select a setting.

    • HW Prefetcher

    • Adjacent Sector Prefetcher

    • DCU Stream Prefetcher

    • DCU IP Prefetcher

    • LLC Prefetch

  3. Select Disabled.
  4. Save your changes.