Disabling Processor Prefetcher OptionsDisabling Processor Prefetcher Options
By default, Processor Prefetcher Options are enabled to provide optimal performance for most environments. In some cases, disabling
these options can improve performance.
IMPORTANT:IMPORTANT:
To verify that you can improve performance in your environment, perform application bench marking before you
disable a processor prefetcher option.
ProcedureProcedure
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
XPT Prefetcher
NOTE:NOTE:
This setting must be enabled when Sub-NUMA Clustering is enabled.
LLC Prefetch
3. Select Disabled.
4. Save your changes.
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