HP UEFI System Utilities User Guide for HP ProLiant DL580 Gen8 Servers

To set HW prefetcher:
1. From the System Utilities screen, select System Configuration→BIOS/Platform Configuration
(RBSU)→Advanced Options→Advanced Performance Tuning Options→HW Prefetcher and
press Enter.
2. Select one of the following options:
• Enabled
• Disabled
3. Press F10 to save your selection.
Figure 95 Advanced Options — HW Prefetcher screen
Setting Adjacent Sector Prefetch
You can disable the processor prefetch option. In most cases, this option should remain enabled.
With certain workloads, however, disabling this option can provide a performance benefit. Disable
this option only after performing application benchmarking to verify improved performance in a
particular environment.
IMPORTANT: Disabling this option is not recommended because it typically degrades system
performance.
To set adjacent sector prefetch:
1. From the System Utilities screen, select System Configuration→BIOS/Platform Configuration
(RBSU)→Advanced Options→Advanced Performance Tuning Options→Adjacent Sector Prefetch
and press Enter.
2. Select one of the following options:
• Enabled (default)
• Disabled
3. Press F10 to save your selection.
104 Accessing the System Configuration Menu