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

Figure 97 Advanced Options — DCU Stream Prefetcher screen
Setting DCU IP Prefetcher
You can control processor prefetching. 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.
To set DCU IP prefetcher:
1. From the System Utilities screen, select System Configuration→BIOS/Platform Configuration
(RBSU)→Advanced Options→Advanced Performance Tuning Options→DCU IP Prefetcher and
press Enter.
2. Select one of the following options:
• Enabled (default)
• Disabled
3. Press F10 to save your selection.
106 Accessing the System Configuration Menu