HP Unified Extensible Firmware Interface - Manual (Page 105)

Figure 96 Advanced Options — Adjacent Sector Prefetch screen
Setting DCU Stream Prefetcher
You can control processor prefetching. In most cases, leave this option 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 Stream Prefetcher:
1.
From the System Utilities screen, select System Configuration
→BIOS/Platform Configuration
(RBSU)
→Advanced Options→Advanced Performance Tuning Options→DCU Stream Prefetcher
and press Enter.
2. Select one of the following options:
•
Enabled (default)
•
Disabled
3. Press F10 to save your selection.
Accessing the BIOS/Platform Configuration (RBSU) menu 105