HP Unified Extensible Firmware Interface - Manual (Page 103)

Figure 94 ACPI RTC Support screen
Accessing Advanced Performance Tuning
This menu lets you set HW prefetcher, adjacent sector prefetch, DCU stream prefetcher, DCU IP
prefetcher, node interleaving, and performance counter monitor. It also lets you set HP SmartMemory.
To access the Advanced Performance Tuning Options menu:
1.
From the System Utilities screen, select System Configuration
→BIOS/Platform Configuration
(RBSU)
→Advanced Options→Advanced Performance Tuning Options and press Enter.
2. Select one of the following options:
•
“Setting HW Prefetcher” (page 103)
•
“Setting Adjacent Sector Prefetch” (page 104)
•
“Setting DCU Stream Prefetcher” (page 105)
•
“Setting DCU IP Prefetcher” (page 106)
•
“Setting Node Interleaving” (page 107)
•
“Setting 1333 MHz Support for 3DPC PC3-10600H HP SmartMemory” (page 108)
•
“Setting 1333 MHz Support for 3DPC PC3-12800R HP SmartMemory” (page 109)
•
“Enabling Intel NIC DMA Channels” (page 110)
•
“Setting Intel Performance Counter Monitor (PCM)” (page 111)
Setting HW Prefetcher
You can disable the processor prefetch option. In most cases, this option should remain enabled.
With certain workloads, disabling this option might provide a performance benefit. Disable this
option only after performing application benchmarking to verify improved performance in a
particular environment. In most environments, leaving the default value of “Enabled” provides
better performance.
NOTE: This option is available on servers with Intel processors. Disabling this option is not
recommended as it can degrade system performance.
Accessing the BIOS/Platform Configuration (RBSU) menu 103