HPE ProLiant Gen9

Intel NIC DMA Channels (IOAT)
Use this option to enable or disable DMA acceleration on Intel NICs. If your server does not have Intel NICs,
leave this setting disabled.
Enabling or disabling DMA acceleration on Intel NICs
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > Performance Options > Advanced Performance Tuning Options > Intel NIC DMA
Channels (IOAT) and press Enter.
2. Select a setting and press Enter.
a. Enabled
b. Disabled
3. Press F10.
HW Prefetcher
Use this option to disable or enable the processor prefetch function. In most environments, leave it enabled
for optimal performance. With certain workloads, disabling this option might provide a performance benefit.
Do so only after performing application benchmarking to verify improved performance in a particular
environment.
NOTE:
This option is available on servers with Intel processors. Disabling this option is not recommended because it
can degrade system performance.
Enabling or disabling the Intel prefetch function
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > Performance Options > Advanced Performance Tuning Options > HW Prefetcher and
press Enter.
2. Select a setting and press Enter.
a. Enabled
b. Disabled
3. Press F10.
Adjacent Sector Prefetcher
Use this option to disable or enable the adjacent sector prefetch function. In most environments, leave the
option enabled for optimal performance. With certain workloads, disabling it might provide a performance
benefit. Do so only after performing application benchmarking to verify improved performance in a particular
environment.
88 Intel NIC DMA Channels (IOAT)