Memory Proximity Reporting for I/O
Use this option to set whether the system ROM reports the proximity relationship between I/O devices
and system memory to the operating system. Most operating systems can use this information to
efficiently assign memory resources for devices, such as network controllers and storage devices.
NOTE:
Certain I/O devices might not be able to take advantage of I/O handling benefits if their OS drivers are not
properly optimized to support this feature. For more information, see your operating system and I/O
device documentation.
Enabling or disabling Memory Proximity Reporting for I/O
Procedure
1.
From the
System Utilities
screen, select
System Configuration
>
BIOS/Platform Configuration
(RBSU)
>
Performance Options
>
Advanced Performance Tuning Options
>
Memory Proximity
Reporting for I/O
and press
Enter
.
2.
Select a setting and press
Enter
.
a. Enabled
b. Disabled
3.
Press
F10
.
I/O Non-posted Prefetching
Use this option to enable or disable the I/O non-posted 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.
Enabling or disabling I/O Non-posted Prefetching
Procedure
1.
From the
System Utilities
screen, select
System Configuration
>
BIOS/Platform Configuration
(RBSU)
>
Performance Options
>
Advanced Performance Tuning Options
>
I/O Non-posted
Prefetching
and press
Enter
.
2.
Select a setting and press
Enter
.
a. Enabled
b. Disabled
3.
Press
F10
.
NUMA Group Size Optimization
Use this option to configure how the system ROM reports the number of logical processors in a NUMA
(Non-Uniform Memory Access) node. The resulting information helps the operating system group
processors for application use.
Configuring Performance Options
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