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.
Setting NUMA Group Size Optimization
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > Performance Options > Advanced Performance Tuning Options > NUMA Group Size
Optimization and press Enter.
2. Select a setting and press Enter.
a. Clustered—Optimizes groups along NUMA boundaries, providing better performance.
b. Flat—Enables applications that are not optimized to take advantage of processors spanning multiple
groups to utilize more logical processors.
3. Press F10.
Intel Performance Monitoring Support
Intel processors include performance counters that can be used by software to measure DRAM performance
(including NVDIMM-N performance). This option is a monitoring tool, and does not impact performance. For
example, the Intel Performance Counter Monitor (PCM) tools can report per-channel bandwidth. For more
information, see the Intel website (https://software.intel.com/%20en-us/articles/intel-performance-
counter-monitor).
Enabling or disabling Intel Performance Monitoring Support
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > Performance Options > Advanced Performance Tuning Options > Intel Performance
Monitoring Support and press Enter.
2. Select a setting and press Enter.
92 Enabling or disabling I/O Non-posted Prefetching
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