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Pooled
This option presents the additional memory in the MAX5 as a pool of memory without
being assigned to any particular processor. Use this setting with Linux OSs.
6.9.2 UEFI performance tuning
Tuning the x3850 X5 for performance is a complicated topic, because it depends on which
application you have installed or which workload this application generates. For example, a
database server will generate a separate load on the hardware than a file and print server.
In this section, we provide general settings for the x3850 X5 that can be a good starting point
for performance tuning. For more detailed information about the best settings for your specific
environment and application needs, contact your IBM Business Partner or IBM
representative.
Table 6-9 gives general recommendations for the most common UEFI settings.
Table 6-9 Overview of UEFI settings
Setting
MaxImum
performance
Virtualization
b
Low latency
Performance
per watt
HPC
TurboMode
a
Enabled
Enabled
Disabled
Disable
Disabled
TurboBoost
Traditional
Power Optimized
Automatically
disabled
Automatically
disabled
Automatically
disabled
Processor
Performance
states
Enabled
Enabled
Disabled
Enabled
Disabled
C states
Disabled
Enabled
Disabled
Enabled
Enabled
C1E state
Disabled
Enabled
Disabled
Enabled
Enabled
Prefetcher
Enabled
Enabled
Enabled
Enabled
Enabled
Hyper-
Threading
Enabled
Enabled
Disabled
Enabled
Enabled
Execute
Disable
Disabled
Enabled
Disabled
Enabled
Disabled
Virtualization
Extensions
Disabled
Enabled
Disabled
Enabled
Disabled
QPI Link Speed
Max Performance
Max Performance
Max Performance
Power Efficiency
Max
Performance
IMM Thermal
Mode
Performance
Performance
Performance
Normal
Performance
CKE Policy
Disabled
Disabled
Disabled
Disabled
Disabled
DDR Speed
Max Performance
Max Performance
Max Performance
Max Performance
Max
Performance
Page Policy
Closed
Closed
Closed
Closed
Closed
Mapper Policy
Closed
Closed
Closed
Closed
Closed
Patrol Scrub
Disabled
Disabled
Disabled
Disabled
Disabled
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