Dynamic Power Management - HP 124708-001 - ProLiant Cluster - 1850 Introduction Manual

heat savings realized by disabling processor cores allows the remaining cores to run at a higher
frequency than their rated speed. In specific application environments, this may actually increase
overall system performance.
• Addressing licensing issues. Some software is licensed on a per-core basis. Disabling cores allows
an administrator to match the number of active cores on a server with licensing requirements.
However, some software that is licensed on a per-core basis may not recognize the disabling of
cores unless the core is disabled through the BIOS during POST.

Dynamic Power Management

Dynamic Power Management works hand-in-hand with Turbo Boost to automatically optimize the
performance and power use of the processor, chipset, and memory based on business requirements.
Dynamic Power Management provides the following key improvements:
• The ability to manage power for the processor, chipset, and memory
• More operating power states and lower idle processor power states
• Reduced overhead when transitioning states
These Dynamic Power Management advances allow a processor based on the Intel Microarchitecture
Nehalem to provide greater performance while using the same amount of power as a processor
based on the previous generation Intel Core microarchitecture (Figure 13). Conversely, a Nehalem
processor can achieve performance equivalent to a previous generation processor and use less power
achieving it.
Figure 13. Dynamic Power Management
Lower power consumption with the same performance Higher performance using the same power
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