Dell PowerEdge 2900 Hardware Owner's Manual (PDF) - Page 39

CPU Information Screens - virtualization

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CPU Information Screens Table 2-3 lists the options and descriptions for the information fields that appear on the CPU Information screen. Table 2-3. CPU Information Screen Option Description 64-bit Technology Specifies if the installed processor(s) support Intel 64-bit extensions. Core Speed Displays the clock speed of the processor(s). Bus Speed Displays the bus speed of the processor(s). Logical Processor (Enabled default) Displays when the processors support HyperThreading. Enabled permits all logical processors to be used by the operating system. Only the first logical processor of each processor installed in the system is used by the operating system if Disabled is selected. Virtualization Technology (Disabled default) Displays when the processor(s) support Virtualization Technology. Enabled permits virtualization software to use Virtualization Technology incorporated in the processor design. This feature can only be used by software that supports Virtualization Technology. Adjacent Cache Line Prefetch (Enabled default) Enables or disables optimal use of sequential memory access. Disable this option for applications that require high use of random memory access. Hardware Prefetcher (Enabled default) Enables or disables the hardware prefetcher. Demand-Based Power Management (Disabled default) Enables or disables demand-based power management. When enabled, the CPU Performance State tables will be reported to the operating system; when disabled, the CPU Performance State tables will not be reported to the operating system. If any of the CPUs do not support demand-based power management, the field will become read-only, and automatically set to Disabled. Processor X ID Displays the family and model number of each processor. A submenu displays processor core speed, amount of level 2 cache, and number of cores. Using the System Setup Program 39

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Using the System Setup Program
39
CPU Information Screens
Table 2-3 lists the options and descriptions for the information fields that appear on the
CPU
Information
screen.
Table 2-3.
CPU Information Screen
Option
Description
64-bit Technology
Specifies if the installed processor(s) support Intel 64-bit
extensions.
Core Speed
Displays the clock speed of the processor(s).
Bus Speed
Displays the bus speed of the processor(s).
Logical Processor
(
Enabled
default)
Displays when the processors support HyperThreading.
Enabled
permits all logical processors to be used by the operating system.
Only the first logical processor of each processor installed in the
system is used by the operating system if
Disabled
is selected.
Virtualization Technology
(
Disabled
default)
Displays when the processor(s) support Virtualization Technology.
Enabled
permits virtualization software to use Virtualization
Technology incorporated in the processor design. This feature can
only be used by software that supports Virtualization Technology.
Adjacent Cache Line
Prefetch
(
Enabled
default)
Enables or disables optimal use of sequential memory access.
Disable this option for applications that require high use of random
memory access.
Hardware Prefetcher
(
Enabled
default)
Enables or disables the hardware prefetcher.
Demand-Based Power
Management
(
Disabled
default)
Enables or disables demand-based power management. When
enabled, the CPU Performance State tables will be reported to the
operating system; when disabled, the CPU Performance State
tables will not be reported to the operating system. If any of the
CPUs do not support demand-based power management, the field
will become read-only, and automatically set to
Disabled
.
Processor
X
ID
Displays the family and model number of each processor. A
submenu displays processor core speed, amount of level 2 cache,
and number of cores.