SGI Octane III Guide de l'utilisateur Page 48

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36 007-5630-001
4: BIOS Information
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will pre fetch streams of data and instructions from the
main memory to the L2 cache in the forward or backward manner to improve CPU performance.
The options are Disabled and Enabled.
Adjacent Cache Line Prefetch (Available when supported by the CPU)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The CPU fetches both
cache lines for 128 bytes as comprised if Enabled.
Intel Virtualization Technology (Available when supported by the CPU)
Select Enabled to use the feature of Virtualization Technology to allow one platform to run
multiple operating systems and applications in independent partitions, creating multiple "virtual"
systems in one physical computer. The options are Enabled and Disabled.
Note: If there is any change to this setting, you will need to power off and restart the system for
the change to take effect. Please refer to Intel’s web site for detailed information.
Execute-Disable Bit Capability (Available when supported by the OS and the CPU)
Set to Enabled to enable the Execute Disable Bit which will allow the processor to designate areas
in the system memory where an application code can execute and where it cannot, thus preventing
a worm or a virus from flooding illegal codes to overwhelm the processor or damage the system
during an attack. The default is Enabled. (Refer to Intel and Microsoft Web Sites for more
information.)
Simultaneous Multi-Threading (Available when supported by the CPU)
Set to Enabled to use the Simultaneous Multi-Threading Technology, which will result in
increased CPU performance. The options are Disabled and Enabled.
Active Processor Cores
Set to Enabled to use a processor's Second Core and beyond. (Please refer to Intel's web site for
more information.) The options are All, 1 and 2.
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