User's Manual

44 omreport: Viewing System Status Using the Instrumentation Service
The following fields are defined for the capabilities present on a particular
microprocessor:
For Intel Processor
• 64-bit Support
• Hyperthreading (HT)
• Virtualization Technology (VT)
• Demand-Based Switching (DBS)
• Execute Disable (XD)
For AMD Processor
• 64-bit Support
• AMD-V
™
• AMD PowerNow! ™
• No Execute (NX)
The following fields are defined for a cache present on a particular
microprocessor. If the cache is internal to the processor, the fields do not
appear in the cache report:
• Speed
• Cache Device Supported Type
• Cache Device Current Type
• External Socket Name
Fields Reported for Each Cache on a Particular Processor
The following fields are displayed for each cache on a particular processor:
Status reports whether a specific cache on the processor is enabled or
disabled.
Level refers to a primary or secondary cache. Primary-level cache is a memory
bank built into the processor. Secondary-level cache is a staging area that
feeds the primary cache. A secondary-level cache may be built into the
processor or reside in a memory chipset outside the processor. The internal
processor cache is referred to as a Level 1 (or L1). L2 cache is the external
cache in a system with an Intel Pentium processor, and it is the second level of