Performance counter
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A performance counter is a hardware feature in some microprocessors that gives information about the performance of the CPU.
Intel’s Core 2 processors have 5 performance counters per core. Two of these are fully programmable, and can count 116 (#1) or 115 (#2) different types of events.[1]
References[edit]
- ↑ Apple Developer Documentation TP40005233-CH23-SW1. /documentation/DeveloperTools/Conceptual/SharkUserGuide/IntelCore2PMCTablesAppendix/IntelCore2PMCTablesAppendix.html#//apple_ref/doc/uid/TP40005233-CH23-SW1