HardwareReference

The capabilities of perf depends on the features of the CPU. The following list the features of common modern architectures.

• Performance Monitoring Units (PMUs)
  • Intel(TM) x86 Nehalem PMU
  • Intel(TM) Itanium(TM) 2 PMU
• Performance Counters for Linux
  • PCL core kernel data structures
  • PCL core kernel internals
  • perf tool internals