  <counter_set name="Perf_Hardware_cnt" count="6"/>
  <category name="Perf Hardware" counter_set="Perf_Hardware_cnt" per_cpu="yes" supports_event_based_sampling="yes">
    <event counter="Perf_Hardware_ccnt" event="0" title="Clock" name="Cycles" display="hertz" units="Hz" average_selection="yes" average_cores="yes" description="The number of core clock cycles"/>
    <event event="1" title="Instruction" name="Executed" description="Instruction executed"/>
    <event event="2" title="Cache" name="References" description="Cache References"/>
    <event event="3" title="Cache" name="Misses" description="Cache Misses"/>
    <event event="4" title="Branch" name="Instructions" description="Branch or other change in program flow that could have been predicted by the branch prediction resources of the processor"/>
    <event event="5" title="Branch" name="Misses" description="Branch mispredicted or not predicted"/>
    <event event="6" title="Bus" name="Cycles" description="Bus Cycles"/>
    <event event="7" title="Instruction" name="Stalled Frontend" description="Stalled Frontend Cycles"/>
    <event event="8" title="Instruction" name="Stalled Backend" description="Stalled Backend Cycles"/>
  </category>