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   libpfm_intel_snbep_unc_ha    ( 3 )

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Имя (Name)

libpfm_intel_snbep_unc_ha - support for Intel Sandy Bridge-EP
       Home Agent (HA) uncore PMU

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Синопсис (Synopsis)

#include <perfmon/pfmlib.h>

       PMU name: snbep_unc_ha
       PMU desc: Intel Sandy Bridge-EP HA uncore PMU

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Описание (Description)

The library supports the Intel Sandy Bridge Home Agent (HA)
       uncore PMU.  This PMU model only exists on Sandy Bridge model 45.
       There is only one Home Agent per processor socket.

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Модификаторы (Modifiers)

The following modifiers are supported on Intel Sandy Bridge C-Box
       uncore PMU:

       i      Invert the meaning of the event. The counter will now
              count HA cycles in which the event is not occurring. This
              is a boolean modifier

       e      Enable edge detection, i.e., count only when there is a
              state transition from no occurrence of the event to at
              least one occurrence. This modifier must be combined with
              a threshold modifier (t) with a value greater or equal to
              one.  This is a boolean modifier.

       t      Set the threshold value. When set to a non-zero value, the
              counter counts the number of HA cycles in which the number
              of occurrences of the event is greater or equal to the
              threshold.  This is an integer modifier with values in the
              range [0:255].

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