NAME

       libpfm_intel_snbep_unc_r3qpi - support for Intel Sandy Bridge-EP R3QPI uncore PMU

SYNOPSIS

       #include <perfmon/pfmlib.h>

       PMU name: snbep_unc_r3qpi0, snbep_unc_r3qpi0
       PMU desc: Intel Sandy Bridge-EP R3QPI uncore PMU

DESCRIPTION

       The  library supports the Intel Sandy Bridge R3QPI uncore PMU.  This PMU model only exists
       on Sandy Bridge model 45. There are two R3QPI PMUs per processor socket.

MODIFIERS

       The following modifiers are supported on Intel Sandy Bridge R3PQI  uncore PMU:

       i      Invert the meaning of the event. The counter will now count R3QPI 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  R3QPI 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
              [0:15].

AUTHORS

       Stephane Eranian <eranian@gmail.com>

                                           August, 2012                                 LIBPFM(3)