NAME

       libpfm_intel_bdx_unc_irp - support for Intel Broadwell Server IRP uncore PMU

SYNOPSIS

       #include <perfmon/pfmlib.h>

       PMU name: bdx_unc_irp
       PMU desc: Intel Broadwell Server IRP uncore PMU

DESCRIPTION

       The  library  supports  the  Intel Broadwell Server IRP (IIO coherency) uncore PMU .  This PMU model only
       exists various Broadwell server models (79, 86).

MODIFIERS

       The following modifiers are supported on Intel Broadwell server IRP uncore PMU:

       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 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].

       i      Invert  the  meaning  of the threshold or edge filter. If set, the event counts when strictly less
              than N occurrences occur per cycle if threshold is set to N. When invert is  set,  then  threshold
              must  be set to non-zero value. If set, the event counts when the event transitions from occurring
              to not occurring (falling edge) when edge detection is set. This is a boolean modifier

AUTHORS

       Stephane Eranian <eranian@gmail.com>

                                                   June, 2017                                          LIBPFM(3)