NAME

       libpfm_intel_icx_unc_pcu - support for Intel IcelakeX Server PCU uncore PMU

SYNOPSIS

       #include <perfmon/pfmlib.h>

       PMU name: icx_unc_pcu
       PMU desc: Intel IcelakeX PCU uncore PMU

DESCRIPTION

       The  library supports the Intel IcelakeX PCU (Power Control Unit) uncore PMU. There is one
       PCU per system.  Each PCU PMU implements 4 generic counters.

MODIFIERS

       The following modifiers are supported on Intel IcelakeX PCU 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 IRP clockticks 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
              [0:63].

       i      Invert the threshold (t) test from strictly greater than to less or equal to.  This
              is a boolean modifier.

       occ_i  Invert  the  threshold  (t)  for  occupancy  events  POWER_STATE_OCCUPANY test from
              strictly greater than to less or equal to. This is a boolean modifier.

       occ_e  Enable edge detection for occupancy events POWER_STATE_OCCUPANCY, 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.

       AUTHORS
              Stephane Eranian <eranian@gmail.com>

                                          November, 2023                                LIBPFM(3)