NAME

       libpfm_intel_skx_unc_upi - support for Intel Skylake X Server UPI uncore PMU

SYNOPSIS

       #include <perfmon/pfmlib.h>

       PMU name: skx_unc_upi[0-2]
       PMU desc: Intel Skylake X Server UPI uncore PMU

DESCRIPTION

       The library supports the Intel Skylake X Server UPI uncore PMU.

MODIFIERS

       The following modifiers are supported on Intel Skylake X server UPI 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 QPI 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

BASIC_HDR_MATCH events

       The library also supports the special RXL_BASIC_HDR_MATCH and TXL_BASIC_HDR_MATCH opcode matcher  events.
       These  events  have  a  lot  more  filters  available  in the form of either a modifier (listed below) or
       specific umasks.  The following modifiers are available in additional to the standard listed above:

       rcsnid Specify a RCS Node identifier as an integer in the range [0-15]. Default: 0

       dnid   Specify a destination Node identifier as an integer in the range [0-15]. Default: 0

AUTHORS

       Stephane Eranian <eranian@gmail.com>

                                                  January, 2018                                        LIBPFM(3)