libpfm_amd64_fam19h_zen3(3) — Linux manual page


LIBPFM(3)               Linux Programmer's Manual              LIBPFM(3)

NAME         top

       libpfm_amd64_fam19h_zen3 - support for AMD64 Family 19h

SYNOPSIS         top

       #include <perfmon/pfmlib.h>

       PMU name: amd64_fam19h_zen3
       PMU desc: AMD64 Fam19h Zen3

DESCRIPTION         top

       The library supports AMD Family 19h processors Zen3 core PMU in
       both 32 and 64-bit modes.

MODIFIERS         top

       The following modifiers are supported on AMD64 Family 19h Zen3
       core PMU:

       u      Measure at user level which includes privilege levels 1,
              2, 3. This corresponds to PFM_PLM3.  This is a boolean

       k      Measure at kernel level which includes privilege level 0.
              This corresponds to PFM_PLM0.  This is a boolean modifier.

       h      Measure at while executing in host mode (when using
              virtualization). This corresponds to PFM_PLMH.  This
              modifier is available starting with Fam10h. This is a
              boolean modifier.

       g      Measure at while executing in guest mode (when using
              virtualization). This modifier is available starting with
              Fam10h. This is a boolean modifier.

       i      Invert the meaning of the event. The counter will now
              count 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. This is a boolean modifier.

       c      Set the counter mask value. The mask acts as a threshold.
              The counter will count 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].

AUTHORS         top

       Swarup Sahoo

COLOPHON         top

       This page is part of the perfmon2 (a performance monitoring
       library) project.  Information about the project can be found at
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                             February, 2021                    LIBPFM(3)