PMC.UCF(3)             FreeBSD Library Functions Manual             PMC.UCF(3)

NAME
     pmc.ucf - measurement events for Intel uncore fixed function performance
     counters.

LIBRARY
     Performance Counters Library (libpmc, -lpmc)

SYNOPSIS
     #include <pmc.h>

DESCRIPTION
     Each fixed-function PMC measures a specific hardware event.  The number
     of fixed-function PMCs implemented in a CPU can vary.  The number of
     fixed-function PMCs present can be determined at runtime by using
     function pmc_cpuinfo(3).

     Intel uncore fixed-function PMCs are documented in Volume 3B: System
     Programming Guide, Part 2, Intel(R) 64 and IA-32 Architectures Software
     Developes Manual, Order Number: 253669-033US, Intel Corporation, December
     2009.

   PMC Capabilities
     Fixed-function PMCs support the following capabilities:

     Capability           Support
     PMC_CAP_CASCADE      No
     PMC_CAP_EDGE         No
     PMC_CAP_INTERRUPT    No
     PMC_CAP_INVERT       No
     PMC_CAP_READ         Yes
     PMC_CAP_PRECISE      No
     PMC_CAP_SYSTEM       No
     PMC_CAP_TAGGING      No
     PMC_CAP_THRESHOLD    No
     PMC_CAP_USER         No
     PMC_CAP_WRITE        Yes

   Class Name Prefix
     These PMCs are named using a class name prefix of "ucf-".

   Event Specifiers (Fixed Function PMCs)
     The fixed function PMCs are selectable using the following event names:

     UCLOCK  (Fixed Function Counter 0) The fixed-function uncore counter
             increments at the rate of the U-clock.  The frequency of the
             uncore clock domain can be determined from the uncore clock ratio
             which is available in the PCI configuration space register at
             offset C0H under device number 0 and Function 0.

SEE ALSO
     pmc(3), pmc.atom(3), pmc.core(3), pmc.core2(3), pmc.corei7(3),
     pmc.corei7uc(3), pmc.iaf(3), pmc.k7(3), pmc.k8(3), pmc.soft(3),
     pmc.tsc(3), pmc.westmere(3), pmc.westmereuc(3), pmc_cpuinfo(3),
     pmclog(3), hwpmc(4)

HISTORY
     The pmc library first appeared in FreeBSD 6.0.

AUTHORS
     The Performance Counters Library (libpmc, -lpmc) library was written by
     Joseph Koshy <jkoshy@FreeBSD.org>.

FreeBSD 13.1-RELEASE-p6         March 30, 2010         FreeBSD 13.1-RELEASE-p6