Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
PMC.UCF(3)		 BSD 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 func-
     tion 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 in-
	     crements 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.p4(3), pmc.p5(3),
     pmc.p6(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>.

BSD				March 30, 2010				   BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=pmc.ucf&sektion=3&manpath=FreeBSD+11.2-RELEASE+and+Ports>

home | help