LIBPFM - Online Linux Manual PageSection : 3
Updated : September, 2009
Source :
Note : Linux Programmer's Manual
NAME libpfm_intel_nhm_unc − support for Intel Nehalem uncore PMU
SYNOPSIS#include <perfmon/pfmlib.h>
PMU name: nhm_unc
PMU desc: Intel Nehalem uncore
DESCRIPTION
The library supports the Nehalem uncore PMU as implemented by processors such as Intel Core i7, and Intel Core i5. The PMU is located at the socket-level and is therefore shared between the various cores. By construction it can only measure at all privilege levels.
MODIFIERSThe following modifiers are supported on Intel Nehalem processors: 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]. o Causes the queue occupancy counter associated with the event to be cleared (zeroed). This is a boolean modifier.
AUTHORSStephane Eranian <eranian@gmail.com>
∞.PP
0
Johanes Gumabo
Data Size : 4,208 byte
man-libpfm_intel_nhm_unc.3Build : 2024-12-05, 20:55 :
Visitor Screen : x
Visitor Counter ( page / site ) : 3 / 199,479
Visitor ID : :
Visitor IP : 18.219.12.88 :
Visitor Provider : AMAZON-02 :
Provider Position ( lat x lon ) : 39.962500 x -83.006100 : x
Provider Accuracy Radius ( km ) : 1000 :
Provider City : Columbus :
Provider Province : Ohio , : ,
Provider Country : United States :
Provider Continent : North America :
Visitor Recorder : Version :
Visitor Recorder : Library :
Online Linux Manual Page : Version : Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page : Library : lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page : Library : lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base : Version : Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base : Library : lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36
Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .
If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.