LIBPFM - Online Linux Manual PageSection : 3
Updated : January, 2018
Source :
Note : Linux Programmer's Manual
NAMElibpfm_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.
MODIFIERSThe 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 eventsThe 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
AUTHORSStephane Eranian <eranian@gmail.com>
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Johanes Gumabo
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