поддержка Intel Skylake X Server IIO uncore PMU (support for Intel Skylake X Server IIO uncore PMU)
Имя (Name)
libpfm_intel_skx_unc_ubo - support for Intel Skylake X Server IIO
uncore PMU
Синопсис (Synopsis)
#include <perfmon/pfmlib.h>
PMU name: skx_unc_iio[0-5]
PMU desc: Intel Skylake X Server IIO uncore PMU
Описание (Description)
The library supports the Intel Skylake X server IIO uncore PMU.
The IIO PMU is used to analyze I/O traffic from the PCIe
controllers.
Модификаторы (Modifiers)
The following modifiers are supported on Intel Skylake X server
IIO 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 HA 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 [0:15].
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
Фильтры (Filters)
Events UNC_IO_COMP_BUF_INSERTS, UNC_IO_DATA_REQ_BY_CPU,
UNC_IO_DATA_REQ_OF_CPU, support additional filtering via a set of
umasks tracking requests completions. They umasks start with a
FC_ prefix. The other filter is the port filter and it is
hardcoded as umasks for the same events.
