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.TH LIBPFM 3 "November, 2023" "" "Linux Programmer's Manual"
.SH NAME
libpfm_intel_icx_unc_iio - support for Intel IcelakeX Server IIO uncore PMU
.SH SYNOPSIS
.nf
.B #include <perfmon/pfmlib.h>
.sp
.B PMU name: icx_unc_iio[0-5]
.B PMU desc: Intel IcelakeX IIO uncore PMU
.sp
.SH DESCRIPTION
The library supports the Intel IcelakeX IIO (I/O controller) uncore PMU.
Each IIO PMU implements 4 generic counters and free running counters (not yet supported by libpfm4).
The current version of libpfm4 does not expose the \fBfc_mask\fR and \fBch_mask\fR filter because these are
hardcoded in the events provided by the library.
.SH MODIFIERS
The following modifiers are supported on Intel IcelakeX IIO uncore PMU:
.TP
.B 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.
.TP
.B t
Set the threshold value. When set to a non-zero value, the counter counts the number
of IIO clockticks 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].
.TP
.B i
Invert the threshold (t) test from strictly greater than to less or equal to. This is a boolean modifier.
.SH AUTHORS
.nf
Stephane Eranian <eranian@gmail.com>
.if
.PP
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