1LIBPFM(3)                  Linux Programmer's Manual                 LIBPFM(3)
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NAME

6       libpfm_intel_atom - support for Intel Atom processors
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SYNOPSIS

9       #include <perfmon/pfmlib.h>
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11       PMU name: atom
12       PMU desc: Intel Atom
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DESCRIPTION

16       The library supports all Intel Atom-based processors that includes fam‐
17       ily 6 model 28.
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MODIFIERS

21       The following modifiers are supported on Intel Atom processors:
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23       u      Measure at user level which includes privilege levels 1,  2,  3.
24              This corresponds to PFM_PLM3.  This is a boolean modifier.
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26       k      Measure  at  kernel level which includes privilege level 0. This
27              corresponds to PFM_PLM0.  This is a boolean modifier.
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29       i      Invert the meaning of the event.  The  counter  will  now  count
30              cycles  in  which  the event is not occurring. This is a boolean
31              modifier
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33       e      Enable edge detection, i.e., count only when there  is  a  state
34              transition. This is a boolean modifier.
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36       c      Set  the  counter  mask value. The mask acts as a threshold. The
37              counter will count the number of cycles in which the  number  of
38              occurrences  of  the event is greater or equal to the threshold.
39              This is an integer modifier with values in the range [0:255].
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41       t      Measure on both threads at the same time assuming  hyper-thread‐
42              ing is enabled. This is a boolean modifier.
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AUTHORS

45       Stephane Eranian <eranian@gmail.com>
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49                                September, 2009                      LIBPFM(3)