LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
libpfm_intel_atom - support for Intel Atom processors
#include <perfmon/pfmlib.h> PMU name: atom PMU desc: Intel Atom
The library supports all Intel Atom-based processors that includes family 6 model 28.
The following modifiers are supported on Intel Atom processors: u Measure at user level which includes privilege levels 1, 2, 3. This corresponds to PFM_PLM3. This is a boolean modifier. k Measure at kernel level which includes privilege level 0. This corresponds to PFM_PLM0. This is a boolean modifier. 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]. t Measure on both threads at the same time assuming hyper- threading is enabled. This is a boolean modifier.
Stephane Eranian <email@example.com>
This page is part of the perfmon2 (a performance monitoring library) project. Information about the project can be found at ⟨http://perfmon2.sourceforge.net/⟩. If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨git://git.code.sf.net/p/perfmon2/libpfm4 perfmon2-libpfm4⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-04.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com September, 2009 LIBPFM(3)
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