perfmon2
   improving performance monitoring on Linux
 
News
Friday, February 21st, 2014
libpfm-4.5.0 released!

A new version of libpfm4 is available.

A lot of new hardware support:

  • Intel ivyBridge-EP uncore PMUs (all boxes)
  • Intel Silvermont core PMU
  • Intel RAPL events support
  • IBM Power 8 PMU
  • AMD Fam15h Northbridge PMU
  • Perf_events raw event syntax (rXXXX)
  • Qualcomm Krait PMU
  • bug fixes and many other improvements

The tarball is available from the Project Files link on the left, and then libpfm4, or click here

Friday, June 14th, 2013
libpfm-4.4.0 released!

A new version of libpfm4 is finally available. This release is meant for perf_events on Linux.

Lots of updates in this release:

  • Intel SandyBridge-EP uncore PMU support (all boxes)
  • Intel IvyBridge desktop core and uncore PMU support
  • Intel IvyBridge-EP core PMU support
  • newer Intel Haswell desktop core PMU support
  • newer Intel Atom
  • Intel Knigts Corner
  • Intel Nehalem, Westmere, SandyBridge, IvyBridge, Haswell PEBS Load Latency modifier (ldlat)
  • many bug fixes and other minor improvements

The tarball is available from the Project Files link on the left, and then libpfm4, or click here

Tuesday, Aug 28th, 2012
libpfm-4.3.0 released!

A new version of libpfm4 is finally available. This release is meant for perf_events on Linux. It does not work with the older perfmon interface

Lots of updates in this release:

  • Intel Sandy Bridge core PMU event update
  • Intel Sandy Bridge (desktop) uncore PMU support
  • Intel Ivy Bridge (desktop) core PMU support
  • ARM Cortex A15 PMU support
  • AMD Turion, LLano core PMU support
  • Intel Cedarview Atom core PMU support
  • perf_events generic hw events alias (cycles, instructions) support
  • updated perf_event examples
  • many bug fixes and other minor improvements

The tarball is available from the Project File link on the left, and then libpfm4, or click here

Friday, Oct 7th, 2011
libpfm-4.2.0 released!

A new version of libpfm4 is now available. This release is meant for perf_events on Linux. It does not work with the older perfmon interface

There were many improvements in this new version:

  • new AMD Fam15h support (thanks to Robert Richter from AMD)
  • Updated ARM Cortex A8/A9 support (thanks to Vince Weaver for his help on this)
  • new MIPS 74k support contributed by Phil Mucci (SamaraTechnologies)
  • 30% reduction in size for Intel/AMD event tables
  • improved support for Intel NHM/WSM/SNB offcore_response event
  • many bug fixes and other improvements

The tarball is available from the Project File link on the left, and then libpfm4, or click here

Wednesday, May 18th, 2011
libpfm-4.1.0 released!

The first version of libpfm4, libpfm4-1.0, is now ready for download.

This release is meant for perf_events on Linux. It does not work with the older perfmon interface

In this initial release, the library provides support for many X86 and non x86 processors. Check README for more details

Special thanks to all the people who helped with this release.

The tarball is available from the Project File link on the left, and then libpfm4, or click here

Wednesday, March 2nd, 2011
updated man pages, better API, better processor support

There was a major refresh of the libpfm4 user API to make is easier to use and extend in the future. We are nearing the release of version 1.0

We have updated support for most of the non x86-processors, incl. SPARC, ARM, Power


Thursday, June 3rd, 2010
libpfm4 git commit list

A libpfm4 git commit mailing has been created to allow users to tracks changes to the library.

To subscribe to the list, click here.

Thursday, December 31st, 2009
libpfm4 update

There were some major API changes to libpfm4. It is now simpler with fewer calls while providing default unit masks and more robust sanity checks on event strings. All the source is available in the GIT tree. Man pages and online documentation have also been updated.

For documentation, click here.

Friday, October 1st, 2009
libpfm4 source code available

The libpfm4 source code is now available for download. The source is managed via GIT. A git tree has been setup. It is totally separate from the CVS repository for libpfm3 and pfmon.

No formal release of libpfm4 is available as of now.

To clone the GIT tree:

  $ git clone git://perfmon2.git.sourceforge.net/gitroot/perfmon2/libpfm4
  
Wednesday, September 30th, 2009
libpfm4 documentation available

Libpfm4 is a complete redesign of libpfm3, almost all the code has been rewritten from scratch. This new version offers much better flexibility and simplicity to express events. It is not backward compatible with libpfm3.x.

Libpfm4 currently does not offer perfmon2.x support. It is initially targeted for the perf_events interface which has been selected over perfmon2.x to be in the upstream kernel. Perf_events is available since Linux v2.6.31 but only on Intel and AMD X86 and IBM Power processors.

Libpfm4 source code will be uploaded shortly. It will be available as a separate package from libpfm3.x. It will use GIT instead of CVS for source control.

The documentation for libpfm4, in the form of man pages, is now available on this site. It provides the complete view of the new interface. It is recommended to start with the introduction man page: libpfm.

To access the documentation, click on the Documentation link here.