Messages in this thread | | | Date | Wed, 30 Jul 2008 15:31:36 -0700 | From | "stephane eranian" <> | Subject | 2.6.26 new perfmon kernel patch + libpfm + pfmon available |
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Hello,
I have released the perfmon2 kernel patch for kernel v2.6.26. There is no new major features. Concerning the merge with mainline, we use a different code base which contains only code to supports only per-thread counting on X86 processors. The patch is distributed as a quilt patchset and is posted on LKML.
Here are some of the kernel changes: - Support for Intel architectural perfmon v3 (as per IA-32 Vol3b June 2008) - base syscall exported in /sys/kernel/perfmon/syscall - experimental utrace support - added dep_pmcs[] to PMD definitions to avoid picking up stale config - important IBM Power updates to solve counter overflow issues (Corey Ashford) - AMD64 APIC/PCI cleanups for IBS support (Robert Richter) - new API for handler routine of sampling formats to accomodate IBM Cell (Carl Love)
There is also a new release for libpfm, now at version 3.5. The changes include: - support for AMD K7 (Vince Weaver) - support for Intel architectural perfmon v3 - support for SiCortex (ICA9A, ICA9B) (Phil Mucci) - dynamic perfmon syscall support via /sys - new environment variable to control debugging and force particular PMU model
Finally, a new major version of pfmon, now at pfmon-3.5 with some minor changes: - group unknown symbols as UNKNOWN when sampling (Andrzej Nowak) - lots of bug fixes
As usual all files and more detailed changelogs can be downloaded from our website at:
http://perfmon2.sourceforge.net
Enjoy,
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