Hello,
First of all I want to appologize if this is not the right mailing list for
asking questions, I just haven't found any other place for my concerns.
I'm using pfmon in the perfmon2 patched kernel from git://
git.kernel.org/pub/scm/linux/kernel/git/eranian/linux-2.6.git on a Intel
Westmere-based machine
# uname -a
Linux westmere 2.6.30 #1 SMP Thu Oct 28 14:46:13 CEST 2010 x86_64 x86_64
x86_64 GNU/Linux
The installation of pfmon and libpfmon3.9 went fine, but when I run the
pfmon utility and try getting the full list of supported PMU events i get
only six:
# pfmon -L
UNHALTED_CORE_CYCLES
INSTRUCTIONS_RETIRED
LAST_LEVEL_CACHE_REFERENCES
LAST_LEVEL_CACHE_MISSES
BRANCH_INSTRUCTIONS_RETIRED
MISPREDICTED_BRANCH_RETIRED
On other x86_64 machines with the same configuration (kernel version,
libpfmon version and pfmon version) I got a lot more events which are
"observable" via pfmon, he most important for me being
the FP_COMP_OPS_EXE:X87 event, which is not available on the westmere-based
machine.
Am I doing something wrong, or is it just that the westmere-based CPU PMUs
do only support limited set of performance monitoring events?
Any ideas and suggestions will be highly appreciated!
Best regards,
Konstantin Boyanov
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