Hello,
I have released another version of the perfmon new code base package.
This release is relative to 2.6.17-rc4
There were, once again, new system calls added. As such a new libpfm is
necessary.
This new kernel patch includes a few changes:
- Merged P6 and Pentium M processors PMU description tables.
perfmon_pm.c is mergde into perfmon_p6.c
- change system call number for all architectures.
This release uses the new/mod patch breakdown for all architectures.
To apply, you can simply do:
cat ../perfmon-new-base-060512/*.diff | patch -p1
The new version of the library, libpfm, includes the following changes:
- updated to match 2.6.17-rc4 new system call numbers
- enhancement to MIPS support (Phil Mucci)
- modified internal get_event_code() to get_event_code_counter()
to accomodate PMU where an event code depends on the counter where
it is programmed.
- enhanced P6 CPU detection
- preliminary support for the IA-32 architected PMU as described
in the latest version of the IA-32 architecture manuals. You need
a Core Duo/Solo processor for this to work. Note that the architected
PMU for those models only gives access to a subset of the features.
I do not have a Core Duo machine myself so I could not actually test this code.
I would appreciate if somebody could test the libpfm examples on such machine
and
report back to me. I am glad to see that IA-32 finally has the beginning of an
architected PMU.
You can grab the new packages at our web site: http://perfmon2.sf.net
It looks like SF.net is close to fixing the CVS outage. When that happens I
will be
able to populate the repository for both libpfm and pfmon.
I will post a clear text patch to lkml shortly.
Enjoy,
--
-Stephane
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