Hello,
This patch contains a change to use an event that is available for
counting in the user-only domain for instructions retired.
PAPI has been using this event for PAPI_TOT_INS for quite some time, and
so there has been a difference between what libpfm would give for
instructions retired and what PAPI would use for PAPI_TOT_INS. Because
the event that libpfm chose was available only on a fixed counter which
was not gateable by the privilege level, attempting to count this event
in priviledge level other than PLM3|PLM1|PLM0 resulted in the libpfm
dispatch function rejecting the event combination.
The replacement event that I've chosen to switch to is not available in
every group, but does have the advantage that it can be counted in
specific domains (such as PLM3). Because of this, you can now run the
libpfm examples without modification on Power5+ and Power6.
Please note that some of the examples, in particular self_smpl_multi,
still exhibit problems that we are looking into.
Thanks for your consideration.
- Corey
Corey Ashford
Software Engineer
IBM Linux Technology Center, Linux Toolchain
Beaverton, OR
503-578-3507
[email protected]
Index: lib/pfmlib_gen_powerpc.c
===================================================================
RCS file: /cvsroot/perfmon2/libpfm/lib/pfmlib_gen_powerpc.c,v
retrieving revision 1.9
diff -u -p -3 -r1.9 pfmlib_gen_powerpc.c
--- lib/pfmlib_gen_powerpc.c 2 Dec 2008 02:10:40 -0000 1.9
+++ lib/pfmlib_gen_powerpc.c 6 Jan 2009 21:43:15 -0000
@@ -873,10 +873,10 @@ pfm_gen_powerpc_get_inst_retired(pfmlib_
e->event = POWER5_PME_PM_INST_CMPL;
break;
case PFMLIB_POWER5p_PMU:
- e->event = POWER5p_PME_PM_RUN_INST_CMPL;
+ e->event = POWER5p_PME_PM_INST_CMPL;
break;
case PFMLIB_POWER6_PMU:
- e->event = POWER6_PME_PM_RUN_INST_CMPL;
+ e->event = POWER6_PME_PM_INST_CMPL;
break;
default:
/* perhaps gen_powerpc_suport.pmu_type wasn't initialized? */
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