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(parent: 8a08854) | patch
powerpc/perf: Use Instruction Counter value
authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>
Sun, 12 Feb 2017 17:03:14 +0000 (22:33 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 17 Feb 2017 10:48:54 +0000 (21:48 +1100)
commit356d8ce3d0a4a1d7c8448c4d234121736ad3d471
tree5f35c712ee9a717caae8fc863f1381cf3a440cc4tree | snapshot
parent8a088542c8f8d0bb458e4db2c01a2534f1adaf47commit | diff
powerpc/perf: Use Instruction Counter value

Since PM_INST_DISP include speculative instruction,
based on the workload the dispatch count could vary
considerably. Hence as an alternative, for completed
instruction counting, program the PM_INST_DISP event
to the MMCR* but use Instruction Counter register value.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/perf/core-book3s.c diff | blob | history
Domain: System / Kernel;