perf vendor events: Update PMC used in PM_RUN_INST_CMPL event for power10 platform
[ Upstream commit 3f8b6e5b11192dacb721d2d28ea4589917f5e822 ] The CPI_STALL_RATIO metric group can be used to present the high level CPI stall breakdown metrics in powerpc, which will show: - DISPATCH_STALL_CPI ( Dispatch stall cycles per insn ) - ISSUE_STALL_CPI ( Issue stall cycles per insn ) - EXECUTION_STALL_CPI ( Execution stall cycles per insn ) - COMPLETION_STALL_CPI ( Completion stall cycles per insn ) Commitcf26e043c2
("perf vendor events power10: Add JSON metric events to present CPI stall cycles in powerpc)" which added the CPI_STALL_RATIO metric group, also modified the PMC value used in PM_RUN_INST_CMPL event from PMC4 to PMC5, to avoid multiplexing of events. But that got revert in recent changes. Fix this issue by changing back the PMC value used in PM_RUN_INST_CMPL to PMC5. Result with the fix: ./perf stat --metric-no-group -M CPI_STALL_RATIO <workload> Performance counter stats for 'workload': 68,745,426 PM_CMPL_STALL # 0.21 COMPLETION_STALL_CPI 7,692,827 PM_ISSUE_STALL # 0.02 ISSUE_STALL_CPI 322,638,223 PM_RUN_INST_CMPL # 0.05 DISPATCH_STALL_CPI # 0.48 EXECUTION_STALL_CPI 16,858,553 PM_DISP_STALL_CYC 153,880,133 PM_EXEC_STALL 0.089774592 seconds time elapsed "--metric-no-group" is used for forcing PM_RUN_INST_CMPL to be scheduled in all group for more accuracy. Fixes:7d473f475b
("perf vendor events: Move JSON/events to appropriate files for power10 platform") Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com> Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Tested-by: Disha Goel<disgoel@linux.ibm.com> Cc: maddy@linux.ibm.com Link: https://lore.kernel.org/r/20231016143110.244255-1-kjain@linux.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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"BriefDescription": "Threshold counter exceeded a value of 128."
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},
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{
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"EventCode": "0x400FA",
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"EventCode": "0x500FA",
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"EventName": "PM_RUN_INST_CMPL",
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"BriefDescription": "PowerPC instruction completed while the run latch is set."
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}
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