1[ 2 { 3 "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))", 4 "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.", 5 "DefaultMetricgroupName": "TopdownL1", 6 "MetricGroup": "Default;TopdownL1", 7 "MetricName": "frontend_bound", 8 "ScaleUnit": "1percent of slots" 9 }, 10 { 11 "MetricExpr": "100 * ((1 - op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))", 12 "BriefDescription": "This metric is the percentage of total slots that executed operations and didn't retire due to a pipeline flush.\nThis indicates cycles that were utilized but inefficiently.", 13 "DefaultMetricgroupName": "TopdownL1", 14 "MetricGroup": "Default;TopdownL1", 15 "MetricName": "bad_speculation", 16 "ScaleUnit": "1percent of slots" 17 }, 18 { 19 "MetricExpr": "100 * ((op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))", 20 "BriefDescription": "This metric is the percentage of total slots that retired operations, which indicates cycles that were utilized efficiently.", 21 "DefaultMetricgroupName": "TopdownL1", 22 "MetricGroup": "Default;TopdownL1", 23 "MetricName": "retiring", 24 "ScaleUnit": "1percent of slots" 25 }, 26 { 27 "MetricExpr": "100 * (stall_slot_backend / (#slots * cpu_cycles))", 28 "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the backend of the processor.", 29 "DefaultMetricgroupName": "TopdownL1", 30 "MetricGroup": "Default;TopdownL1", 31 "MetricName": "backend_bound", 32 "ScaleUnit": "1percent of slots" 33 } 34] 35