tools/perf/pmu-events/arch/arm64/sbsa.json

   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 ]