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-rw-r--r--tools/perf/pmu-events/arch/arm64/sbsa.json24
1 files changed, 12 insertions, 12 deletions
diff --git a/tools/perf/pmu-events/arch/arm64/sbsa.json b/tools/perf/pmu-events/arch/arm64/sbsa.json
index f90b338261ac..4eed79a28f6e 100644
--- a/tools/perf/pmu-events/arch/arm64/sbsa.json
+++ b/tools/perf/pmu-events/arch/arm64/sbsa.json
@@ -1,34 +1,34 @@
[
{
- "MetricExpr": "stall_slot_frontend / (#slots * cpu_cycles)",
- "BriefDescription": "Frontend bound L1 topdown metric",
+ "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))",
+ "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.",
"DefaultMetricgroupName": "TopdownL1",
"MetricGroup": "Default;TopdownL1",
"MetricName": "frontend_bound",
- "ScaleUnit": "100%"
+ "ScaleUnit": "1percent of slots"
},
{
- "MetricExpr": "(1 - op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles))",
- "BriefDescription": "Bad speculation L1 topdown metric",
+ "MetricExpr": "100 * ((1 - op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))",
+ "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.",
"DefaultMetricgroupName": "TopdownL1",
"MetricGroup": "Default;TopdownL1",
"MetricName": "bad_speculation",
- "ScaleUnit": "100%"
+ "ScaleUnit": "1percent of slots"
},
{
- "MetricExpr": "(op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles))",
- "BriefDescription": "Retiring L1 topdown metric",
+ "MetricExpr": "100 * ((op_retired / op_spec) * (1 - stall_slot / (#slots * cpu_cycles)))",
+ "BriefDescription": "This metric is the percentage of total slots that retired operations, which indicates cycles that were utilized efficiently.",
"DefaultMetricgroupName": "TopdownL1",
"MetricGroup": "Default;TopdownL1",
"MetricName": "retiring",
- "ScaleUnit": "100%"
+ "ScaleUnit": "1percent of slots"
},
{
- "MetricExpr": "stall_slot_backend / (#slots * cpu_cycles)",
- "BriefDescription": "Backend Bound L1 topdown metric",
+ "MetricExpr": "100 * (stall_slot_backend / (#slots * cpu_cycles))",
+ "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the backend of the processor.",
"DefaultMetricgroupName": "TopdownL1",
"MetricGroup": "Default;TopdownL1",
"MetricName": "backend_bound",
- "ScaleUnit": "100%"
+ "ScaleUnit": "1percent of slots"
}
]