From: Ian Rogers <irogers@google.com>
Date: Tue, 2 Dec 2025 17:50:04 +0000 (-0800)
Subject: perf jevents: Add threshold expressions to Metric
X-Git-Tag: v6.19-rc1~61^2~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b90e94aed9080a2cfb0142e99ca4eba3e341c45e;p=thirdparty%2Fkernel%2Flinux.git

perf jevents: Add threshold expressions to Metric

Allow threshold expressions for metrics to be generated.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---

diff --git a/tools/perf/pmu-events/metric.py b/tools/perf/pmu-events/metric.py
index 0f4e67e5cfea2..e81fed2e29b5f 100644
--- a/tools/perf/pmu-events/metric.py
+++ b/tools/perf/pmu-events/metric.py
@@ -430,13 +430,15 @@ class Metric:
   expr: Expression
   scale_unit: str
   constraint: MetricConstraint
+  threshold: Optional[Expression]
 
   def __init__(self,
                name: str,
                description: str,
                expr: Expression,
                scale_unit: str,
-               constraint: MetricConstraint = MetricConstraint.GROUPED_EVENTS):
+               constraint: MetricConstraint = MetricConstraint.GROUPED_EVENTS,
+               threshold: Optional[Expression] = None):
     self.name = name
     self.description = description
     self.expr = expr.Simplify()
@@ -447,6 +449,7 @@ class Metric:
     else:
       self.scale_unit = f'1{scale_unit}'
     self.constraint = constraint
+    self.threshold = threshold
     self.groups = set()
 
   def __lt__(self, other):
@@ -473,6 +476,8 @@ class Metric:
     }
     if self.constraint != MetricConstraint.GROUPED_EVENTS:
       result['MetricConstraint'] = self.constraint.name
+    if self.threshold:
+      result['MetricThreshold'] = self.threshold.ToPerfJson()
 
     return result