Add minor improvements to PSI metrics

Signed-off-by: Felix Ehrenpfort <[email protected]>

Author: xinau

Diff for: cmd/go.mod

@@ -129,4 +129,3 @@ require (
 	google.golang.org/protobuf v1.36.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-

Diff for: metrics/prometheus.go

@@ -33,6 +33,11 @@ import (
 // asFloat64 converts a uint64 into a float64.
 func asFloat64(v uint64) float64 { return float64(v) }
 
+// asMicrosecondsToSeconds converts nanoseconds into a float64 representing seconds.
+func asMicrosecondsToSeconds(v uint64) float64 {
+	return float64(v) / float64(time.Millisecond)
+}
+
 // asNanosecondsToSeconds converts nanoseconds into a float64 representing seconds.
 func asNanosecondsToSeconds(v uint64) float64 {
 	return float64(v) / float64(time.Second)
@@ -1749,46 +1754,39 @@ func NewPrometheusCollector(i infoProvider, f ContainerLabelsFunc, includedMetri
 	if includedMetrics.Has(container.PressureMetrics) {
 		c.containerMetrics = append(c.containerMetrics, []containerMetric{
 			{
-				name:      "container_pressure_cpu_stalled_seconds_total",
-				help:      "Total time duration no tasks in the container could make progress due to CPU congestion.",
-				valueType: prometheus.CounterValue,
-				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.Cpu.PSI.Full.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
-				},
-			}, {
 				name:      "container_pressure_cpu_waiting_seconds_total",
 				help:      "Total time duration tasks in the container have waited due to CPU congestion.",
 				valueType: prometheus.CounterValue,
 				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.Cpu.PSI.Some.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
+					return metricValues{{value: asMicrosecondsToSeconds(s.Cpu.PSI.Some.Total), timestamp: s.Timestamp}}
 				},
 			}, {
 				name:      "container_pressure_memory_stalled_seconds_total",
 				help:      "Total time duration no tasks in the container could make progress due to memory congestion.",
 				valueType: prometheus.CounterValue,
 				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.Memory.PSI.Full.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
+					return metricValues{{value: asMicrosecondsToSeconds(s.Memory.PSI.Full.Total), timestamp: s.Timestamp}}
 				},
 			}, {
 				name:      "container_pressure_memory_waiting_seconds_total",
 				help:      "Total time duration tasks in the container have waited due to memory congestion.",
 				valueType: prometheus.CounterValue,
 				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.Memory.PSI.Some.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
+					return metricValues{{value: asMicrosecondsToSeconds(s.Memory.PSI.Some.Total), timestamp: s.Timestamp}}
 				},
 			}, {
 				name:      "container_pressure_io_stalled_seconds_total",
 				help:      "Total time duration no tasks in the container could make progress due to IO congestion.",
 				valueType: prometheus.CounterValue,
 				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.DiskIo.PSI.Full.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
+					return metricValues{{value: asMicrosecondsToSeconds(s.DiskIo.PSI.Full.Total), timestamp: s.Timestamp}}
 				},
 			}, {
 				name:      "container_pressure_io_waiting_seconds_total",
 				help:      "Total time duration tasks in the container have waited due to IO congestion.",
 				valueType: prometheus.CounterValue,
 				getValues: func(s *info.ContainerStats) metricValues {
-					return metricValues{{value: float64(s.DiskIo.PSI.Some.Total) / 1000.0 / 1000.0, timestamp: s.Timestamp}}
+					return metricValues{{value: asMicrosecondsToSeconds(s.DiskIo.PSI.Some.Total), timestamp: s.Timestamp}}
 				},
 			},
 		}...)