Add AIX CPU collector

collector/cpu_aix.go

@@ -0,0 +1,56 @@
+// Copyright 2024 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build !nocpu
+// +build !nocpu
+
+package collector
+
+import (
+	"strconv"
+
+	"github.com/go-kit/log"
+	"github.com/power-devops/perfstat"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+type cpuCollector struct {
+	cpu    typedDesc
+	logger log.Logger
+}
+
+func init() {
+	registerCollector("cpu", defaultEnabled, NewCpuCollector)
+}
+
+func NewCpuCollector(logger log.Logger) (Collector, error) {
+	return &cpuCollector{
+		cpu:    typedDesc{nodeCPUSecondsDesc, prometheus.CounterValue},
+		logger: logger,
+	}, nil
+}
+
+func (c *cpuCollector) Update(ch chan<- prometheus.Metric) error {
+	stats, err := perfstat.CpuStat()
+	if err != nil {
+		return err
+	}
+
+	for n, stat := range stats {
+		ch <- c.cpu.mustNewConstMetric(float64(stat.User), strconv.Itoa(n), "user")
+		ch <- c.cpu.mustNewConstMetric(float64(stat.Sys), strconv.Itoa(n), "system")
+		ch <- c.cpu.mustNewConstMetric(float64(stat.Idle), strconv.Itoa(n), "idle")
+		ch <- c.cpu.mustNewConstMetric(float64(stat.Wait), strconv.Itoa(n), "wait")
+	}
+	return nil
+}

go.mod

@@ -21,6 +21,7 @@ require (
 	github.com/mdlayher/netlink v1.7.2
 	github.com/mdlayher/wifi v0.2.0
 	github.com/opencontainers/selinux v1.11.0
+	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55
 	github.com/prometheus-community/go-runit v0.1.0
 	github.com/prometheus/client_golang v1.19.1
 	github.com/prometheus/client_model v0.6.1