mirror of https://github.com/minio/minio.git
83 lines
3.0 KiB
Go
83 lines
3.0 KiB
Go
// Copyright (c) 2015-2024 MinIO, Inc.
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//
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// # This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"context"
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"math"
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)
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const (
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sysCPUAvgIdle = "avg_idle"
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sysCPUAvgIOWait = "avg_iowait"
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sysCPULoad = "load"
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sysCPULoadPerc = "load_perc"
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sysCPUNice = "nice"
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sysCPUSteal = "steal"
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sysCPUSystem = "system"
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sysCPUUser = "user"
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)
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var (
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sysCPUAvgIdleMD = NewGaugeMD(sysCPUAvgIdle, "Average CPU idle time")
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sysCPUAvgIOWaitMD = NewGaugeMD(sysCPUAvgIOWait, "Average CPU IOWait time")
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sysCPULoadMD = NewGaugeMD(sysCPULoad, "CPU load average 1min")
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sysCPULoadPercMD = NewGaugeMD(sysCPULoadPerc, "CPU load average 1min (percentage)")
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sysCPUNiceMD = NewGaugeMD(sysCPUNice, "CPU nice time")
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sysCPUStealMD = NewGaugeMD(sysCPUSteal, "CPU steal time")
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sysCPUSystemMD = NewGaugeMD(sysCPUSystem, "CPU system time")
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sysCPUUserMD = NewGaugeMD(sysCPUUser, "CPU user time")
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)
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// loadCPUMetrics - `MetricsLoaderFn` for system CPU metrics.
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func loadCPUMetrics(ctx context.Context, m MetricValues, c *metricsCache) error {
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cpuMetrics, _ := c.cpuMetrics.Get()
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if cpuMetrics.LoadStat != nil {
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m.Set(sysCPULoad, cpuMetrics.LoadStat.Load1)
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perc := cpuMetrics.LoadStat.Load1 * 100 / float64(cpuMetrics.CPUCount)
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m.Set(sysCPULoadPerc, math.Round(perc*100)/100)
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}
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ts := cpuMetrics.TimesStat
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tot := ts.User + ts.System + ts.Idle + ts.Iowait + ts.Nice + ts.Steal
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cpuUserVal := math.Round(ts.User/tot*100*100) / 100
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m.Set(sysCPUUser, cpuUserVal)
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cpuSystemVal := math.Round(ts.System/tot*100*100) / 100
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m.Set(sysCPUSystem, cpuSystemVal)
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cpuNiceVal := math.Round(ts.Nice/tot*100*100) / 100
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m.Set(sysCPUNice, cpuNiceVal)
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cpuStealVal := math.Round(ts.Steal/tot*100*100) / 100
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m.Set(sysCPUSteal, cpuStealVal)
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// metrics-resource.go runs a job to collect resource metrics including their Avg values and
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// stores them in resourceMetricsMap. We can use it to get the Avg values of CPU idle and IOWait.
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cpuResourceMetrics, found := resourceMetricsMap[cpuSubsystem]
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if found {
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if cpuIdleMetric, ok := cpuResourceMetrics[getResourceKey(cpuIdle, nil)]; ok {
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avgVal := math.Round(cpuIdleMetric.Avg*100) / 100
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m.Set(sysCPUAvgIdle, avgVal)
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}
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if cpuIOWaitMetric, ok := cpuResourceMetrics[getResourceKey(cpuIOWait, nil)]; ok {
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avgVal := math.Round(cpuIOWaitMetric.Avg*100) / 100
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m.Set(sysCPUAvgIOWait, avgVal)
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}
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}
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return nil
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}
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