mirror of
https://github.com/0xJacky/nginx-ui.git
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46 lines
1 KiB
Go
46 lines
1 KiB
Go
package tool
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import (
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"github.com/shirou/gopsutil/v3/cpu"
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"runtime"
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"time"
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)
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type cpuUsage struct {
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Time time.Time `json:"x"`
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Usage float64 `json:"y"`
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}
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var CpuUserBuffer []cpuUsage
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var CpuTotalBuffer []cpuUsage
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func RecordCpuUsage() {
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for {
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cpuTimesBefore, _ := cpu.Times(false)
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time.Sleep(1000 * time.Millisecond)
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cpuTimesAfter, _ := cpu.Times(false)
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threadNum := runtime.GOMAXPROCS(0)
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cpuUserUsage := (cpuTimesAfter[0].User - cpuTimesBefore[0].User) / (float64(1000*threadNum) / 1000)
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cpuUserUsage *= 100
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cpuSystemUsage := (cpuTimesAfter[0].System - cpuTimesBefore[0].System) / (float64(1000*threadNum) / 1000)
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cpuSystemUsage *= 100
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now := time.Now()
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u := cpuUsage{
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Time: now,
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Usage: cpuUserUsage,
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}
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CpuUserBuffer = append(CpuUserBuffer, u)
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s := cpuUsage{
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Time: now,
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Usage: cpuUserUsage + cpuSystemUsage,
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}
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CpuTotalBuffer = append(CpuTotalBuffer, s)
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if len(CpuUserBuffer) > 200 {
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CpuUserBuffer = CpuUserBuffer[1:]
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}
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if len(CpuTotalBuffer) > 200 {
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CpuTotalBuffer = CpuTotalBuffer[1:]
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}
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}
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}
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