68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
package stats
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import (
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"fmt"
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"math"
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"sync"
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"github.com/shirou/gopsutil/cpu"
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)
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var (
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cpuMhzPerCore float64
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cpuModelName string
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cpuNumCores int
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cpuTotalTicks float64
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onceLer sync.Once
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)
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func Init() error {
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var err error
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onceLer.Do(func() {
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if cpuNumCores, err = cpu.Counts(true); err != nil {
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err = fmt.Errorf("Unable to determine the number of CPU cores available: %v", err)
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return
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}
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var cpuInfo []cpu.InfoStat
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if cpuInfo, err = cpu.Info(); err != nil {
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err = fmt.Errorf("Unable to obtain CPU information: %v", err)
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return
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}
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for _, cpu := range cpuInfo {
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cpuModelName = cpu.ModelName
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cpuMhzPerCore = cpu.Mhz
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break
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}
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// Floor all of the values such that small difference don't cause the
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// node to fall into a unique computed node class
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cpuMhzPerCore = math.Floor(cpuMhzPerCore)
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cpuTotalTicks = math.Floor(float64(cpuNumCores) * cpuMhzPerCore)
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})
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return err
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}
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// CPUModelName returns the number of CPU cores available
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func CPUNumCores() int {
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return cpuNumCores
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}
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// CPUMHzPerCore returns the MHz per CPU core
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func CPUMHzPerCore() float64 {
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return cpuMhzPerCore
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}
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// CPUModelName returns the model name of the CPU
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func CPUModelName() string {
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return cpuModelName
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}
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// TotalTicksAvailable calculates the total frequency available across all
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// cores
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func TotalTicksAvailable() float64 {
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return cpuTotalTicks
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}
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