54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
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// +build !windows
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package util
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import (
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"runtime"
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docker "github.com/fsouza/go-dockerclient"
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cstructs "github.com/hashicorp/nomad/client/structs"
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"github.com/hashicorp/nomad/helper/stats"
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)
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var (
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DockerMeasuredCPUStats = []string{"Throttled Periods", "Throttled Time", "Percent"}
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DockerMeasuredMemStats = []string{"RSS", "Cache", "Swap", "Usage", "Max Usage"}
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)
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func DockerStatsToTaskResourceUsage(s *docker.Stats) *cstructs.TaskResourceUsage {
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ms := &cstructs.MemoryStats{
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RSS: s.MemoryStats.Stats.Rss,
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Cache: s.MemoryStats.Stats.Cache,
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Swap: s.MemoryStats.Stats.Swap,
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Usage: s.MemoryStats.Usage,
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MaxUsage: s.MemoryStats.MaxUsage,
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Measured: DockerMeasuredMemStats,
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}
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cs := &cstructs.CpuStats{
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ThrottledPeriods: s.CPUStats.ThrottlingData.ThrottledPeriods,
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ThrottledTime: s.CPUStats.ThrottlingData.ThrottledTime,
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Measured: DockerMeasuredCPUStats,
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}
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// Calculate percentage
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cs.Percent = CalculateCPUPercent(
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s.CPUStats.CPUUsage.TotalUsage, s.PreCPUStats.CPUUsage.TotalUsage,
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s.CPUStats.SystemCPUUsage, s.PreCPUStats.SystemCPUUsage, runtime.NumCPU())
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cs.SystemMode = CalculateCPUPercent(
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s.CPUStats.CPUUsage.UsageInKernelmode, s.PreCPUStats.CPUUsage.UsageInKernelmode,
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s.CPUStats.CPUUsage.TotalUsage, s.PreCPUStats.CPUUsage.TotalUsage, runtime.NumCPU())
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cs.UserMode = CalculateCPUPercent(
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s.CPUStats.CPUUsage.UsageInUsermode, s.PreCPUStats.CPUUsage.UsageInUsermode,
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s.CPUStats.CPUUsage.TotalUsage, s.PreCPUStats.CPUUsage.TotalUsage, runtime.NumCPU())
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cs.TotalTicks = (cs.Percent / 100) * stats.TotalTicksAvailable() / float64(runtime.NumCPU())
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return &cstructs.TaskResourceUsage{
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ResourceUsage: &cstructs.ResourceUsage{
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MemoryStats: ms,
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CpuStats: cs,
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},
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Timestamp: s.Read.UTC().UnixNano(),
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}
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}
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