132 lines
2.8 KiB
Go
132 lines
2.8 KiB
Go
package procstat
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import (
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"fmt"
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"time"
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"github.com/shirou/gopsutil/process"
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"github.com/influxdb/telegraf/plugins/inputs"
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)
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type SpecProcessor struct {
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Prefix string
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tags map[string]string
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fields map[string]interface{}
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acc inputs.Accumulator
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proc *process.Process
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}
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func (p *SpecProcessor) add(metric string, value interface{}) {
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var mname string
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if p.Prefix == "" {
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mname = metric
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} else {
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mname = p.Prefix + "_" + metric
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}
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p.fields[mname] = value
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}
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func (p *SpecProcessor) flush() {
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p.acc.AddFields("procstat", p.fields, p.tags)
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p.fields = make(map[string]interface{})
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}
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func NewSpecProcessor(
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prefix string,
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acc inputs.Accumulator,
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p *process.Process,
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) *SpecProcessor {
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tags := make(map[string]string)
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tags["pid"] = fmt.Sprintf("%v", p.Pid)
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if name, err := p.Name(); err == nil {
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tags["process_name"] = name
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}
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return &SpecProcessor{
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Prefix: prefix,
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tags: tags,
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fields: make(map[string]interface{}),
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acc: acc,
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proc: p,
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}
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}
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func (p *SpecProcessor) pushMetrics() {
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p.pushFDStats()
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p.pushCtxStats()
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p.pushIOStats()
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p.pushCPUStats()
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p.pushMemoryStats()
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p.flush()
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}
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func (p *SpecProcessor) pushFDStats() error {
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fds, err := p.proc.NumFDs()
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if err != nil {
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return fmt.Errorf("NumFD error: %s\n", err)
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}
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p.add("num_fds", fds)
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return nil
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}
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func (p *SpecProcessor) pushCtxStats() error {
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ctx, err := p.proc.NumCtxSwitches()
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if err != nil {
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return fmt.Errorf("ContextSwitch error: %s\n", err)
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}
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p.add("voluntary_context_switches", ctx.Voluntary)
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p.add("involuntary_context_switches", ctx.Involuntary)
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return nil
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}
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func (p *SpecProcessor) pushIOStats() error {
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io, err := p.proc.IOCounters()
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if err != nil {
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return fmt.Errorf("IOCounters error: %s\n", err)
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}
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p.add("read_count", io.ReadCount)
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p.add("write_count", io.WriteCount)
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p.add("read_bytes", io.ReadBytes)
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p.add("write_bytes", io.WriteCount)
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return nil
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}
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func (p *SpecProcessor) pushCPUStats() error {
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cpu_time, err := p.proc.CPUTimes()
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if err != nil {
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return err
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}
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p.add("cpu_time_user", cpu_time.User)
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p.add("cpu_time_system", cpu_time.System)
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p.add("cpu_time_idle", cpu_time.Idle)
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p.add("cpu_time_nice", cpu_time.Nice)
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p.add("cpu_time_iowait", cpu_time.Iowait)
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p.add("cpu_time_irq", cpu_time.Irq)
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p.add("cpu_time_soft_irq", cpu_time.Softirq)
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p.add("cpu_time_steal", cpu_time.Steal)
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p.add("cpu_time_stolen", cpu_time.Stolen)
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p.add("cpu_time_guest", cpu_time.Guest)
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p.add("cpu_time_guest_nice", cpu_time.GuestNice)
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cpu_perc, err := p.proc.CPUPercent(time.Duration(0))
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if err != nil {
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return err
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} else if cpu_perc == 0 {
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return nil
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}
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p.add("cpu_usage", cpu_perc)
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return nil
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}
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func (p *SpecProcessor) pushMemoryStats() error {
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mem, err := p.proc.MemoryInfo()
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if err != nil {
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return err
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}
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p.add("memory_rss", mem.RSS)
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p.add("memory_vms", mem.VMS)
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p.add("memory_swap", mem.Swap)
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return nil
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}
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