telegraf/plugins/inputs/internal/internal.go

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package internal
import (
"runtime"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/selfstat"
)
type Self struct {
CollectMemstats bool
}
func NewSelf() telegraf.Input {
return &Self{
CollectMemstats: true,
}
}
var sampleConfig = `
## If true, collect telegraf memory stats.
# collect_memstats = true
`
func (s *Self) Description() string {
return "Collect statistics about itself"
}
func (s *Self) SampleConfig() string {
return sampleConfig
}
func (s *Self) Gather(acc telegraf.Accumulator) error {
if s.CollectMemstats {
m := &runtime.MemStats{}
runtime.ReadMemStats(m)
fields := map[string]interface{}{
"alloc_bytes": m.Alloc, // bytes allocated and not yet freed
"total_alloc_bytes": m.TotalAlloc, // bytes allocated (even if freed)
"sys_bytes": m.Sys, // bytes obtained from system (sum of XxxSys below)
"pointer_lookups": m.Lookups, // number of pointer lookups
"mallocs": m.Mallocs, // number of mallocs
"frees": m.Frees, // number of frees
// Main allocation heap statistics.
"heap_alloc_bytes": m.HeapAlloc, // bytes allocated and not yet freed (same as Alloc above)
"heap_sys_bytes": m.HeapSys, // bytes obtained from system
"heap_idle_bytes": m.HeapIdle, // bytes in idle spans
"heap_in_use_bytes": m.HeapInuse, // bytes in non-idle span
"heap_released_bytes": m.HeapReleased, // bytes released to the OS
"heap_objects": m.HeapObjects, // total number of allocated objects
"num_gc": m.NumGC,
}
acc.AddFields("internal_memstats", fields, map[string]string{})
}
for _, m := range selfstat.Metrics() {
acc.AddFields(m.Name(), m.Fields(), m.Tags(), m.Time())
}
return nil
}
func init() {
inputs.Add("internal", NewSelf)
}