telegraf/plugins/inputs/mem/memory.go

52 lines
1.2 KiB
Go

package mem
import (
"fmt"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/influxdata/telegraf/plugins/inputs/system"
)
type MemStats struct {
ps system.PS
}
func (_ *MemStats) Description() string {
return "Read metrics about memory usage"
}
func (_ *MemStats) SampleConfig() string { return "" }
func (s *MemStats) Gather(acc telegraf.Accumulator) error {
vm, err := s.ps.VMStat()
if err != nil {
return fmt.Errorf("error getting virtual memory info: %s", err)
}
fields := map[string]interface{}{
"total": vm.Total,
"available": vm.Available,
"used": vm.Used,
"free": vm.Free,
"cached": vm.Cached,
"buffered": vm.Buffers,
"active": vm.Active,
"inactive": vm.Inactive,
"wired": vm.Wired,
"slab": vm.Slab,
"used_percent": 100 * float64(vm.Used) / float64(vm.Total),
"available_percent": 100 * float64(vm.Available) / float64(vm.Total),
}
acc.AddGauge("mem", fields, nil)
return nil
}
func init() {
ps := system.NewSystemPS()
inputs.Add("mem", func() telegraf.Input {
return &MemStats{ps: ps}
})
}