75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
package mem
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import (
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"fmt"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/inputs"
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"github.com/influxdata/telegraf/plugins/inputs/system"
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)
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type MemStats struct {
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ps system.PS
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}
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func (_ *MemStats) Description() string {
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return "Read metrics about memory usage"
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}
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func (_ *MemStats) SampleConfig() string { return "" }
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func (s *MemStats) Gather(acc telegraf.Accumulator) error {
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vm, err := s.ps.VMStat()
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if err != nil {
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return fmt.Errorf("error getting virtual memory info: %s", err)
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}
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fields := map[string]interface{}{
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"total": vm.Total,
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"available": vm.Available,
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"used": vm.Used,
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"free": vm.Free,
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"cached": vm.Cached,
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"buffered": vm.Buffers,
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"active": vm.Active,
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"inactive": vm.Inactive,
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"wired": vm.Wired,
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"slab": vm.Slab,
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"used_percent": 100 * float64(vm.Used) / float64(vm.Total),
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"available_percent": 100 * float64(vm.Available) / float64(vm.Total),
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"commit_limit": vm.CommitLimit,
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"committed_as": vm.CommittedAS,
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"dirty": vm.Dirty,
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"high_free": vm.HighFree,
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"high_total": vm.HighTotal,
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"huge_page_size": vm.HugePageSize,
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"huge_pages_free": vm.HugePagesFree,
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"huge_pages_total": vm.HugePagesTotal,
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"low_free": vm.LowFree,
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"low_total": vm.LowTotal,
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"mapped": vm.Mapped,
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"page_tables": vm.PageTables,
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"shared": vm.Shared,
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"sreclaimable": vm.SReclaimable,
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"sunreclaim": vm.SUnreclaim,
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"swap_cached": vm.SwapCached,
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"swap_free": vm.SwapFree,
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"swap_total": vm.SwapTotal,
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"vmalloc_chunk": vm.VMallocChunk,
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"vmalloc_total": vm.VMallocTotal,
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"vmalloc_used": vm.VMallocUsed,
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"write_back": vm.Writeback,
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"write_back_tmp": vm.WritebackTmp,
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}
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acc.AddGauge("mem", fields, nil)
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return nil
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}
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func init() {
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ps := system.NewSystemPS()
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inputs.Add("mem", func() telegraf.Input {
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return &MemStats{ps: ps}
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})
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}
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