Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/mem/mem.go

@@ -0,0 +1,107 @@
+//go:generate ../../../tools/readme_config_includer/generator
+package mem
+
+import (
+	_ "embed"
+	"fmt"
+	"runtime"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/common/psutil"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+//go:embed sample.conf
+var sampleConfig string
+
+type Mem struct {
+	ps       psutil.PS
+	platform string
+}
+
+func (*Mem) SampleConfig() string {
+	return sampleConfig
+}
+
+func (ms *Mem) Init() error {
+	ms.platform = runtime.GOOS
+	return nil
+}
+
+func (ms *Mem) Gather(acc telegraf.Accumulator) error {
+	vm, err := ms.ps.VMStat()
+	if err != nil {
+		return fmt.Errorf("error getting virtual memory info: %w", err)
+	}
+
+	fields := map[string]interface{}{
+		"total":             vm.Total,
+		"available":         vm.Available,
+		"used":              vm.Used,
+		"used_percent":      100 * float64(vm.Used) / float64(vm.Total),
+		"available_percent": 100 * float64(vm.Available) / float64(vm.Total),
+	}
+
+	switch ms.platform {
+	case "darwin":
+		fields["active"] = vm.Active
+		fields["free"] = vm.Free
+		fields["inactive"] = vm.Inactive
+		fields["wired"] = vm.Wired
+	case "openbsd":
+		fields["active"] = vm.Active
+		fields["cached"] = vm.Cached
+		fields["free"] = vm.Free
+		fields["inactive"] = vm.Inactive
+		fields["wired"] = vm.Wired
+	case "freebsd":
+		fields["active"] = vm.Active
+		fields["buffered"] = vm.Buffers
+		fields["cached"] = vm.Cached
+		fields["free"] = vm.Free
+		fields["inactive"] = vm.Inactive
+		fields["laundry"] = vm.Laundry
+		fields["wired"] = vm.Wired
+	case "linux":
+		fields["active"] = vm.Active
+		fields["buffered"] = vm.Buffers
+		fields["cached"] = vm.Cached
+		fields["commit_limit"] = vm.CommitLimit
+		fields["committed_as"] = vm.CommittedAS
+		fields["dirty"] = vm.Dirty
+		fields["free"] = vm.Free
+		fields["high_free"] = vm.HighFree
+		fields["high_total"] = vm.HighTotal
+		fields["huge_pages_free"] = vm.HugePagesFree
+		fields["huge_page_size"] = vm.HugePageSize
+		fields["huge_pages_total"] = vm.HugePagesTotal
+		fields["inactive"] = vm.Inactive
+		fields["low_free"] = vm.LowFree
+		fields["low_total"] = vm.LowTotal
+		fields["mapped"] = vm.Mapped
+		fields["page_tables"] = vm.PageTables
+		fields["shared"] = vm.Shared
+		fields["slab"] = vm.Slab
+		fields["sreclaimable"] = vm.Sreclaimable
+		fields["sunreclaim"] = vm.Sunreclaim
+		fields["swap_cached"] = vm.SwapCached
+		fields["swap_free"] = vm.SwapFree
+		fields["swap_total"] = vm.SwapTotal
+		fields["vmalloc_chunk"] = vm.VmallocChunk
+		fields["vmalloc_total"] = vm.VmallocTotal
+		fields["vmalloc_used"] = vm.VmallocUsed
+		fields["write_back_tmp"] = vm.WriteBackTmp
+		fields["write_back"] = vm.WriteBack
+	}
+
+	acc.AddGauge("mem", fields, nil)
+
+	return nil
+}
+
+func init() {
+	ps := psutil.NewSystemPS()
+	inputs.Add("mem", func() telegraf.Input {
+		return &Mem{ps: ps}
+	})
+}