categraf/inputs/mem/mem.go

106 lines
2.9 KiB
Go

package mem
import (
"log"
"runtime"
"flashcat.cloud/categraf/config"
"flashcat.cloud/categraf/inputs"
"flashcat.cloud/categraf/inputs/system"
"flashcat.cloud/categraf/types"
)
const inputName = "mem"
type MemStats struct {
ps system.PS
config.PluginConfig
CollectPlatformFields bool `toml:"collect_platform_fields"`
}
func init() {
ps := system.NewSystemPS()
inputs.Add(inputName, func() inputs.Input {
return &MemStats{
ps: ps,
}
})
}
func (s *MemStats) Init() error { return nil }
func (s *MemStats) Drop() {}
func (s *MemStats) GetInstances() []inputs.Instance { return nil }
func (s *MemStats) Gather(slist *types.SampleList) {
vm, err := s.ps.VMStat()
if err != nil {
log.Println("E! failed to get vmstat:", err)
return
}
fields := map[string]interface{}{
"total": vm.Total, // bytes
"available": vm.Available, // bytes
"used": vm.Used, // bytes
"used_percent": 100 * float64(vm.Used) / float64(vm.Total),
"available_percent": 100 * float64(vm.Available) / float64(vm.Total),
}
if s.CollectPlatformFields {
switch runtime.GOOS {
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
}
}
slist.PushSamples(inputName, fields)
}