// Fetch fetches memory metrics from the OS.
func (m *MetricSet) Fetch(host string) (event common.MapStr, err error) {
memStat, err := system.GetMemory()
if err != nil {
return nil, errors.Wrap(err, "memory")
}
system.AddMemPercentage(memStat)
swapStat, err := system.GetSwap()
if err != nil {
return nil, errors.Wrap(err, "swap")
}
system.AddSwapPercentage(swapStat)
return common.MapStr{
"mem": system.GetMemoryEvent(memStat),
"swap": system.GetSwapEvent(swapStat),
}, nil
}
// Fetch fetches memory metrics from the OS.
func (m *MetricSet) Fetch() (event common.MapStr, err error) {
memStat, err := system.GetMemory()
if err != nil {
return nil, errors.Wrap(err, "memory")
}
system.AddMemPercentage(memStat)
swapStat, err := system.GetSwap()
if err != nil {
return nil, errors.Wrap(err, "swap")
}
system.AddSwapPercentage(swapStat)
memory := common.MapStr{
"total": memStat.Total,
"used": common.MapStr{
"bytes": memStat.Used,
"pct": memStat.UsedPercent,
},
"free": memStat.Free,
"actual": common.MapStr{
"free": memStat.ActualFree,
"used": common.MapStr{
"pct": memStat.ActualUsedPercent,
"bytes": memStat.ActualUsed,
},
},
}
swap := common.MapStr{
"total": swapStat.Total,
"used": common.MapStr{
"bytes": swapStat.Used,
"pct": swapStat.UsedPercent,
},
"free": swapStat.Free,
}
memory["swap"] = swap
return memory, nil
}