resource

type CPUSummary struct {
	User, System, Iowait, Steal, Irq MinMaxAvg
	Busy                             MinMaxAvg
}

type CPUTimes struct {
	User, Nice, System, Idle, Iowait, Irq, SoftIrq, Steal uint64
}

type DiskStat struct {
	ReadSectors  uint64
	WriteSectors uint64
	IoMs         uint64
}

type DiskSummary struct {
	Name      string
	ReadKBps  MinMaxAvg
	WriteKBps MinMaxAvg
	UtilPct   MinMaxAvg
}

type MemSummary struct {
	TotalKB  uint64
	UsedKB   MinMaxAvg // MemTotal - MemAvailable
	SwapUsed MinMaxAvg
}

type MinMaxAvg struct {
	Min, Max, Avg float64
	// contains filtered or unexported fields
}

type Process struct {
	Pid     int
	Command string
	CPU     uint64 // utime + stime（累積 jiffies）
	RssKB   uint64
}

type ProcessSummary struct {
	Pid     int
	Command string
	CPU     MinMaxAvg
	RssKB   MinMaxAvg
}

type Processor struct {
	// TopN は要約に出すプロセスの件数。0 なら DefaultTopN。
	TopN int
}

type Report struct {
	Host       string
	StartedAt  time.Time
	FinishedAt time.Time
	IntervalMs int64
	Samples    []Sample
}

type Sample struct {
	At             time.Time
	CPU            CPUTimes
	NumCPU         int
	Load1          float64
	MemTotalKB     uint64
	MemAvailableKB uint64
	SwapTotalKB    uint64
	SwapFreeKB     uint64
	Disks          map[string]DiskStat
	Processes      []Process
}

type Summary struct {
	Host       string
	StartedAt  time.Time
	FinishedAt time.Time
	NumCPU     int
	Samples    int

	CPU  CPUSummary
	Load MinMaxAvg
	Mem  MemSummary

	Disks     []DiskSummary
	Processes []ProcessSummary
}