package tool

import "github.com/containerd/nydus-snapshotter/pkg/metrics/tool"

Index ¶

• Variables
• func CalculateCPUUtilization(begin *Stat, now *Stat) (float64, error)
• func FormatFloat64(f float64, point int) float64
• func GetClkTck() float64
• func GetPageSize() float64
• func GetProcessMemoryRSSKiloBytes(pid int) (float64, error)
• func GetProcessRunningState(pid int) (string, error)
• func IsZombieProcess(pid int) (bool, error)
• func ParseFloat64(val string) float64
• type Stat
• func GetProcessStat(pid int) (*Stat, error)

Variables ¶

var (
	ClkTck   = GetClkTck()
	PageSize = GetPageSize()
)

Functions ¶

func CalculateCPUUtilization ¶

func CalculateCPUUtilization(begin *Stat, now *Stat) (float64, error)

func FormatFloat64 ¶

func FormatFloat64(f float64, point int) float64

func GetClkTck ¶

func GetClkTck() float64

func GetPageSize ¶

func GetPageSize() float64

func GetProcessMemoryRSSKiloBytes ¶

func GetProcessMemoryRSSKiloBytes(pid int) (float64, error)

func GetProcessRunningState ¶

func GetProcessRunningState(pid int) (string, error)

func IsZombieProcess ¶

func IsZombieProcess(pid int) (bool, error)

func ParseFloat64 ¶

func ParseFloat64(val string) float64

FIXME: return error

Types ¶

type Stat ¶

type Stat struct {
	Utime  float64
	Stime  float64
	Cutime float64
	Cstime float64
	Thread float64
	Start  float64
	Rss    float64
	Fds    float64
	Uptime float64
}

Please refer to https://man7.org/linux/man-pages/man5/proc.5.html for the metrics meanings

func GetProcessStat ¶

func GetProcessStat(pid int) (*Stat, error)

Source Files ¶

common.go stat.go