syncthing/gui_unix.go
2014-01-10 15:32:30 +01:00

32 lines
627 B
Go

//+build !windows,!solaris
package main
import (
"syscall"
"time"
)
func init() {
go trackCPUUsage()
}
func trackCPUUsage() {
var prevUsage int64
var prevTime = time.Now().UnixNano()
var rusage syscall.Rusage
for {
time.Sleep(10 * time.Second)
syscall.Getrusage(syscall.RUSAGE_SELF, &rusage)
curTime := time.Now().UnixNano()
timeDiff := curTime - prevTime
curUsage := rusage.Utime.Nano() + rusage.Stime.Nano()
usageDiff := curUsage - prevUsage
cpuUsageLock.Lock()
cpuUsagePercent = 100 * float64(usageDiff) / float64(timeDiff)
cpuUsageLock.Unlock()
prevTime = curTime
prevUsage = curUsage
}
}