func (s *stats) GatherStats(percent bool) {
s.SysUptime = systemstat.GetUptime()
s.ProcUptime = time.Since(s.startTime).Seconds()
s.SysMemK = systemstat.GetMemSample()
s.LoadAverage = systemstat.GetLoadAvgSample()
s.LastCPUSample = s.CurCPUSample
s.CurCPUSample = systemstat.GetCPUSample()
if s.sysCPUSampled { // we need 2 samples to get an average
s.SysCPUAvg = systemstat.GetCPUAverage(s.LastCPUSample, s.CurCPUSample)
}
// we have at least one sample, subsequent rounds will give us an average
s.sysCPUSampled = true
s.ProcMemUsedPct = 100 * float64(s.CurProcCPUSample.ProcMemUsedK) / float64(s.SysMemK.MemTotal)
s.LastProcCPUSample = s.CurProcCPUSample
s.CurProcCPUSample = systemstat.GetProcCPUSample()
if s.procCPUSampled {
s.ProcCPUAvg = systemstat.GetProcCPUAverage(s.LastProcCPUSample, s.CurProcCPUSample, s.ProcUptime)
}
s.procCPUSampled = true
}
func main() {
flag.Parse()
// convert millicores to percentage
millicoresPct := float64(*millicores) / float64(10)
duration := time.Duration(*durationSec) * time.Second
start := time.Now()
first := systemstat.GetProcCPUSample()
for time.Now().Sub(start) < duration {
cpu := systemstat.GetProcCPUAverage(first, systemstat.GetProcCPUSample(), systemstat.GetUptime().Uptime)
if cpu.TotalPct < millicoresPct {
doSomething()
} else {
time.Sleep(sleep)
}
}
}