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
}
// This example shows how easy it is to get memory information
func Example_simple() {
sample = systemstat.GetMemSample()
fmt.Println("Total available RAM in kb:", sample.MemTotal, "k total")
fmt.Println("Used RAM in kb:", sample.MemUsed, "k used")
fmt.Println("Free RAM in kb:", sample.MemFree, "k free")
fmt.Printf("The output is similar to, but somewhat different than:\n\ttop -n1 | grep Mem:\n")
}
func getSystemMonitorSample() MonitorSample {
cpuSample := systemstat.GetCPUSample()
idle := float64(cpuSample.Idle)
total := float64(cpuSample.Total)
memSample := systemstat.GetMemSample()
var stat MonitorSample
stat.Name = "system"
stat.CpuPct = (total - idle) * 100.0 / total
stat.MemTotal = memSample.MemTotal
stat.MemUsed = memSample.MemUsed
return stat
}