func showDiskStat(buffer *bytes.Buffer, prev_rec *ss.StatRecord, cur_rec *ss.StatRecord) error {
dusage, err := ss.GetDiskUsage(
prev_rec.Time, prev_rec.Disk,
cur_rec.Time, cur_rec.Disk)
if err != nil {
return err
}
buffer.WriteString(`,"disk":`)
dusage.WriteJsonTo(buffer)
return nil
}
func main() {
opt := parseArgs()
var in *os.File
f, err := os.Open(opt.PerfmongerFile)
if err != nil {
panic(err)
}
in = f
defer f.Close()
dec := gob.NewDecoder(bufio.NewReader(in))
var cheader ss.CommonHeader
var pheader ss.PlatformHeader
var records = make([]ss.StatRecord, 2)
curr := 0
err = dec.Decode(&cheader)
if err == io.EOF {
return
}
if err != nil {
panic(err)
}
err = dec.Decode(&pheader)
if err == io.EOF {
return
}
if err != nil {
panic(err)
}
// read first record
err = dec.Decode(&records[curr])
if err == io.EOF {
return
} else if err != nil {
panic(err)
}
t0 := records[curr].Time
curr ^= 1
meta_set := false
meta := PlotMeta{}
meta.StartTime = float64(records[0].Time.UnixNano()) / 1.0e9
disk_dat_files := map[string]*DiskDatTmpFile{}
cpu_dat_files := make([]*CpuDatTmpFile, records[0].Cpu.NumCore)
meta.Cpu.NumCore = records[0].Cpu.NumCore
f, err = os.Create(opt.CpuFile)
if err != nil {
panic(err)
}
defer f.Close()
cpu_writer := bufio.NewWriter(f)
cpu_writer.WriteString("# All cpu usage\n")
cpu_writer.WriteString("# elapsed_time %usr %nice %sys %iowait %hardirq %softirq %steal %guest %idle\n")
for {
prev_rec := &records[curr^1]
cur_rec := &records[curr]
err := dec.Decode(cur_rec)
if err == io.EOF {
break
} else if err != nil {
panic(err)
}
// Disk usage
dusage, err := ss.GetDiskUsage(prev_rec.Time, prev_rec.Disk, cur_rec.Time, cur_rec.Disk)
if err != nil {
panic(err)
}
didx := 0
var dnames []string
for dname, _ := range *dusage {
if dname != "total" {
dnames = append(dnames, dname)
}
}
sort.Strings(dnames)
dnames = append(dnames, "total")
// for dname, dusage_entry := range *dusage {
for _, dname := range dnames {
dusage_entry, ok := (*dusage)[dname]
if !ok {
panic("device '" + dname + "' not found")
}
if !meta_set {
meta.Disk.Devices =
append(meta.Disk.Devices,
DiskMetaEntry{Name: dname, Idx: didx})
}
disk_dat, ok := disk_dat_files[dname]
if !ok {
disk_dat = makeDiskDatTmpFile(dname, didx)
disk_dat_files[dname] = disk_dat
defer disk_dat.File.Close()
disk_dat.Writer.WriteString("\n\n\n")
disk_dat.Writer.WriteString("# device: " + disk_dat.Name + "\n")
disk_dat.Writer.WriteString(fmt.Sprintln(
"# elapsed_time r_iops w_iops r_MB/s w_MB/s r_latency w_latency r_avgsz w_avgsz qdepth"))
}
elapsed_time := prev_rec.Time.Sub(t0).Seconds()
disk_dat.Writer.WriteString(
fmt.Sprintf("%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\n",
elapsed_time,
dusage_entry.RdIops,
dusage_entry.WrIops,
dusage_entry.RdSecps*512.0/1024.0/1024.0,
dusage_entry.WrSecps*512.0/1024.0/1024.0,
dusage_entry.RdLatency,
dusage_entry.WrLatency,
dusage_entry.AvgRdSize,
dusage_entry.AvgWrSize,
dusage_entry.ReqQlen))
didx += 1
}
// Cpu usage
cusage, err := ss.GetCpuUsage(prev_rec.Cpu, cur_rec.Cpu)
if err != nil {
panic(err)
}
for coreid, coreusage := range cusage.CoreUsages {
cpu_dat := cpu_dat_files[coreid]
if cpu_dat == nil {
cpu_dat = makeCpuDatTmpFile(coreid)
cpu_dat_files[coreid] = cpu_dat
defer cpu_dat.File.Close()
cpu_dat.Writer.WriteString(fmt.Sprintf("\n\n\n# core: %d\n", coreid))
cpu_dat.Writer.WriteString("# elapsed_time %usr %nice %sys %iowait %hardirq %softirq %steal %guest %idle\n")
}
printCoreUsage(cpu_dat.Writer, prev_rec.Time.Sub(t0).Seconds(), coreusage)
}
printCoreUsage(cpu_writer, prev_rec.Time.Sub(t0).Seconds(), cusage.All)
curr ^= 1
meta_set = true
}
meta.EndTime = float64(records[curr^1].Time.UnixNano()) / 1.0e9
for _, disk_dat := range disk_dat_files {
disk_dat.Writer.Flush()
disk_dat.File.Close()
}
f, err = os.Create(opt.DiskFile)
if err != nil {
panic(err)
}
defer f.Close()
df_writer := bufio.NewWriter(f)
for _, dev := range meta.Disk.Devices {
disk_dat, ok := disk_dat_files[dev.Name]
if !ok {
panic(dev.Name)
}
content, err := ioutil.ReadFile(disk_dat.Path)
if err != nil {
panic(err)
}
df_writer.Write(content)
os.Remove(disk_dat.Path)
}
df_writer.Flush()
for _, cpu_dat := range cpu_dat_files {
cpu_dat.Writer.Flush()
cpu_dat.File.Close()
content, err := ioutil.ReadFile(cpu_dat.Path)
if err != nil {
panic(err)
}
cpu_writer.Write(content)
os.Remove(cpu_dat.Path)
}
cpu_writer.Flush()
json_enc := json.NewEncoder(os.Stdout)
json_enc.Encode(meta)
}
func main() {
var cheader ss.CommonHeader
var pheader ss.PlatformHeader
parseArgs()
f, err := os.Open(option.logfile)
if err != nil {
panic(err)
}
dec := gob.NewDecoder(f)
err = dec.Decode(&cheader)
if err == io.EOF {
return
}
if err != nil {
panic(err)
}
err = dec.Decode(&pheader)
if err == io.EOF {
return
}
if err != nil {
panic(err)
}
var fst_record ss.StatRecord
// read first record
err = dec.Decode(&fst_record)
if err == io.EOF {
return
} else if err != nil {
panic(err)
}
// loop until last line
var lst_records [2]ss.StatRecord
idx := 0
for {
err = dec.Decode(&lst_records[idx])
if err == io.EOF {
idx ^= 1
break
} else if err != nil {
panic(err)
}
idx ^= 1
}
lst_record := lst_records[idx]
var cpu_usage *ss.CpuUsage = nil
var disk_usage *ss.DiskUsage = nil
var net_usage *ss.NetUsage = nil
if fst_record.Cpu != nil && lst_record.Cpu != nil {
cpu_usage, err = ss.GetCpuUsage(fst_record.Cpu, lst_record.Cpu)
}
if fst_record.Disk != nil && lst_record.Disk != nil {
disk_usage, err = ss.GetDiskUsage(
fst_record.Time, fst_record.Disk,
lst_record.Time, lst_record.Disk)
}
if fst_record.Disk != nil && lst_record.Disk != nil {
net_usage, err = ss.GetNetUsage(
fst_record.Time, fst_record.Net,
lst_record.Time, lst_record.Net)
}
interval := lst_record.Time.Sub(fst_record.Time)
if option.json {
buf := bytes.NewBuffer([]byte{})
buf.WriteString(fmt.Sprintf(`{"exectime":%.3f`, interval.Seconds()))
if cpu_usage != nil {
buf.WriteString(`,"cpu":`)
cpu_usage.WriteJsonTo(buf)
}
if disk_usage != nil {
buf.WriteString(`,"disk":`)
disk_usage.WriteJsonTo(buf)
}
if disk_usage != nil {
buf.WriteString(`,"net":`)
net_usage.WriteJsonTo(buf)
}
buf.WriteByte('}')
fmt.Println(buf.String())
} else {
if option.title == "" {
fmt.Println("== performance summary ==")
} else {
fmt.Printf("== performance summary of '%s' ==\n", option.title)
}
fmt.Printf(`
Duration: %.3f sec
`,
interval.Seconds())
if cpu_usage != nil {
fmt.Printf(`* Average CPU usage (MAX: %d %%)
* Non-idle usage: %.2f %%
%%usr: %.2f %%
%%sys: %.2f %%
%%irq: %.2f %%
%%soft: %.2f %%
%%other: %.2f %%
* Idle usage: %.2f %%
%%iowait: %.2f %%
%%idle: %.2f %%
`,
100*cpu_usage.NumCore,
100.0*float64(cpu_usage.NumCore)-cpu_usage.All.Idle-cpu_usage.All.Iowait,
cpu_usage.All.User+cpu_usage.All.Nice,
cpu_usage.All.Sys,
cpu_usage.All.Hardirq,
cpu_usage.All.Softirq,
cpu_usage.All.Steal,
cpu_usage.All.Idle+cpu_usage.All.Iowait,
cpu_usage.All.Iowait, cpu_usage.All.Idle)
}
if disk_usage != nil {
devices := []string{}
for device, _ := range *disk_usage {
if device != "total" {
devices = append(devices, device)
}
}
sort.Strings(devices)
if len(devices) > 1 {
devices = append(devices, "total")
}
for _, device := range devices {
e := (*disk_usage)[device]
fmt.Printf(`* Average DEVICE usage: %s
read IOPS: %.2f
write IOPS: %.2f
read throughput: %.2f MB/s
write throughput: %.2f MB/s
read latency: %.1f usec
write latency: %.1f usec
read amount: %.2f MB
write amount: %.2f MB
`,
device,
e.RdIops, e.WrIops,
e.RdSecps*512.0/1024.0/1024.0, e.WrSecps*512.0/1024.0/1024.0,
e.RdLatency*1000.0, e.WrLatency*1000.0,
float64(e.RdSectors*512)/1024.0/1024.0,
float64(e.WrSectors*512)/1024.0/1024.0)
}
}
}
}