Exemplo n.º 1
0
func (fs *FileSystem) String() string {
	return fmt.Sprintf("Tree: %d inodes, total file size: %s, number of hashes: %d\nObjectCache: %d objects\n",
		len(fs.RegularInodeTable)+len(fs.SymlinkInodeTable)+len(fs.InodeTable)+
			len(fs.DirectoryInodeList),
		fsrateio.FormatBytes(fs.TotalDataBytes),
		fs.HashCount,
		len(fs.ObjectCache))
}
Exemplo n.º 2
0
func (fsh *FileSystemHistory) writeHtml(writer io.Writer) {
	fmt.Fprintf(writer, "Scan count: %d<br>\n", fsh.scanCount)
	fmt.Fprintf(writer, "Generation count: %d<br>\n", fsh.generationCount)
	if fsh.scanCount > 0 {
		fmt.Fprintf(writer, "Last scan completed: %s<br>\n", fsh.timeOfLastScan)
		fmt.Fprintf(writer, "Duration of last scan: %s<br>\n",
			fsh.durationOfLastScan)
		fsh.fileSystem.WriteHtml(writer)
		tmp := fsrateio.FormatBytes(uint64(float64(
			fsh.fileSystem.TotalDataBytes) / fsh.durationOfLastScan.Seconds()))
		fmt.Fprintf(writer, "Scan rate: %s/s<br>\n", tmp)
	}
	fmt.Fprintf(writer, "Duration of current scan: %s<br>\n",
		time.Since(fsh.timeOfLastScan))
	if fsh.generationCount > 0 {
		fmt.Fprintf(writer, "Last change: %s<br>\n", fsh.timeOfLastChange)
	}
}
Exemplo n.º 3
0
// Benchmark the read speed of the underlying block device for a given file.
func main() {
	pathname := "/"
	if len(os.Args) == 2 {
		pathname = os.Args[1]
	}
	bytesPerSecond, blocksPerSecond, err := fsbench.GetReadSpeed(pathname)
	if err != nil {
		fmt.Printf("Error! %s\n", err)
		return
	}
	ctx := fsrateio.NewContext(bytesPerSecond, blocksPerSecond)
	fmt.Println(ctx)
	var file *os.File
	file, err = os.Open(pathname)
	if err != nil {
		fmt.Printf("Error! %s\n", err)
		return
	}
	rd := bufio.NewReader(fsrateio.NewReader(file, ctx))
	buffer := make([]byte, 65536)
	timeStart := time.Now()
	tread := 0
	for {
		n := 0
		n, err = rd.Read(buffer)
		if n < 1 && err == io.EOF {
			break
		}
		if err != nil {
			fmt.Printf("Error! %s\n", err)
			return
		}
		tread += n
	}
	bytesPerSecond = uint64(float64(tread) / time.Since(timeStart).Seconds())
	fmt.Printf("%s/s\n", fsrateio.FormatBytes(bytesPerSecond))
}
Exemplo n.º 4
0
func (fs *FileSystem) writeHtml(writer io.Writer) {
	fmt.Fprintf(writer, "Scanned: %s<br>\n",
		fsrateio.FormatBytes(fs.TotalDataBytes))
}
Exemplo n.º 5
0
func main() {
	flag.Parse()
	var err error
	bytesPerSecond, blocksPerSecond, err := fsbench.GetReadSpeed(*rootDir)
	if err != nil {
		fmt.Printf("Error! %s\n", err)
		return
	}
	ctx := fsrateio.NewContext(bytesPerSecond, blocksPerSecond)
	if *scanSpeed != 0 {
		ctx.SetSpeedPercent(*scanSpeed)
	}
	fmt.Println(ctx)
	syscall.Setpriority(syscall.PRIO_PROCESS, 0, 10)
	var prev_fs *scanner.FileSystem
	sleepDuration, _ := time.ParseDuration(fmt.Sprintf("%ds", *interval))
	for iter := 0; *numScans < 0 || iter < *numScans; iter++ {
		timeStart := time.Now()
		fs, err := scanner.ScanFileSystem(*rootDir, *objectCache, ctx)
		timeStop := time.Now()
		if iter > 0 {
			fmt.Println()
		}
		if err != nil {
			fmt.Printf("Error! %s\n", err)
			return
		}
		fmt.Print(fs)
		fmt.Printf("Total scanned: %s,\t",
			fsrateio.FormatBytes(fs.TotalDataBytes))
		bytesPerSecond := uint64(float64(fs.TotalDataBytes) /
			timeStop.Sub(timeStart).Seconds())
		fmt.Printf("%s/s\n", fsrateio.FormatBytes(bytesPerSecond))
		if prev_fs != nil {
			if !scanner.Compare(prev_fs, fs, os.Stdout) {
				fmt.Println("Scan results different from last run")
			}
		}
		runtime.GC() // Clean up before showing memory statistics.
		memstats.WriteMemoryStats(os.Stdout)
		if *debugFile != "" {
			file, err := os.Create(*debugFile)
			if err != nil {
				fmt.Printf("Error! %s\n", err)
				return
			}
			w := bufio.NewWriter(file)
			fs.DebugWrite(w, "")
			w.Flush()
			file.Close()
		}
		if *rpcFile != "" {
			file, err := os.Create(*rpcFile)
			if err != nil {
				fmt.Printf("Error creating: %s\t%s\n", *rpcFile, err)
				os.Exit(1)
			}
			encoder := gob.NewEncoder(file)
			encoder.Encode(fs)
			file.Close()
		}
		prev_fs = fs
		time.Sleep(sleepDuration)
	}
}
Exemplo n.º 6
0
func writeNamedStat(writer io.Writer, name string, value uint64) {
	fmt.Fprintf(writer, "  %s=%s\n", name, fsrateio.FormatBytes(value))
}