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))
}
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)
}
}
// 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))
}
func (fs *FileSystem) writeHtml(writer io.Writer) {
fmt.Fprintf(writer, "Scanned: %s<br>\n",
fsrateio.FormatBytes(fs.TotalDataBytes))
}
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)
}
}
func writeNamedStat(writer io.Writer, name string, value uint64) {
fmt.Fprintf(writer, " %s=%s\n", name, fsrateio.FormatBytes(value))
}