serveError(w, http.StatusInternalServerError,
			fmt.Sprintf("Could not enable CPU profiling: %s", err))
		return
	}
	sleep(r, time.Duration(sec)*time.Second)
	pprof.StopCPUProfile()
}

// Trace responds with the execution trace in binary form.
// Tracing lasts for duration specified in seconds GET parameter, or for 1 second if not specified.

		if err != nil {
			s.AddReport(fmt.Errorf("creating cpu profile: %s", err))
			return
		}
		defer func() {
			f.Close()
			<-fdSem
		}()
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	initParserMode()
	initRewrite()

	args := flag.Args()
	if len(args) == 0 {
		if *write {
			s.AddReport(fmt.Errorf("error: cannot use -w with standard input"))
			return
		}

		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatalf("%v", err)
		}
		if err := pprof.StartCPUProfile(f); err != nil {
			log.Fatalf("%v", err)
		}
		AtExit(func() {
			pprof.StopCPUProfile()
			if err = f.Close(); err != nil {
				log.Fatalf("error closing cpu profile: %v", err)
			}
		})
	}
	if *memprofile != "" {
		if *memprofilerate != 0 {

			log.Fatal("could not create CPU profile: ", err)
		}
		defer f.Close()
		if err := pprof.StartCPUProfile(f); err != nil {
			log.Fatal("could not start CPU profile: ", err)
		}
		defer pprof.StopCPUProfile()
	}
	if *tracefile != "" {
		f, err := os.Create(*tracefile)
		if err != nil {
			log.Fatalf("failed to create trace output file: %v", err)
		}
		defer func() {
			if err := f.Close(); err != nil {

func (f matchStringOnly) MatchString(pat, str string) (bool, error)   { return f(pat, str) }
func (f matchStringOnly) StartCPUProfile(w io.Writer) error           { return errMain }
func (f matchStringOnly) StopCPUProfile()                             {}
func (f matchStringOnly) WriteProfileTo(string, io.Writer, int) error { return errMain }
func (f matchStringOnly) ImportPath() string                          { return "" }

		f, err := Create(fn)
		if err != nil {
			return nil, err
		}
		err = pprof.StartCPUProfile(f)
		if err != nil {
			return nil, err
		}
		prof.stopFn = func() ([]byte, error) {
			pprof.StopCPUProfile()
			err := f.Close()
			if err != nil {
				return nil, err
			}
			defer RemoveAll(dirPath)
			return ioutilx.ReadFile(fn)
		}
	case madmin.ProfilerCPUIO:

		{"Labels", Func, 9},
		{"Lookup", Func, 0},
		{"NewProfile", Func, 0},
		{"Profile", Type, 0},
		{"Profiles", Func, 0},
		{"SetGoroutineLabels", Func, 9},
		{"StartCPUProfile", Func, 0},
		{"StopCPUProfile", Func, 0},
		{"WithLabels", Func, 9},
		{"WriteHeapProfile", Func, 0},
	},
	"runtime/trace": {
		{"(*Region).End", Method, 11},
		{"(*Task).End", Method, 11},
		{"IsEnabled", Func, 11},

pkg runtime/pprof, func NewProfile(string) *Profile
pkg runtime/pprof, func Profiles() []*Profile
pkg runtime/pprof, func StartCPUProfile(io.Writer) error
pkg runtime/pprof, func StopCPUProfile()
pkg runtime/pprof, func WriteHeapProfile(io.Writer) error
pkg runtime/pprof, method (*Profile) Add(interface{}, int)
pkg runtime/pprof, method (*Profile) Count() int