ui.Print(fmt.Sprintf(
		"Converting %s to a profile.proto... (May take a few minutes)",
		perfPath))
	profile, err := newTempFile(os.TempDir(), "pprof_", ".pb.gz")
	if err != nil {
		return nil, err
	}
	deferDeleteTempFile(profile.Name())
	cmd := exec.Command("perf_to_profile", "-i", perfPath, "-o", profile.Name(), "-f")
	cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
	if err := cmd.Run(); err != nil {
		profile.Close()