一，工具简介

dirtop按目录显示读取和写入情况.

二，代码示例

#!/usr/bin/env pythonfrom __future__ import print_function
from bcc import BPF
from time import sleep, strftime
import argparse
import os
import stat
from subprocess import call# arguments
examples = """examples:./dirtop -d '/hdfs/uuid/*/yarn'       # directory I/O top, 1 second refresh./dirtop -d '/hdfs/uuid/*/yarn' -C    # don't clear the screen./dirtop -d '/hdfs/uuid/*/yarn' 5     # 5 second summaries./dirtop -d '/hdfs/uuid/*/yarn' 5 10  # 5 second summaries, 10 times only./dirtop -d '/hdfs/uuid/*/yarn,/hdfs/uuid/*/data' # Running dirtop on two set of directories
"""
parser = argparse.ArgumentParser(description="File reads and writes by process",formatter_class=argparse.RawDescriptionHelpFormatter,epilog=examples)
parser.add_argument("-C", "--nocl