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#!/usr/bin/env python
# Copyright (C) 2015-2016 Red Hat, Inc. <http://www.redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import os
import argparse
import fileinput
import re
import subprocess
import time
def generate_workload_using_fio(root_dirname, ini_file):
"""
Populates data in the given directory using fio tool.
Args:
root_dirname (str): Directory name
ini_file (str): fio job file
Example:
generate_workload_using_fio("/tmp", 'job1.ini')
"""
dirpath_list = [x[0] for x in (os.walk(root_dirname))]
for dirpath in dirpath_list:
fname = "[" + dirpath + "/fio_" + os.path.basename(ini_file) + "]"
for line in fileinput.input(ini_file, inplace=True):
line = re.sub(r'\[.*\]', fname, line.rstrip())
print(line)
fio_cmd = "fio " + ini_file
subprocess.call(fio_cmd, shell=True)
if __name__ == "__main__":
# Note: Make sure fio tool is installed in the node
# Please refer below link for installing fio.
# http://git.kernel.dk/?p=fio.git;a=blob;f=README;
# h=5fa37f3eed33a15a15a38836cf0080edc81688fd;hb=HEAD
parser = argparse.ArgumentParser(prog="test_fio.py",
description=("Generate workload "
"using fio"))
parser.add_argument(
'dir', metavar='DIR', type=str,
help="Directory on which IO has to be performed")
parser.add_argument('--job-files',
metavar=('job_files'), dest='job_files',
help="space separated absolute paths of "
"ini job files", required=True)
args = parser.parse_args()
root_dirname = args.dir
ini_files_list = args.job_files.split()
for ini_file in ini_files_list:
generate_workload_using_fio(root_dirname, ini_file)
time.sleep(2)
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