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#!/usr/bin/python
# -*- coding: utf8 -*-
# author:
# date: 2015-09-15
# see license for license details
import subprocess
import signal
import os
import time
import logging
import vstf.common.decorator as deco
import vstf.agent.perf.utils as utils
from vstf.common.utils import kill_by_name
LOG = logging.getLogger(__name__)
class Iperf(object):
def __init__(self):
self._send_processes = []
self._receive_processes = []
self._typemap = {
"tcp_bw": "",
"udp_bw": " -u ",
}
@deco.check("protocol", choices=['tcp_bw', 'udp_bw'])
@deco.check("namespace", defaults=None)
@deco.check("dst")
@deco.check("time", defaults=600)
@deco.check("size", defaults=64)
@deco.check("threads", defaults=1)
def send_start(self, **kwargs):
cmd = self.format_send_start(**kwargs)
LOG.debug("cmd:%s", cmd)
process = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
time.sleep(1)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start iperf send success"
self._send_processes.append(process)
else:
print ret
error_str = "start iperf send failed, %s", (str(kwargs))
return ret, error_str
@deco.namespace()
def format_send_start(self, **kwargs):
cmd = "iperf %(type)s -c %(dst_ip)s -i 1 -l %(pkt_size)s -t %(time)s -P %(threads)s "
context = {
'type': self._typemap[kwargs['protocol']],
'dst_ip': kwargs['dst'][0]['ip'],
'time': kwargs['time'],
'pkt_size': kwargs['size'],
'threads': kwargs['threads'],
}
cmd = cmd % context
return cmd
def send_stop(self):
results = []
for process in self._send_processes:
poll = process.poll()
if poll is None:
process.kill()
ret = 0
read = "process is stopped by killed"
results.append((ret, read))
self._send_processes = []
return results
@deco.namespace()
def format_receive_start(self, **kwargs):
cmd = 'iperf %s -s ' % (self._typemap[kwargs['protocol']])
return cmd
@deco.check("protocol", choices=['tcp_bw', 'udp_bw'])
@deco.check("namespace", defaults=None)
def receive_start(self, **kwargs):
cmd = self.format_receive_start(**kwargs)
LOG.debug("cmd:%s", cmd)
process = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
time.sleep(1)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start iperf receive success"
self._receive_processes.append(process)
else:
print ret
error_str = "start iperf receive failed, %s" % (str(kwargs))
return ret, error_str
def receive_stop(self):
ret = 0
for process in self._receive_processes:
process.kill()
ret = process.wait()
self._receive_processes = []
return ret
def receive_kill(self):
ret = 0
receive_pids = utils.get_pid_by_name('iperf')
for pid in receive_pids:
os.kill(pid, signal.SIGKILL)
time.sleep(0.5)
error_str = "stop iperf receive success"
LOG.debug(error_str)
return ret, error_str
def force_clean(self):
LOG.info("%s %s start", self.__class__, self.force_clean.__name__)
kill_by_name('iperf')
self._send_processes = []
self._receive_processes = []
return True
def unit_test():
perf = Iperf()
pro = 'udp_bw'
print perf.receive_start(namespace='receive', protocol=pro)
send = {
"namespace": "send",
"protocol": "udp_bw",
"dst": [
{"ip": "192.168.1.102"}
],
"size": 64,
"time": 5,
}
print perf.send_start(**send)
time.sleep(10)
print perf.send_stop()
print perf.receive_stop()
if __name__ == "__main__":
from vstf.common.log import setup_logging
setup_logging(level=logging.DEBUG, log_file="/var/log/vstf-iperf.log", clevel=logging.DEBUG)
unit_test()
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