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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import subprocess
import time
import logging
import vstf.common.decorator as deco
from vstf.common import perfmark as mark
from vstf.common.utils import kill_by_name, my_popen
LOG = logging.getLogger(__name__)
class Qperf(object):
def __init__(self):
self._send_processes = []
self._receive_processes = []
@deco.check("protocol", choices=['tcp_lat', 'udp_lat'])
@deco.check("namespace", defaults=None)
@deco.check("dst")
@deco.check("time", defaults=10)
@deco.check("size", defaults=64)
def send_start(self, **kwargs):
cmd = self.format_send_start(**kwargs)
LOG.info("cmd:%s", cmd)
process = my_popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
time.sleep(0.5)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start qperf send success"
self._send_processes.append(process)
else:
print ret
error_str = "start qperf send failed, %s" % (str(kwargs))
process.wait()
return ret, error_str
@deco.namespace()
def format_send_start(self, **kwargs):
cmd = "qperf %(dst_ip)s -t %(time)s -m %(pkt_size)s -vu %(type)s "
context = {
'dst_ip': kwargs['dst'][0]['ip'],
'type': kwargs['protocol'],
'time': kwargs['time'],
'pkt_size': kwargs['size'],
}
cmd = cmd % context
return cmd
def send_stop(self, **kwargs):
results = []
for process in self._send_processes:
process.wait()
read = process.stdout.read()
read = self._parse_data(read)
ret = 0
results.append((ret, read))
self._send_processes = []
return results
@deco.namespace()
def format_receive_start(self, **kwargs):
cmd = 'qperf'
return cmd
def receive_start(self, **kwargs):
cmd = self.format_receive_start(**kwargs)
LOG.info("cmd:%s", cmd)
process = my_popen(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
time.sleep(0.5)
ret = process.poll()
if ret is None:
ret = 0
error_str = "start qperf receive success"
self._receive_processes.append(process)
else:
print ret
error_str = "start qperf receive failed, %s" % (str(kwargs))
process.wait()
raise Exception(error_str)
return ret, error_str
def receive_stop(self, **kwargs):
ret = 0
for process in self._receive_processes:
process.kill()
process.wait()
self._receive_processes = []
error_str = "stop qperf receive success"
return ret, error_str
def receive_kill(self):
kill_by_name('qperf')
self._receive_processes = []
return True
def clean(self):
for process in self._receive_processes:
process.kill()
process.wait()
LOG.info("process.kill(qperf daemon:%s)", process.pid)
for process in self._send_processes:
LOG.info("process.wait(qperf client:%s)", process.pid)
process.wait()
self._receive_processes = []
self._send_processes = []
return True
def force_clean(self):
LOG.info("%s %s start", self.__class__, self.force_clean.__name__)
kill_by_name('qperf')
self._send_processes = []
self._receive_processes = []
return True
def _parse_data(self, data):
LOG.info(data)
latency = 0
if data:
buf = data.splitlines()
if "latency" in buf[1]:
data = buf[1].strip().split()
if data[3] == "us":
latency = float(data[2]) / 1000
else:
latency = float(data[2]) / 1000
result = {
mark.minLatency: latency,
mark.avgLatency: latency,
mark.maxLatency: latency
}
return result
def unit_test():
perf = Qperf()
perf.receive_start(namespace='receive')
send = {
"namespace": "send",
"protocol": "udp_lat",
"dst": [
{"ip": "192.168.1.102"}
],
"size": 64,
}
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/vstf-qperf.log", clevel=logging.DEBUG)
unit_test()
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