def _run_server(self, cmd):
logging.debug("running as server...")
server = ShellProcess(cmd)
try:
server.wait()
except OSError as e:
if e.errno == errno.EINTR:
server.kill()
def _run_client(self, cmd):
logging.debug("running as client...")
client = ShellProcess(cmd)
try:
rv = client.wait()
except OSError as e:
if e.errno == errno.EINTR:
client.kill()
output = client.read_nonblocking()
if rv != 0:
logging.info("Could not get performance throughput! Are you sure "
"netperf is installed on both machines and machines "
"are mutually accessible?")
return (False, "Could not get performance throughput! Are you "
"sure netperf is installed on both machines and "
"machines are mutually accessible?")
return self._parse_output(self.get_opt("threshold"), output)
def run_client(self, cmd):
client = ShellProcess(cmd)
try:
client.wait()
except OSError as e:
# we got interrupted, let's gather data
if e.errno == errno.EINTR:
client.kill()
output = client.read_nonblocking()
if re.search("connect failed:", output):
logging.info("Iperf connection failed!")
return (False, "Iperf connection failed!")
m = re.search("\[[^0-9]*[0-9]*\]\s*0.0+-\s*\d*\.\d+\s*sec\s*\d*(\.\d*){0,1}\s*[ kGMT]Bytes\s*(\d*(\.\d*){0,1}\s*[ kGMT]bits\/sec)", output, re.IGNORECASE)
if m is None:
logging.info("Could not get performance throughput!")
return (False, "Could not get performance throughput!")
rate = m.group(2)
if self.threshold is not None:
# check if expected threshold is reached
result = self._rate_over_threshold(rate)
if result:
return (True, "Measured rate (%s) is over threshold (%s)." %
(rate, self.threshold))
else:
return (False, "Measured rate (%s) is below threshold (%s)!" %
(rate, self.threshold))
else:
return True, "Measured rate: %s" % rate
def run(self):
nc = ShellProcess(self._compose_nc_cmd())
# check whether anything is being sent over the line
td = ShellProcess(self._compose_tcpdump_cmd())
try:
td.read_until_output_matches("10 packets captured", timeout=5)
except ShellProcess.ProcessTerminatedError:
return self.set_fail("tcpdump process died unexpectedly!")
except ShellProcess.ProcessTimeoutError:
return self.set_fail("No stream detected!")
td.kill()
duration = self.get_opt("duration", default=30)
time.sleep(duration)
nc.kill()
logging.info("nc stream with duration of %s secs" % duration)
return self.set_pass()
def _run_server(self, cmd):
logging.debug("running as server...")
server = ShellProcess(cmd)
try:
server.wait()
except OSError as e:
if e.errno == errno.EINTR:
server.kill()
def run_server(self, cmd):
server = ShellProcess(cmd)
if not self._keep_server_running:
time.sleep(float(self.duration))
server.read_nonblocking()
server.kill()
else:
try:
server.wait()
except OSError as e:
if e.errno == errno.EINTR:
server.kill()
server.read_nonblocking()
def _run_client(self, cmd):
logging.debug("running as client...")
res_data = {}
res_data["testname"] = self._testname
rv = 0
results = []
rates = []
for i in range(1, self._runs + 1):
if self._runs > 1:
logging.info("Netperf starting run %d" % i)
clients = []
client_results = []
for i in range(0, self._num_parallel):
clients.append(ShellProcess(cmd))
for client in clients:
ret_code = None
try:
ret_code = client.wait()
rv += ret_code
except OSError as e:
if e.errno == errno.EINTR:
client.kill()
output = client.read_nonblocking()
logging.debug(output)
if ret_code is not None and ret_code == 0:
client_results.append(self._parse_output(output))
if len(client_results) > 0:
#accumulate all the parallel results into one
result = client_results[0]
for res in client_results[1:]:
result = self._sum_results(result, res)
results.append(result)
rates.append(results[-1]["rate"])
if results > 1:
res_data["results"] = results
if len(rates) > 0:
rate = sum(rates) / len(rates)
else:
rate = 0.0
if len(rates) > 1:
# setting deviation to 2xstd_deviation because of the 68-95-99.7
# rule this seems comparable to the -I 99 netperf setting
res_data["std_deviation"] = std_deviation(rates)
rate_deviation = 2 * res_data["std_deviation"]
elif len(rates) == 1 and self._confidence is not None:
result = results[0]
rate_deviation = rate * (result["confidence"][1] / 100)
else:
rate_deviation = 0.0
res_data["rate"] = rate
res_data["rate_deviation"] = rate_deviation
rate_pretty = self._pretty_rate(rate)
rate_dev_pretty = self._pretty_rate(rate_deviation,
unit=rate_pretty["unit"])
if rv != 0 and self._runs == 1:
res_data["msg"] = "Could not get performance throughput!"
logging.info(res_data["msg"])
return (False, res_data)
elif rv != 0 and self._runs > 1:
res_data["msg"] = "At least one of the Netperf runs failed, "\
"check the logs and result data for more "\
"information."
logging.info(res_data["msg"])
return (False, res_data)
res_val = False
res_data["msg"] = "Measured rate was %.2f +-%.2f %s" %\
(rate_pretty["rate"],
rate_dev_pretty["rate"],
rate_pretty["unit"])
if rate > 0.0:
res_val = True
else:
res_val = False
return (res_val, res_data)
if self._max_deviation is not None:
if self._max_deviation["type"] == "percent":
percentual_deviation = (rate_deviation / rate) * 100
if percentual_deviation > self._max_deviation["value"]:
res_val = False
res_data["msg"] = "Measured rate %.2f +-%.2f %s has bigger "\
"deviation than allowed (+-%.2f %%)" %\
(rate_pretty["rate"],
rate_dev_pretty["rate"],
rate_pretty["unit"],
self._max_deviation["value"])
return (res_val, res_data)
elif self._max_deviation["type"] == "absolute":
if rate_deviation > self._max_deviation["value"]["rate"]:
pretty_deviation = self._pretty_rate(
self._max_deviation["value"]["rate"])
res_val = False
res_data["msg"] = "Measured rate %.2f +-%.2f %s has bigger "\
"deviation than allowed (+-%.2f %s)" %\
(rate_pretty["rate"],
rate_dev_pretty["rate"],
rate_pretty["unit"],
pretty_deviation["rate"],
pretty_deviation["unit"])
return (res_val, res_data)
if self._threshold_interval is not None:
result_interval = (rate - rate_deviation, rate + rate_deviation)
threshold_pretty = self._pretty_rate(self._threshold["rate"])
threshold_dev_pretty = self._pretty_rate(
self._threshold_deviation["rate"],
unit=threshold_pretty["unit"])
if self._threshold_interval[0] > result_interval[1]:
res_val = False
res_data["msg"] = "Measured rate %.2f +-%.2f %s is lower "\
"than threshold %.2f +-%.2f %s" %\
(rate_pretty["rate"],
rate_dev_pretty["rate"],
rate_pretty["unit"],
threshold_pretty["rate"],
threshold_dev_pretty["rate"],
threshold_pretty["unit"])
return (res_val, res_data)
else:
res_val = True
res_data["msg"] = "Measured rate %.2f +-%.2f %s is higher "\
"than threshold %.2f +-%.2f %s" %\
(rate_pretty["rate"],
rate_dev_pretty["rate"],
rate_pretty["unit"],
threshold_pretty["rate"],
threshold_dev_pretty["rate"],
threshold_pretty["unit"])
return (res_val, res_data)
return (res_val, res_data)