def Run(benchmark_spec):
"""Measure TCP stream throughput between two VMs.
Args:
benchmark_spec: The benchmark specification. Contains all data that is
required to run the benchmark.
Returns:
A list of sample.Sample objects with the benchmark results.
"""
vms = benchmark_spec.vms
results = []
# Send traffic in both directions
for originator in [0, 1]:
sending_vm = vms[originator]
receiving_vm = vms[originator ^ 1]
# Send using external IP addresses
if vm_util.ShouldRunOnExternalIpAddress():
results.extend(
ntttcp.RunNtttcp(sending_vm, receiving_vm,
receiving_vm.ip_address, 'external'))
# Send using internal IP addresses
if vm_util.ShouldRunOnInternalIpAddress(sending_vm, receiving_vm):
results.extend(
ntttcp.RunNtttcp(sending_vm, receiving_vm,
receiving_vm.internal_ip, 'internal'))
return results
def _RunTest(benchmark_spec, sender, receiver, dest_ip, ip_type, conf,
cooldown_s):
"""Run a single NTTTCP test, and publish the results."""
try:
results = ntttcp.RunNtttcp(sender, receiver, dest_ip, ip_type,
conf.udp, conf.threads, conf.time_s,
conf.packet_size, cooldown_s)
publisher.PublishRunStageSamples(benchmark_spec, results)
return True
except IOError:
logging.info('Failed to publish %s IP results for config %s', ip_type,
str(conf))
return False