tools/run_tests/run_performance_tests.py

#!/usr/bin/env python2.7
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"""Run performance tests locally or remotely."""

import argparse
import jobset
import multiprocessing
import os
import subprocess
import sys
import tempfile
import time
import uuid


_ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
os.chdir(_ROOT)


_REMOTE_HOST_USERNAME = 'jenkins'


class CXXLanguage:

  def __init__(self):
    self.safename = 'cxx'

  def scenarios(self):
    # TODO(jtattermusch): add more scenarios
    return {
            # Scenario 1: generic async streaming ping-pong (contentionless latency)
            'cpp_async_generic_streaming_ping_pong': [
                '--rpc_type=STREAMING',
                '--client_type=ASYNC_CLIENT',
                '--server_type=ASYNC_GENERIC_SERVER',
                '--outstanding_rpcs_per_channel=1',
                '--client_channels=1',
                '--bbuf_req_size=0',
                '--bbuf_resp_size=0',
                '--async_client_threads=1',
                '--async_server_threads=1',
                '--secure_test=true',
                '--num_servers=1',
                '--num_clients=1',
                '--server_core_limit=0',
                '--client_core_limit=0'],
            # Scenario 5: Sync unary ping-pong with protobufs
            'cpp_sync_unary_ping_pong_protobuf': [
                '--rpc_type=UNARY',
                '--client_type=SYNC_CLIENT',
                '--server_type=SYNC_SERVER',
                '--outstanding_rpcs_per_channel=1',
                '--client_channels=1',
                '--simple_req_size=0',
                '--simple_resp_size=0',
                '--secure_test=true',
                '--num_servers=1',
                '--num_clients=1',
                '--server_core_limit=0',
                '--client_core_limit=0']}

  def __str__(self):
    return 'c++'


class CSharpLanguage:

  def __init__(self):
    self.safename = str(self)

  def __str__(self):
    return 'csharp'


class NodeLanguage:

  def __init__(self):
    pass
    self.safename = str(self)

  def __str__(self):
    return 'node'


_LANGUAGES = {
    'c++' : CXXLanguage(),
    'csharp' : CSharpLanguage(),
    'node' : NodeLanguage(),
}


class QpsWorkerJob:
  """Encapsulates a qps worker server job."""

  def __init__(self, spec, host_and_port):
    self._spec = spec
    self.host_and_port = host_and_port
    self._job = jobset.Job(spec, bin_hash=None, newline_on_success=True, travis=True, add_env={})

  def is_running(self):
    """Polls a job and returns True if given job is still running."""
    return self._job.state(jobset.NoCache()) == jobset._RUNNING

  def kill(self):
    return self._job.kill()


def create_qpsworker_job(language, port=10000, remote_host=None):
  # TODO: support more languages
  cmd = 'bins/opt/qps_worker --driver_port=%s' % port
  if remote_host:
    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, remote_host)
    cmd = 'ssh %s "cd ~/performance_workspace/grpc/ && %s"' % (user_at_host, cmd)
    host_and_port='%s:%s' % (remote_host, port)
  else:
    host_and_port='localhost:%s' % port

  jobspec = jobset.JobSpec(
      cmdline=[cmd],
      shortname='qps_worker',
      timeout_seconds=15*60,
      shell=True)
  return QpsWorkerJob(jobspec, host_and_port)


def create_scenario_jobspec(scenario_name, driver_args, workers, remote_host=None):
  """Runs one scenario using QPS driver."""
  # setting QPS_WORKERS env variable here makes sure it works with SSH too.
  cmd = 'QPS_WORKERS="%s" bins/opt/qps_driver ' % ','.join(workers)
  cmd += ' '.join(driver_args)
  if remote_host:
    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, remote_host)
    cmd = 'ssh %s "cd ~/performance_workspace/grpc/ && %s"' % (user_at_host, cmd)

  return jobset.JobSpec(
      cmdline=[cmd],
      shortname='qps_driver.%s' % scenario_name,
      timeout_seconds=3*60,
      shell=True,
      verbose_success=True)


def archive_repo():
  """Archives local version of repo including submodules."""
  # TODO: also archive grpc-go and grpc-java repos
  archive_job = jobset.JobSpec(
      cmdline=['tar', '-cf', '../grpc.tar', '../grpc/'],
      shortname='archive_repo',
      timeout_seconds=3*60)

  jobset.message('START', 'Archiving local repository.', do_newline=True)
  num_failures, _ = jobset.run(
      [archive_job], newline_on_success=True, maxjobs=1)
  if num_failures == 0:
    jobset.message('SUCCESS',
                   'Archive with local repository create successfully.',
                   do_newline=True)
  else:
    jobset.message('FAILED', 'Failed to archive local repository.',
                   do_newline=True)
    sys.exit(1)


def prepare_remote_hosts(hosts):
  """Prepares remote hosts."""
  prepare_jobs = []
  for host in hosts:
    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, host)
    prepare_jobs.append(
        jobset.JobSpec(
            cmdline=['tools/run_tests/performance/remote_host_prepare.sh'],
            shortname='remote_host_prepare.%s' % host,
            environ = {'USER_AT_HOST': user_at_host},
            timeout_seconds=3*60))
  jobset.message('START', 'Preparing remote hosts.', do_newline=True)
  num_failures, _ = jobset.run(
      prepare_jobs, newline_on_success=True, maxjobs=10)
  if num_failures == 0:
    jobset.message('SUCCESS',
                   'Remote hosts ready to start build.',
                   do_newline=True)
  else:
    jobset.message('FAILED', 'Failed to prepare remote hosts.',
                   do_newline=True)
    sys.exit(1)


def build_on_remote_hosts(hosts, build_local=False):
  """Builds performance worker on remote hosts."""
  build_timeout = 15*60
  build_jobs = []
  for host in hosts:
    user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, host)
    build_jobs.append(
        jobset.JobSpec(
            cmdline=['tools/run_tests/performance/remote_host_build.sh'],
            shortname='remote_host_build.%s' % host,
            environ = {'USER_AT_HOST': user_at_host, 'CONFIG': 'opt'},
            timeout_seconds=build_timeout))
  if build_local:
    # Build locally as well
    build_jobs.append(
        jobset.JobSpec(
            cmdline=['tools/run_tests/performance/build_performance.sh'],
            shortname='local_build',
            environ = {'CONFIG': 'opt'},
            timeout_seconds=build_timeout))
  jobset.message('START', 'Building on remote hosts.', do_newline=True)
  num_failures, _ = jobset.run(
      build_jobs, newline_on_success=True, maxjobs=10)
  if num_failures == 0:
    jobset.message('SUCCESS',
                   'Build on remote hosts was successful.',
                   do_newline=True)
  else:
    jobset.message('FAILED', 'Failed to build on remote hosts.',
                   do_newline=True)
    sys.exit(1)


def start_qpsworkers(worker_hosts):
  """Starts QPS workers as background jobs."""
  if not worker_hosts:
    # run two workers locally
    workers=[(None, 10000), (None, 10010)]
  elif len(worker_hosts) == 1:
    # run two workers on the remote host
    workers=[(worker_hosts[0], 10000), (worker_hosts[0], 10010)]
  else:
    # run one worker per each remote host
    workers=[(worker_host, 10000) for worker_host in worker_hosts]

  return [create_qpsworker_job(CXXLanguage(),
                               port=worker[1],
                               remote_host=worker[0])
          for worker in workers]


def create_scenarios(languages, workers, remote_host=None):
  """Create jobspecs for scenarios to run."""
  scenarios = []
  for language in languages:
    for scenario_name, driver_args in language.scenarios().iteritems():
      scenario = create_scenario_jobspec(scenario_name,
                                         driver_args,
                                         workers,
                                         remote_host=remote_host)
      scenarios.append(scenario)

  # the very last scenario requests shutting down the workers.
  scenarios.append(create_scenario_jobspec('quit_workers',
                                           ['--quit=true'],
                                           workers,
                                           remote_host=remote_host))
  return scenarios


def finish_qps_workers(jobs):
  """Waits for given jobs to finish and eventually kills them."""
  retries = 0
  while any(job.is_running() for job in jobs):
    for job in qpsworker_jobs:
      if job.is_running():
        print 'QPS worker "%s" is still running.' % job.host_and_port
    if retries > 10:
      print 'Killing all QPS workers.'
      for job in jobs:
        job.kill()
    retries += 1
    time.sleep(3)
  print 'All QPS workers finished.'


argp = argparse.ArgumentParser(description='Run performance tests.')
argp.add_argument('--remote_driver_host',
                  default=None,
                  help='Run QPS driver on given host. By default, QPS driver is run locally.')
argp.add_argument('--remote_worker_host',
                  nargs='+',
                  default=[],
                  help='Worker hosts where to start QPS workers.')

args = argp.parse_args()

# Put together set of remote hosts where to run and build
remote_hosts = set()
if args.remote_worker_host:
  for host in args.remote_worker_host:
    remote_hosts.add(host)
if args.remote_driver_host:
  remote_hosts.add(args.remote_driver_host)

if remote_hosts:
  archive_repo()
  prepare_remote_hosts(remote_hosts)

build_local = False
if not args.remote_driver_host:
  build_local = True
build_on_remote_hosts(remote_hosts, build_local=build_local)

qpsworker_jobs = start_qpsworkers(args.remote_worker_host)

worker_addresses = [job.host_and_port for job in qpsworker_jobs]

try:
  scenarios = create_scenarios(languages=[CXXLanguage()],
                               workers=worker_addresses,
                               remote_host=args.remote_driver_host)
  if not scenarios:
    raise Exception('No scenarios to run')

  jobset.message('START', 'Running scenarios.', do_newline=True)
  num_failures, _ = jobset.run(
      scenarios, newline_on_success=True, maxjobs=1)
  if num_failures == 0:
    jobset.message('SUCCESS',
                   'All scenarios finished successfully.',
                   do_newline=True)
  else:
    jobset.message('FAILED', 'Some of the scenarios failed.',
                   do_newline=True)
    sys.exit(1)
finally:
  finish_qps_workers(qpsworker_jobs)