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bgperf.py
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#!/usr/bin/env python3
#
# Copyright (C) 2015, 2016 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import argparse
import os
import sys
import yaml
import time
import shutil
import netaddr
import datetime
from collections import defaultdict
from argparse import ArgumentParser, REMAINDER
from itertools import chain, islice
from requests.exceptions import ConnectionError
from pyroute2 import IPRoute
from socket import AF_INET
from nsenter import Namespace
from psutil import virtual_memory
from subprocess import check_output
import matplotlib.pyplot as plt
import numpy as np
from base import *
from exabgp import ExaBGP, ExaBGP_MRTParse
from gobgp import GoBGP, GoBGPTarget
from bird import BIRD, BIRDTarget
from frr import FRRouting, FRRoutingTarget
from frr_compiled import FRRoutingCompiled, FRRoutingCompiledTarget
from rustybgp import RustyBGP, RustyBGPTarget
from openbgp import OpenBGP, OpenBGPTarget
from flock import Flock, FlockTarget
from srlinux import SRLinux, SRLinuxTarget
from junos import Junos, JunosTarget
from eos import Eos, EosTarget
from tester import ExaBGPTester, BIRDTester
from mrt_tester import GoBGPMRTTester, ExaBGPMrtTester
from bgpdump2 import Bgpdump2, Bgpdump2Tester
from monitor import Monitor
from settings import dckr
from queue import Queue
from mako.template import Template
from packaging import version
from docker.types import IPAMConfig, IPAMPool
import re
def gen_mako_macro():
return '''<%
import netaddr
from itertools import islice
it = netaddr.iter_iprange('100.0.0.0','160.0.0.0')
def gen_paths(num):
return list('{0}/32'.format(ip) for ip in islice(it, num))
%>
'''
def rm_line():
#print('\x1b[1A\x1b[2K\x1b[1D\x1b[1A')
pass
def gc_thresh3():
gc_thresh3 = '/proc/sys/net/ipv4/neigh/default/gc_thresh3'
with open(gc_thresh3) as f:
return int(f.read().strip())
def doctor(args):
ver = dckr.version()['Version']
if ver.endswith('-ce'):
curr_version = version.parse(ver.replace('-ce', ''))
else:
curr_version = version.parse(ver)
min_version = version.parse('1.9.0')
ok = curr_version >= min_version
print('docker version ... {1} ({0})'.format(ver, 'ok' if ok else 'update to {} at least'.format(min_version)))
print('bgperf image', end=' ')
if img_exists('bgperf/exabgp'):
print('... ok')
else:
print('... not found. run `bgperf prepare`')
for name in ['gobgp', 'bird', 'frr', 'frr_c', 'rustybgp', 'openbgp', 'flock', 'srlinux']:
print('{0} image'.format(name), end=' ')
if img_exists('bgperf/{0}'.format(name)):
print('... ok')
else:
print('... not found. if you want to bench {0}, run `bgperf prepare`'.format(name))
print('/proc/sys/net/ipv4/neigh/default/gc_thresh3 ... {0}'.format(gc_thresh3()))
def prepare(args):
ExaBGP.build_image(args.force, nocache=args.no_cache)
ExaBGP_MRTParse.build_image(args.force, nocache=args.no_cache)
GoBGP.build_image(args.force, nocache=args.no_cache)
BIRD.build_image(args.force, nocache=args.no_cache)
FRRouting.build_image(args.force, nocache=args.no_cache)
RustyBGP.build_image(args.force, nocache=args.no_cache)
OpenBGP.build_image(args.force, nocache=args.no_cache)
FRRoutingCompiled.build_image(args.force, nocache=args.no_cache)
Bgpdump2.build_image(args.force, nocache=args.no_cache)
#don't do anything for srlinux, junos, eos because it's just a download out of band
def update(args):
if args.image == 'all' or args.image == 'exabgp':
ExaBGP.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'exabgp_mrtparse':
ExaBGP_MRTParse.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'gobgp':
GoBGP.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'bird':
BIRD.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'frr':
FRRouting.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'rustybgp':
RustyBGP.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'openbgp':
OpenBGP.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'flock':
Flock.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'all' or args.image == 'frr_c':
FRRoutingCompiled.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'eos':
Eos.build_image(True, checkout=args.checkout, nocache=args.no_cache)
if args.image == 'bgpdump2':
Bgpdump2.build_image(True, checkout=args.checkout, nocache=args.no_cache)
def remove_target_containers():
for target_class in [BIRDTarget, GoBGPTarget, FRRoutingTarget, FRRoutingCompiledTarget,
RustyBGPTarget, OpenBGPTarget, FlockTarget, JunosTarget, SRLinuxTarget, EosTarget]:
if ctn_exists(target_class.CONTAINER_NAME):
print('removing target container', target_class.CONTAINER_NAME)
dckr.remove_container(target_class.CONTAINER_NAME, force=True)
def remove_old_containers():
if ctn_exists(Monitor.CONTAINER_NAME):
print('removing monitor container', Monitor.CONTAINER_NAME)
dckr.remove_container(Monitor.CONTAINER_NAME, force=True)
for i, ctn_name in enumerate (get_ctn_names()):
if ctn_name.startswith(ExaBGPTester.CONTAINER_NAME_PREFIX) or \
ctn_name.startswith(ExaBGPMrtTester.CONTAINER_NAME_PREFIX) or \
ctn_name.startswith(GoBGPMRTTester.CONTAINER_NAME_PREFIX) or \
ctn_name.startswith(Bgpdump2Tester.CONTAINER_NAME_PREFIX) or \
ctn_name.startswith(BIRDTester.CONTAINER_NAME_PREFIX):
print(f"removing tester container {i} {ctn_name}")
if i > 0:
rm_line()
dckr.remove_container(ctn_name, force=True)
def controller_idle_percent(queue):
'''collect stats on the whole machine that is running the tests'''
stop_monitoring = False
def stats():
output = {}
output['who'] = 'controller'
while True:
if stop_monitoring == True:
return
utilization = check_output(['mpstat', '1' ,'1']).decode('utf-8').split('\n')[3]
g = re.match(r'.*all\s+.*\d+\s+(\d+\.\d+)', utilization).groups()
output['idle'] = float(g[0])
output['time'] = datetime.datetime.now()
queue.put(output)
# dont' sleep because mpstat is already taking 1 second to run
t = Thread(target=stats)
t.daemon = True
t.start()
def controller_memory_free(queue):
'''collect stats on the whole machine that is running the tests'''
stop_monitoring = False
def stats():
output = {}
output['who'] = 'controller'
while True:
if stop_monitoring == True:
return
free = check_output(['free', '-m']).decode('utf-8').split('\n')[1]
g = re.match(r'.*\d+\s+(\d+)', free).groups()
output['free'] = float(g[0]) * 1024 * 1024
output['time'] = datetime.datetime.now()
queue.put(output)
time.sleep(1)
t = Thread(target=stats)
t.daemon = True
t.start()
stop_monitoring = False
def bench(args):
output_stats = {}
config_dir = '{0}/{1}'.format(args.dir, args.bench_name)
dckr_net_name = args.docker_network_name or args.bench_name + '-br'
remove_target_containers()
if not args.repeat:
remove_old_containers()
if os.path.exists(config_dir):
shutil.rmtree(config_dir, ignore_errors=True)
bench_start = time.time()
if args.file:
with open(args.file) as f:
conf = yaml.safe_load(Template(f.read()).render())
else:
conf = gen_conf(args)
if not os.path.exists(config_dir):
os.makedirs(config_dir)
with open('{0}/scenario.yaml'.format(config_dir), 'w') as f:
f.write(conf)
conf = yaml.safe_load(Template(conf).render())
bridge_found = False
for network in dckr.networks(names=[dckr_net_name]):
if network['Name'] == dckr_net_name:
print('Docker network "{}" already exists'.format(dckr_net_name))
bridge_found = True
break
if not bridge_found:
subnet = conf['local_prefix']
print('creating Docker network "{}" with subnet {}'.format(dckr_net_name, subnet))
ipam = IPAMConfig(pool_configs=[IPAMPool(subnet=subnet)])
network = dckr.create_network(dckr_net_name, driver='bridge', ipam=ipam)
num_tester = sum(len(t.get('neighbors', [])) for t in conf.get('testers', []))
if num_tester > gc_thresh3():
print('gc_thresh3({0}) is lower than the number of peer({1})'.format(gc_thresh3(), num_tester))
print('type next to increase the value')
print('$ echo 16384 | sudo tee /proc/sys/net/ipv4/neigh/default/gc_thresh3')
print('run monitor')
m = Monitor(config_dir+'/monitor', conf['monitor'])
m.monitor_for = args.target
m.run(conf, dckr_net_name)
## I'd prefer to start up the testers and then start up the target
# however, bgpdump2 isn't smart enough to wait and rety connections so
# this is the order
testers = []
mrt_injector = None
if not args.repeat:
valid_indexes = None
asns = None
for idx, tester in enumerate(conf['testers']):
if 'name' not in tester:
name = 'tester{0}'.format(idx)
else:
name = tester['name']
if not 'type' in tester:
tester_type = 'bird'
else:
tester_type = tester['type']
if tester_type == 'exa':
tester_class = ExaBGPTester
elif tester_type == 'bird':
tester_class = BIRDTester
elif tester_type == 'mrt':
if 'mrt_injector' not in tester:
mrt_injector = 'gobgp'
else:
mrt_injector = tester['mrt_injector']
if mrt_injector == 'gobgp':
tester_class = GoBGPMRTTester
elif mrt_injector == 'exabgp':
tester_class = ExaBGPMrtTester
elif mrt_injector == 'bgpdump2':
tester_class = Bgpdump2Tester
else:
print('invalid mrt_injector:', mrt_injector)
sys.exit(1)
else:
print('invalid tester type:', tester_type)
sys.exit(1)
t = tester_class(name, config_dir+'/'+name, tester)
if not mrt_injector:
print('run tester', name, 'type', tester_type)
else:
print('run tester', name, 'type', tester_type, mrt_injector)
if idx > 0:
rm_line()
t.run(conf['target'], dckr_net_name)
testers.append(t)
# have to do some extra stuff with bgpdump2
# because it's sending real data, we need to figure out
# wich neighbor has data and what the actual ASN is
if tester_type == 'mrt' and mrt_injector == 'bgpdump2' and not valid_indexes:
print("finding asns and such from mrt file")
valid_indexes = t.get_index_valid(args.prefix_num)
asns = t.get_index_asns()
for test in conf['testers']:
test['bgpdump-index'] = valid_indexes[test['mrt-index'] % len(valid_indexes)]
neighbor = next(iter(test['neighbors'].values()))
neighbor['as'] = asns[test['bgpdump-index']]
# TODO: this needs to all be moved to it's own object and file
# so this stuff isn't copied around
str_conf = gen_mako_macro() + yaml.dump(conf, default_flow_style=False)
with open('{0}/scenario.yaml'.format(config_dir), 'w') as f:
f.write(str_conf)
is_remote = True if 'remote' in conf['target'] and conf['target']['remote'] else False
if is_remote:
print('target is remote ({})'.format(conf['target']['local-address']))
ip = IPRoute()
# r: route to the target
r = ip.get_routes(dst=conf['target']['local-address'], family=AF_INET)
if len(r) == 0:
print('no route to remote target {0}'.format(conf['target']['local-address']))
sys.exit(1)
# intf: interface used to reach the target
idx = [t[1] for t in r[0]['attrs'] if t[0] == 'RTA_OIF'][0]
intf = ip.get_links(idx)[0]
intf_name = intf.get_attr('IFLA_IFNAME')
# raw_bridge_name: Linux bridge name of the Docker bridge
# TODO: not sure if the linux bridge name is always given by
# "br-<first 12 characters of Docker network ID>".
raw_bridge_name = args.bridge_name or 'br-{}'.format(network['Id'][0:12])
# raw_bridges: list of Linux bridges that match raw_bridge_name
raw_bridges = ip.link_lookup(ifname=raw_bridge_name)
if len(raw_bridges) == 0:
if not args.bridge_name:
print(('can\'t determine the Linux bridge interface name starting '
'from the Docker network {}'.format(dckr_net_name)))
else:
print(('the Linux bridge name provided ({}) seems nonexistent'.format(
raw_bridge_name)))
print(('Since the target is remote, the host interface used to '
'reach the target ({}) must be part of the Linux bridge '
'used by the Docker network {}, but without the correct Linux '
'bridge name it\'s impossible to verify if that\'s true'.format(
intf_name, dckr_net_name)))
if not args.bridge_name:
print(('Please supply the Linux bridge name corresponding to the '
'Docker network {} using the --bridge-name argument.'.format(
dckr_net_name)))
sys.exit(1)
# intf_bridge: bridge interface that intf is already member of
intf_bridge = intf.get_attr('IFLA_MASTER')
# if intf is not member of the bridge, add it
if intf_bridge not in raw_bridges:
if intf_bridge is None:
print(('Since the target is remote, the host interface used to '
'reach the target ({}) must be part of the Linux bridge '
'used by the Docker network {}'.format(
intf_name, dckr_net_name)))
sys.stdout.write('Do you confirm to add the interface {} '
'to the bridge {}? [yes/NO] '.format(
intf_name, raw_bridge_name
))
try:
answer = input()
except:
print('aborting')
sys.exit(1)
answer = answer.strip()
if answer.lower() != 'yes':
print('aborting')
sys.exit(1)
print('adding interface {} to the bridge {}'.format(
intf_name, raw_bridge_name
))
br = raw_bridges[0]
try:
ip.link('set', index=idx, master=br)
except Exception as e:
print(('Something went wrong: {}'.format(str(e))))
print(('Please consider running the following command to '
'add the {iface} interface to the {br} bridge:\n'
' sudo brctl addif {br} {iface}'.format(
iface=intf_name, br=raw_bridge_name)))
print('\n\n\n')
raise
else:
curr_bridge_name = ip.get_links(intf_bridge)[0].get_attr('IFLA_IFNAME')
print(('the interface used to reach the target ({}) '
'is already member of the bridge {}, which is not '
'the one used in this configuration'.format(
intf_name, curr_bridge_name)))
print(('Please consider running the following command to '
'remove the {iface} interface from the {br} bridge:\n'
' sudo brctl addif {br} {iface}'.format(
iface=intf_name, br=curr_bridge_name)))
sys.exit(1)
else:
if args.target == 'gobgp':
target_class = GoBGPTarget
elif args.target == 'bird':
target_class = BIRDTarget
elif args.target == 'frr':
target_class = FRRoutingTarget
elif args.target == 'frr_c':
target_class = FRRoutingCompiledTarget
elif args.target == 'rustybgp':
target_class = RustyBGPTarget
elif args.target == 'openbgp':
target_class = OpenBGPTarget
elif args.target == 'flock':
target_class = FlockTarget
elif args.target == 'srlinux':
target_class = SRLinuxTarget
elif args.target == 'junos':
target_class = JunosTarget
elif args.target == 'eos':
target_class = EosTarget
else:
print(f"incorrect target {args.target}")
print('run', args.target)
if args.image:
target = target_class('{0}/{1}'.format(config_dir, args.target), conf['target'], image=args.image)
else:
target = target_class('{0}/{1}'.format(config_dir, args.target), conf['target'])
target.run(conf, dckr_net_name)
time.sleep(1)
output_stats['monitor_wait_time'] = m.wait_established(conf['target']['local-address'])
output_stats['cores'], output_stats['memory'] = get_hardware_info()
if target_class == EosTarget:
print("Waiting extra 10 seconds for EOS ")
time.sleep(10)
start = datetime.datetime.now()
q = Queue()
m.stats(q)
controller_idle_percent(q)
controller_memory_free(q)
if not is_remote:
target.stats(q)
target.neighbor_stats(q)
# want to launch all the neighbors at the same(ish) time
# launch them after the test starts because as soon as they start they can send info at least for mrt
# does it need to be in a different place for mrt than exabgp?
for i in range(len(testers)):
testers[i].launch()
if i > 0:
rm_line()
print(f"launched {i+1} testers")
# if args.prefix_num >= 100_000:
# time.sleep(1)
f = open(args.output, 'w') if args.output else None
cpu = 0
mem = 0
output_stats['max_cpu'] = 0
output_stats['max_mem'] = 0
output_stats['first_received_time'] = start - start
output_stats['min_idle'] = 100
output_stats['min_free'] = 1_000_000_000_000_000
output_stats['required'] = conf['monitor']['check-points'][0]
bench_stats = []
neighbors_checked = 0
neighbors_received_full = 0
percent_idle = 0
mem_free = 0
recved_checkpoint = False
neighbors_checkpoint = False
last_recved = 0
last_recved_count = 0
last_neighbors_checked = 0
recved = 0
less_last_received = 0
while True:
info = q.get()
if not is_remote and info['who'] == target.name:
if 'neighbors_checked' in info:
if len(info['neighbors_checked']) > 0 and all(value == True for value in info['neighbors_checked'].values()):
neighbors_checked = sum(1 if value == True else 0 for value in info['neighbors_checked'].values())
neighbors_checkpoint = True
else:
neighbors_checked = sum(1 if value == True else 0 for value in info['neighbors_checked'].values())
elif 'neighbors_received_full' in info:
if len(info['neighbors_received_full']) >= 1 and all(value == True for value in info['neighbors_received_full'].values()):
neighbors_received_full = sum(1 if value == True else 0 for value in info['neighbors_received_full'].values())
neighbors_checkpoint = True
else:
neighbors_received_full = sum(1 if value == True else 0 for value in info['neighbors_received_full'].values())
else:
cpu = info['cpu']
mem = info['mem']
output_stats['max_cpu'] = cpu if cpu > output_stats['max_cpu'] else output_stats['max_cpu']
output_stats['max_mem'] = mem if mem > output_stats['max_mem'] else output_stats['max_mem']
if info['who'] == 'controller':
if 'free' in info:
mem_free = info['free']
output_stats['min_free'] = mem_free if mem_free < output_stats['min_free'] else output_stats['min_free']
elif 'idle' in info:
percent_idle = info['idle']
output_stats['min_idle'] = percent_idle if percent_idle < output_stats['min_idle'] else output_stats['min_idle']
if info['who'] == m.name:
elapsed = info['time'] - start
output_stats['elapsed'] = elapsed
recved = info['afi_safis'][0]['state']['accepted'] if 'accepted' in info['afi_safis'][0]['state'] else 0
if last_recved > recved:
if neighbors_checked >= last_neighbors_checked:
less_last_received += 1
else:
less_last_received = 0
if less_last_received >= 10 and (last_recved - recved) / last_recved > .01:
output_stats['recved'] = recved
f.close() if f else None
output_stats['fail_msg'] = f"FAILED: dropping received count {recved} neighbors_checked {neighbors_checked}"
output_stats['tester_errors'] = tester_class.find_errors()
output_stats['tester_timeouts'] = tester_class.find_timeouts()
print("FAILED")
o_s = finish_bench(args, output_stats, bench_stats, bench_start,target, m, fail=True)
return o_s
elif (last_neighbors_checked > 0 or neighbors_received_full > 0) and recved == last_recved:
last_recved_count +=1
else:
last_recved = recved
last_recved_count = 0
if neighbors_checked != last_neighbors_checked:
last_neighbors_checked = neighbors_checked
last_recved_count = 0
if elapsed.seconds > 0:
rm_line()
print('elapsed: {0}sec, cpu: {1:>4.2f}%, mem: {2}, mon recved: {3}, neighbors_received: {4}, neighbors_accepted: {5}, %idle {6}, free mem {7}'.format(elapsed.seconds,
cpu, mem_human(mem), recved, neighbors_received_full, neighbors_checked, percent_idle, mem_human(mem_free)))
bench_stats.append([elapsed.seconds, float(f"{cpu:>4.2f}"), mem, recved, neighbors_checked, percent_idle, mem_free])
f.write('{0}, {1}, {2}, {3}\n'.format(elapsed.seconds, cpu, mem, recved)) if f else None
f.flush() if f else None
if info['checked']:
recved_checkpoint = True
if recved > 0 and output_stats['first_received_time'] == start - start:
output_stats['first_received_time'] = elapsed
# we are trying to discover if the tests have finished
# in the ieal world, we'd know how many prefixes were sent and we'd just check for that
# that's how things work when generating with bird or exa, but not with MRT playback or when testing filtering
# with MRT Playback, not all prefixes overlap, so we aren't sure how many there will be.
# for example, each instance might send 800K prefixes, but the total amount of unique prefixes
# might be 867342. We don't want to just stop at 800K, we want to wait a while until things have stablized
# similarly with filtering, we don't know the amount that should be received
# so we have to wait longer to make sure we've received a stable amount of prefixes
# for all cases we make sure that the target has recevied (but not accepted) as many prefixes as specified
# but in the end we want to wait until the monitor has received a stable number of prefixes
time_for_assurance = 20
# make sure it's stable but not wait as long as if we hadn't received
# at least as many prefixes as specified
if recved_checkpoint:
time_for_assurance = 5
if neighbors_checkpoint and last_recved_count >=time_for_assurance:
output_stats['recved']= recved
output_stats['tester_errors'] = tester_class.find_errors()
output_stats['tester_timeouts'] = tester_class.find_timeouts()
f.close() if f else None
# subract the last time_for_assurance seconds, it was done by this time, we were just making sure
# TODO: recaulate all min/max stats after removing these stats
# should move to always calculating based on bench_stats rather than while counting
if last_recved_count >= time_for_assurance:
print(f"last recevied: {last_recved_count}")
output_stats['elapsed'] = datetime.timedelta(seconds = int(output_stats['elapsed'].seconds) - time_for_assurance + 1)
bench_stats = bench_stats[0:len(bench_stats)-time_for_assurance]
o_s = finish_bench(args, output_stats, bench_stats, bench_start,target, m)
return o_s
if elapsed.seconds % 120 == 0 and elapsed.seconds > 1:
bench_prefix = f"{args.target}_{args.tester_type}_{args.prefix_num}_{args.neighbor_num}"
create_bench_graphs(bench_stats, prefix=bench_prefix)
if elapsed.seconds > 15 and recved_checkpoint == 0 and last_recved_count == 0 and recved == 0:
last_recved_count = 1_000_000 # make it artifically high so things fail quickly
# Too many of the same counts in a row, not progressing
# using 600 because in high load some stacks take this longer, or longer
# to process and we want to have good assurance it's really stuck
if last_recved_count >= 600 :
output_stats['recved']= recved
f.close() if f else None
output_stats['fail_msg'] = f"FAILED: stuck received count {recved} neighbors_checked {neighbors_checked}"
output_stats['tester_errors'] = tester_class.find_errors()
output_stats['tester_timeouts'] = tester_class.find_timeouts()
print("FAILED")
o_s = finish_bench(args, output_stats,bench_stats, bench_start,target, m, fail=True)
return o_s
def finish_bench(args, output_stats, bench_stats, bench_start,target, m, fail=False):
bench_stop = time.time()
output_stats['total_time'] = bench_stop - bench_start
m.stop_monitoring = True
target.stop_monitoring = True
stop_monitoring = True
del m
target_version = target.exec_version_cmd()
print_final_stats(args, target_version, output_stats)
o_s = create_output_stats(args, target_version, output_stats, fail)
print(stats_header())
print(','.join(map(str, o_s)))
print()
# it would be better to clean things up, but often I want to to investigate where things ended up
# remove_old_containers()
# remove_target_containers()
bench_prefix = f"{args.target}_{args.tester_type}_{args.prefix_num}_{args.neighbor_num}"
create_bench_graphs(bench_stats, prefix=bench_prefix)
return o_s
def print_final_stats(args, target_version, stats):
print(f"{args.target}: {target_version}")
print(f"Max cpu: {stats['max_cpu']:4.2f}, max mem: {mem_human(stats['max_mem'])}")
print(f"Min %idle {stats['min_idle']}, Min mem free {mem_human(stats['min_free'])}")
print(f"Time since first received prefix: {stats['elapsed'].seconds - stats['first_received_time'].seconds}")
print(f"total time: {stats['total_time']:.2f}s")
print(f"elasped time: {stats['elapsed'].seconds}s")
print(f"tester errors: {stats['tester_errors']}")
print(f"tester timeouts: {stats['tester_timeouts']}")
print()
def stats_header():
return("name, target, version, peers, prefixes per peer, required, received, monitor (s), elapsed (s), prefix received (s), testers (s), total time, max cpu %, max mem (GB), min idle%, min free mem (GB), flags, date,cores,Mem (GB), tester errors, failed, MSG, filters")
def create_output_stats(args, target_version, stats, fail=False):
e = stats['elapsed'].seconds
f = stats['first_received_time'].seconds
d = datetime.date.today().strftime("%Y-%m-%d")
if 'label' in args and args.label:
name = args.label
else:
name = args.target
out = [name, args.target, target_version, str(args.neighbor_num), str(args.prefix_num)]
out.extend([stats['required'], stats['recved']])
out.extend([stats['monitor_wait_time'], e, f , e-f, float(format(stats['total_time'], ".2f"))])
out.extend([round(stats['max_cpu']), float(format(stats['max_mem']/1024/1024/1024, ".3f"))])
out.extend ([round(stats['min_idle']), float(format(stats['min_free']/1024/1024/1024, ".3f"))])
out.extend(['-s' if args.single_table else '', d, str(stats['cores']), mem_human(stats['memory'])])
out.extend([stats['tester_errors'],stats['tester_timeouts']])
out.extend(['FAILED']) if fail else out.extend([''])
out.extend([stats['fail_msg']]) if 'fail_msg' in stats else out.extend([''])
out.extend([args.filter_test]) if 'filter_test' in args and args.filter_test else out.extend([''])
return out
def create_ts_graph(bench_stats, stat_index=1, filename='ts.png', ylabel='%cpu', diviser=1):
plt.figure()
#bench_stats.pop(0)
data = np.array(bench_stats)
plt.plot(data[:,0], data[:,stat_index]/diviser)
#don't want to see 0 element of data, not an accurate measure of what's happening
#plt.xlim([1, len(data)])
plt.ylabel(ylabel)
plt.xlabel('elapsed seconds')
plt.show()
plt.savefig(filename)
plt.close()
plt.cla()
plt.clf()
def create_bench_graphs(bench_stats, prefix='ts_data'):
create_ts_graph(bench_stats, filename=f"{prefix}_cpu.png")
create_ts_graph(bench_stats, stat_index=2, filename=f"{prefix}_mem_used", ylabel="GB", diviser=1024*1024*1024)
create_ts_graph(bench_stats, stat_index=3, filename=f"{prefix}_mon_received", ylabel='prefixes')
create_ts_graph(bench_stats, stat_index=4, filename=f"{prefix}_neighbors", ylabel='neighbors')
create_ts_graph(bench_stats, stat_index=5, filename=f"{prefix}_machine_idle", ylabel="%")
create_ts_graph(bench_stats, stat_index=6, filename=f"{prefix}_free_mem", ylabel="GB", diviser=1024*1024*1024)
def create_graph(stats, test_name='total time', stat_index=8, test_file='total_time.png', ylabel='seconds'):
labels = {}
data = defaultdict(list)
try:
for stat in stats:
labels[stat[0]] = True
key = f"{stat[3]}n_{stat[4]}p"
if stat[24]:
key =f"{key}_{stat[24]}"
if len(stat) > 23 and stat[22] == 'FAILED':# this means that it failed for some reason
data[key].append(0)
else:
data[key].append(float(stat[stat_index]))
except IndexError as e:
print(e)
print(f"stat line failed: {stat}")
print(f"stat_index {stat_index}")
exit(-1)
x = np.arange(len(labels))
bars = len(data)
width = 0.7 / bars
plt.figure()
for i, d in enumerate(data):
plt.bar(x -0.2+i*width, data[d], width=width, label=d)
plt.ylabel(ylabel)
#plt.xlabel('neighbors_prefixes')
plt.title(test_name)
plt.xticks(x,labels.keys())
plt.legend()
plt.show()
plt.savefig(test_file)
def batch(args):
""" runs several tests together, produces all the stats together and creates graphs
requires a yaml file to describe the batch of tests to run
it iterates through a list of targets, number of neighbors and number of prefixes
other variables can be set, but not iterated through
"""
with open(args.batch_config, 'r') as f:
batch_config = yaml.safe_load(f)
for test in batch_config['tests']:
results = []
for n in test['neighbors']:
for p in test['prefixes']:
for filter in test['filter_test']:
for t in test['targets']:
a = argparse.Namespace(**vars(args))
a.func = bench
a.image = None
a.output = None
a.target = t['name']
a.prefix_num = p
a.neighbor_num = n
a.filter_test = filter if filter != 'None' else None
# read any config attribute that was specified in the yaml batch file
a.local_address_prefix = t['local_address_prefix'] if 'local_address_prefix' in t else '10.10.0.0/16'
for field in ['single_table', 'docker_network_name', 'repeat', 'file', 'target_local_address',
'label', 'target_local_address', 'monitor_local_address', 'target_router_id',
'monitor_router_id', 'target_config_file', 'filter_type','mrt_injector', 'mrt_file',
'tester_type', 'license_file']:
setattr(a, field, t[field]) if field in t else setattr(a, field, None)
for field in ['as_path_list_num', 'prefix_list_num', 'community_list_num', 'ext_community_list_num']:
setattr(a, field, t[field]) if field in t else setattr(a, field, 0)
results.append(bench(a))
# update this each time in case something crashes
with open(f"{test['name']}.csv", 'w') as f:
f.write(stats_header() + '\n')
for stat in results:
f.write(','.join(map(str, stat)) + '\n')
print()
print(stats_header())
for stat in results:
print(','.join(map(str, stat)))
create_batch_graphs(results, test['name'])
def create_batch_graphs(results, name):
create_graph(results, test_name='total time', stat_index=11, test_file=f"bgperf_{name}_total_time.png")
create_graph(results, test_name='elapsed', stat_index=8, test_file=f"bgperf_{name}_elapsed.png")
create_graph(results, test_name='neighbor', stat_index=9, test_file=f"bgperf_{name}_neighbor.png")
create_graph(results, test_name='route reception', stat_index=10, test_file=f"bgperf_{name}_route_reception.png")
create_graph(results, test_name='max cpu', stat_index=12, test_file=f"bgperf_{name}_max_cpu.png", ylabel="%")
create_graph(results, test_name='max mem', stat_index=13, test_file=f"bgperf_{name}_max_mem.png", ylabel="GB")
create_graph(results, test_name='min idle', stat_index=14, test_file=f"bgperf_{name}_min_idle.png", ylabel="%")
create_graph(results, test_name='min free mem', stat_index=15, test_file=f"bgperf_{name}_min_free.png", ylabel="GB")
create_graph(results, test_name='tester errors', stat_index=20, test_file=f"bgperf_{name}_tester_error.png", ylabel="errors")
create_graph(results, test_name='prefixes at monitor', stat_index=6, test_file=f"bgperf_{name}_monitor_prefixes.png")
def mem_human(v):
if v > 1024 * 1024 * 1024:
return '{0:.2f}GB'.format(float(v) / (1024 * 1024 * 1024))
elif v > 1024 * 1024:
return '{0:.2f}MB'.format(float(v) / (1024 * 1024))
elif v > 1024:
return '{0:.2f}KB'.format(float(v) / 1024)
else:
return '{0:.2f}B'.format(float(v))
def get_hardware_info():
cores = os.cpu_count()
mem = virtual_memory().total
return cores, mem
def gen_conf(args):
''' This creates the scenario.yml that other things need to read to produce device config
'''
neighbor_num = args.neighbor_num
prefix = args.prefix_num
as_path_list = args.as_path_list_num
prefix_list = args.prefix_list_num
community_list = args.community_list_num
ext_community_list = args.ext_community_list_num
tester_type = args.tester_type
local_address_prefix = netaddr.IPNetwork(args.local_address_prefix)
if args.target_local_address:
target_local_address = netaddr.IPAddress(args.target_local_address)
else:
target_local_address = local_address_prefix.broadcast - 1
if args.monitor_local_address:
monitor_local_address = netaddr.IPAddress(args.monitor_local_address)
else:
monitor_local_address = local_address_prefix.ip + 2
if args.target_router_id:
target_router_id = netaddr.IPAddress(args.target_router_id)
else:
target_router_id = target_local_address
if args.monitor_router_id:
monitor_router_id = netaddr.IPAddress(args.monitor_router_id)
else:
monitor_router_id = monitor_local_address
filter_test = args.filter_test if 'filter_test' in args else None
conf = {}
conf['local_prefix'] = str(local_address_prefix)
conf['target'] = {
'as': 1000,
'router-id': str(target_router_id),
'local-address': str(target_local_address),
'single-table': args.single_table,
}
if args.license_file:
conf['target']['license_file'] = args.license_file
if args.target_config_file:
conf['target']['config_path'] = args.target_config_file
if filter_test:
conf['target']['filter_test'] = filter_test
print(f"FILTERING: {filter_test}")
conf['monitor'] = {
'as': 1001,
'router-id': str(monitor_router_id),
'local-address': str(monitor_local_address),
'check-points': [prefix * neighbor_num],
}
mrt_injector = None
if tester_type == 'gobgp' or tester_type == 'bgpdump2':
mrt_injector = tester_type
if mrt_injector:
conf['monitor']['check-points'] = [prefix]
if mrt_injector == 'gobgp': #gobgp doesn't send everything with mrt
conf['monitor']['check-points'][0] = int(conf['monitor']['check-points'][0] * 0.93)
else: #args.target == 'bird': # bird seems to reject severalhandfuls of routes
conf['monitor']['check-points'][0] = int(conf['monitor']['check-points'][0] * 0.99)
it = netaddr.iter_iprange('90.0.0.0', '100.0.0.0')
conf['policy'] = {}
assignment = []
if prefix_list > 0:
name = 'p1'
conf['policy'][name] = {
'match': [{
'type': 'prefix',
'value': list('{0}/32'.format(ip) for ip in islice(it, prefix_list)),
}],
}
assignment.append(name)
if as_path_list > 0:
name = 'p2'
conf['policy'][name] = {
'match': [{
'type': 'as-path',
'value': list(range(10000, 10000 + as_path_list)),
}],
}
assignment.append(name)
if community_list > 0:
name = 'p3'
conf['policy'][name] = {
'match': [{
'type': 'community',
'value': list('{0}:{1}'.format(int(i/(1<<16)), i%(1<<16)) for i in range(community_list)),
}],
}
assignment.append(name)
if ext_community_list > 0:
name = 'p4'
conf['policy'][name] = {
'match': [{
'type': 'ext-community',
'value': list('rt:{0}:{1}'.format(int(i/(1<<16)), i%(1<<16)) for i in range(ext_community_list)),
}],
}
assignment.append(name)
neighbors = {}
configured_neighbors_cnt = 0
for i in range(3, neighbor_num+3+2):
if configured_neighbors_cnt == neighbor_num:
break
curr_ip = local_address_prefix.ip + i
if curr_ip in [target_local_address, monitor_local_address]:
print(('skipping tester\'s neighbor with IP {} because it collides with target or monitor'.format(curr_ip)))
continue
router_id = str(local_address_prefix.ip + i)
neighbors[router_id] = {
'as': 1000 + i,
'router-id': router_id,
'local-address': router_id,
'paths': '${{gen_paths({0})}}'.format(prefix),
'count': prefix,
'check-points': prefix,
'filter': {
args.filter_type: assignment,
},
}
configured_neighbors_cnt += 1
print(f"Tester Type: {tester_type}")
if tester_type == 'exa' or tester_type == 'bird':
conf['testers'] = [{
'name': 'tester',
'type': tester_type,