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Add benchmarks comparing 3proxy versions and other proxies

Browse Source 
bench/build.sh builds git refs or the working tree, each with the
Makefile it shipped with. bench/bench.py runs the client, the proxy and
the origin in network namespaces of their own, linked by veth pairs,
and in cgroups pinned to separate CPUs, then measures TCP relaying
(iperf3) and HTTP proxying (wrk) for 3proxy builds, nginx, haproxy and
the kernel forwarding alone, reporting throughput, latency and the
proxy's CPU time and peak memory per unit of work.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Vladimir Dubrovin 2026-10-11 19:03:09 +03:00
parent 9ca0b84774
commit baea44477e
4 changed files with 726 additions and 0 deletions
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bin/
results/

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# Benchmarks
Compares the speed and the cost of 3proxy versions, and of other proxies doing
the same job, on Linux.
## How the measurement is isolated
The client, the proxy and the origin each run in a network namespace of
their own, linked by veth pairs:
```
[bcli] 10.0.1.2 --veth-- 10.0.1.1 [bprx] 10.0.2.1 --veth-- 10.0.2.2 [bsrv]
wrk, iperf3 the proxy nginx (files), iperf3 -s
```
so they share no loopback, and a packet crosses the same path whichever proxy
is measured. Each role also runs in a cgroup of its own pinned to separate
CPUs (`--cpus`, default `cli=0-3,prx=4-5,srv=6-7`), so one does not take CPU
from another, and RPS steers what each veth receives to the receiver's CPUs.
The proxy's cgroup is created anew for every run, which is what makes its
CPU time and peak memory readable on their own.
Every proxy is given the same CPUs: nginx gets as many workers and haproxy as
many threads as the proxy cgroup has CPUs; 3proxy runs a thread per
connection inside the same cpuset. Logging is off everywhere.
`none` is no proxy at all: the client reaches the origin through the proxy
namespace with the kernel forwarding, the upper bound for every scenario.
## What is reported
For every run, in a CSV under `bench/results/`:
| column | meaning |
|---|---|
| `gbit`, `rate` | throughput, requests per second for HTTP |
| `p50_ms`, `p99_ms` | latency from wrk (closed loop: compare at equal load only) |
| `prx_cpu_s` | CPU seconds the proxy used, all its threads and processes |
| `cpu_s_per_gb`, `cpu_us_per_req` | the proxy's cost per unit of work: the fairest figure, least affected by which side was the limit |
| `peak_mb` | the proxy's peak memory |
| `cli_util`, `prx_util`, `srv_util` | how busy each role's CPUs were: a client or origin near 100% means the result says nothing about the proxy |
| `errors`, `retrans` | socket errors and non-2xx answers; TCP retransmissions in the stream scenarios |
Repetitions rotate the order of the proxies, so drift over time (heat, the
host) falls on all of them alike; the summary gives medians.
## Scenarios
| name | load |
|---|---|
| `stream1`, `stream1-down` | one iperf3 stream through a TCP relay (3proxy `tcppm`, nginx `stream`, haproxy `mode tcp`), upload and download |
| `stream16` | sixteen streams |
| `http-ka-1k`, `http-ka-1m` | HTTP over kept-alive connections through an HTTP proxy (absolute URIs), 1 KB and 1 MB answers |
| `http-close-1k` | a new connection for every request |
nginx is not a forward proxy: it answers absolute URIs by passing them to its
upstream, which is the origin here, and it has no CONNECT or SOCKS, so only
these scenarios compare like with like.
## Running
Root, `iproute2`, `iperf3`, `wrk`, `nginx` (with the stream module:
`libnginx-mod-stream` on Debian and Ubuntu) and, to compare with it,
`haproxy`.
```sh
bench/build.sh 0.9.9.1 1.0.1 # tags into bench/bin/
NAME=devel bench/build.sh . # the working tree
CC="gcc -fcommon" bench/build.sh 0.8.13 # before 0.9, newer gcc
sudo bench/bench.py \
--proxy none \
--proxy 3proxy:bench/bin/3proxy-1.0.1 \
--proxy 3proxy:bench/bin/3proxy-devel \
--proxy "3proxy:bench/bin/3proxy-0.9.4:-s0" \
--proxy nginx --proxy haproxy
```
After the binary, a 3proxy entry can carry options for both its services:
`-s0` keeps 0.9.0 to 0.9.8, which use splice() by default, from using it, and
`-ocTCP_NODELAY -osTCP_NODELAY` turns Nagle's algorithm off on the client and
server sockets.
`--scenario` picks scenarios, `--reps` and `--duration` set the repetitions
and their length, `--netem "delay 1ms rate 10gbit"` puts a slower, longer link
between the client and the proxy, `--mtu` changes the links' MTU.
## Caveats
* A virtual machine cannot pin its virtual CPUs to physical ones, so its
absolute numbers move between sessions: compare within one session, and
keep absolute figures for real hardware.
* wrk measures latency in a closed loop, so a slower proxy is also offered
less load; compare latencies only between runs of similar throughput.
* Versions are built with the Makefile they shipped with, so compiler flags
differ between them (0.8 builds with `-O2`, 0.9.9 and later with
`-O3 -flto`) as they did for their users.

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#!/usr/bin/env python3
"""Compares the speed and the cost of proxies on Linux: 3proxy versions, and
other servers doing the same job.
The client, the proxy and the origin each run in a network namespace of their
own, linked by veth pairs, and in a cgroup of their own pinned to separate
CPUs, so they neither share a loopback nor take CPU from each other, and the
proxy's CPU time and memory can be read on their own. See README.md.
Needs root, iproute2, iperf3, wrk and nginx (the origin); haproxy only when
it is one of the proxies compared.
sudo bench/bench.py --proxy 3proxy:bench/bin/3proxy-1.0.1 \\
--proxy 3proxy:bench/bin/3proxy-devel --proxy nginx --proxy none
"""
import argparse
import csv
import datetime
import json
import os
import re
import resource
import shutil
import signal
import statistics
import subprocess
import sys
import tempfile
import time
CG = "/sys/fs/cgroup/3proxy-bench"
# client 10.0.1.2 -- 10.0.1.1 proxy 10.0.2.1 -- 10.0.2.2 origin
CLI_ADDR, PRX_IN, PRX_OUT, SRV_ADDR = "10.0.1.2", "10.0.1.1", "10.0.2.1", "10.0.2.2"
HTTP_PORT, TCP_PORT, ORIGIN_HTTP, ORIGIN_TCP = 3128, 5201, 8080, 5201
FILES = {"1k": 1024, "100k": 100 * 1024, "1m": 1024 * 1024}
# name: (kind, parameters)
SCENARIOS = {
"stream1": ("stream", {"streams": 1}),
"stream16": ("stream", {"streams": 16}),
"stream1-down": ("stream", {"streams": 1, "reverse": True}),
"http-ka-1k": ("http", {"file": "1k", "conns": 64}),
"http-ka-1m": ("http", {"file": "1m", "conns": 16}),
"http-close-1k": ("http", {"file": "1k", "conns": 64, "close": True}),
}
def sh(cmd, check=True, **kw):
return subprocess.run(cmd, shell=True, check=check, text=True,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT, **kw).stdout
def cpulist(spec):
cpus = []
for part in spec.split(","):
a, _, b = part.partition("-")
cpus.extend(range(int(a), int(b or a) + 1))
return cpus
def cpumask(spec):
return "%x" % sum(1 << c for c in cpulist(spec))
# --- namespaces --------------------------------------------------------------
def net_up(args):
net_down()
for ns in ("bcli", "bprx", "bsrv"):
sh(f"ip netns add {ns}")
sh(f"ip -n {ns} link set lo up")
sh("ip link add bc0 netns bcli type veth peer name bp0 netns bprx")
sh("ip link add bp1 netns bprx type veth peer name bs0 netns bsrv")
for ns, dev, addr in (("bcli", "bc0", CLI_ADDR), ("bprx", "bp0", PRX_IN),
("bprx", "bp1", PRX_OUT), ("bsrv", "bs0", SRV_ADDR)):
sh(f"ip -n {ns} addr add {addr}/24 dev {dev}")
sh(f"ip -n {ns} link set {dev} mtu {args.mtu} up")
# the direct baseline goes through the proxy namespace, routed by the
# kernel
sh(f"ip -n bcli route add 10.0.2.0/24 via {PRX_IN}")
sh(f"ip -n bsrv route add 10.0.1.0/24 via {PRX_OUT}")
sh("ip netns exec bprx sysctl -qw net.ipv4.ip_forward=1")
for ns in ("bcli", "bprx", "bsrv"):
sh(f"ip netns exec {ns} sysctl -qw net.core.somaxconn=65535 "
"net.ipv4.tcp_max_syn_backlog=65535 net.ipv4.tcp_tw_reuse=1 "
"net.ipv4.ip_local_port_range='1024 65535'")
# A veth hands what it receives to the CPU that sent it; steer it to the
# receiver's own CPUs instead.
for ns, dev, role in (("bcli", "bc0", "cli"), ("bprx", "bp0", "prx"),
("bprx", "bp1", "prx"), ("bsrv", "bs0", "srv")):
sh(f"ip netns exec {ns} sh -c 'echo {cpumask(args.cpus[role])} "
f"> /sys/class/net/{dev}/queues/rx-0/rps_cpus'", check=False)
if args.netem:
for ns, dev in (("bcli", "bc0"), ("bprx", "bp0")):
sh(f"ip netns exec {ns} tc qdisc add dev {dev} root netem {args.netem}")
def net_down():
for ns in ("bcli", "bprx", "bsrv"):
sh(f"ip netns del {ns}", check=False)
# --- cgroups -----------------------------------------------------------------
def cg_write(path, value):
with open(path, "w") as f:
f.write(value)
def cg_read(path):
with open(path) as f:
return f.read()
def cg_up(args):
os.makedirs(CG, exist_ok=True)
cg_write("/sys/fs/cgroup/cgroup.subtree_control", "+cpuset +cpu +memory")
cg_write(f"{CG}/cgroup.subtree_control", "+cpuset +cpu +memory")
for role in ("cli", "srv"):
cg_make(role, args.cpus[role])
def cg_make(role, cpus):
path = f"{CG}/{role}"
os.makedirs(path, exist_ok=True)
cg_write(f"{path}/cpuset.cpus", cpus)
return path
def cg_remove(role):
path = f"{CG}/{role}"
if not os.path.isdir(path):
return
for _ in range(50):
try:
os.rmdir(path)
return
except OSError:
time.sleep(0.1)
def cg_down():
for role in ("cli", "prx", "srv"):
cg_remove(role)
try:
os.rmdir(CG)
except OSError:
pass
def cg_usage(role):
"""CPU seconds used so far by everything in the cgroup."""
for line in cg_read(f"{CG}/{role}/cpu.stat").splitlines():
name, value = line.split()
if name == "usage_usec":
return int(value) / 1e6
return 0.0
def cg_peak(role):
try:
return int(cg_read(f"{CG}/{role}/memory.peak")) / 2**20
except OSError:
return float("nan")
# --- processes ---------------------------------------------------------------
def spawn(ns, role, argv, log):
"""Start a process in a namespace and a cgroup; threads it starts stay
there with it."""
procs = f"{CG}/{role}/cgroup.procs"
def enter():
cg_write(procs, str(os.getpid()))
resource.setrlimit(resource.RLIMIT_NOFILE, (1048576, 1048576))
os.setsid()
return subprocess.Popen(["ip", "netns", "exec", ns] + argv, stdout=log,
stderr=subprocess.STDOUT, preexec_fn=enter)
def run_in(ns, role, argv, timeout):
p = spawn(ns, role, argv, subprocess.PIPE)
out, _ = p.communicate(timeout=timeout)
return out.decode("utf-8", "replace")
def stop(p):
if p and p.poll() is None:
try:
os.killpg(p.pid, signal.SIGTERM)
p.wait(timeout=5)
except (ProcessLookupError, subprocess.TimeoutExpired):
try:
os.killpg(p.pid, signal.SIGKILL)
except ProcessLookupError:
pass
p.wait()
def wait_port(ns, addr, port, timeout=10):
deadline = time.time() + timeout
while time.time() < deadline:
# /dev/tcp is bash's
if subprocess.run(["ip", "netns", "exec", ns, "bash", "-c",
f"exec 3<>/dev/tcp/{addr}/{port}"],
stderr=subprocess.DEVNULL).returncode == 0:
return True
time.sleep(0.1)
return False
# --- the origin --------------------------------------------------------------
def origin_up(args, work):
www = os.path.join(work, "www")
os.makedirs(www, exist_ok=True)
for name, size in FILES.items():
with open(os.path.join(www, name), "wb") as f:
f.write(b"x" * size)
n = len(cpulist(args.cpus["srv"]))
conf = os.path.join(work, "origin.conf")
with open(conf, "w") as f:
f.write(f"""daemon off;
worker_processes {n};
pid {work}/origin.pid;
error_log {work}/origin.err;
worker_rlimit_nofile 1048576;
events {{ worker_connections 65536; }}
http {{
access_log off;
sendfile on;
tcp_nopush on;
keepalive_requests 1000000;
keepalive_timeout 120s;
server {{
listen {SRV_ADDR}:{ORIGIN_HTTP} backlog=65535 reuseport;
root {www};
default_type application/octet-stream;
}}
}}
""")
log = open(os.path.join(work, "origin.out"), "w")
procs = [spawn("bsrv", "srv", ["nginx", "-c", conf, "-p", work], log),
spawn("bsrv", "srv", ["iperf3", "-s", "-B", SRV_ADDR, "-p", str(ORIGIN_TCP)], log)]
if not (wait_port("bsrv", SRV_ADDR, ORIGIN_HTTP) and wait_port("bsrv", SRV_ADDR, ORIGIN_TCP)):
sys.exit("the origin did not start, see " + work)
return procs
# --- proxies -----------------------------------------------------------------
def proxy_conf(kind, work, ncpu, label, opts=""):
"""Configuration for one proxy: an HTTP proxy on HTTP_PORT and a TCP relay
on TCP_PORT, both towards the origin. Returns the argv. opts are added to
both 3proxy services, e.g. -s0 to keep a version from using splice()."""
if kind == "3proxy":
conf = os.path.join(work, f"{label}.cfg")
with open(conf, "w") as f:
f.write(f"""maxconn 100000
auth none
proxy {opts} -i{PRX_IN} -e{PRX_OUT} -p{HTTP_PORT}
tcppm {opts} -i{PRX_IN} -e{PRX_OUT} {TCP_PORT} {SRV_ADDR} {ORIGIN_TCP}
""")
return [conf]
if kind == "nginx":
conf = os.path.join(work, f"{label}.conf")
with open(conf, "w") as f:
# distributions build the stream module as a dynamic one
stream = "/usr/lib/nginx/modules/ngx_stream_module.so"
load = f"load_module {stream};\n" if os.path.exists(stream) else ""
f.write(f"""{load}daemon off;
worker_processes {ncpu};
pid {work}/{label}.pid;
error_log {work}/{label}.err;
worker_rlimit_nofile 1048576;
events {{ worker_connections 65536; }}
http {{
access_log off;
upstream origin {{ server {SRV_ADDR}:{ORIGIN_HTTP}; keepalive 1024; }}
server {{
listen {PRX_IN}:{HTTP_PORT} backlog=65535 reuseport;
keepalive_requests 1000000;
location / {{
proxy_pass http://origin;
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_bind {PRX_OUT};
}}
}}
}}
stream {{
server {{
listen {PRX_IN}:{TCP_PORT} backlog=65535 reuseport;
proxy_pass {SRV_ADDR}:{ORIGIN_TCP};
proxy_bind {PRX_OUT};
}}
}}
""")
return ["-c", conf, "-p", work]
if kind == "haproxy":
conf = os.path.join(work, f"{label}.cfg")
with open(conf, "w") as f:
f.write(f"""global
nbthread {ncpu}
maxconn 200000
defaults
timeout connect 5s
timeout client 60s
timeout server 60s
frontend http
mode http
bind {PRX_IN}:{HTTP_PORT}
option http-keep-alive
default_backend origin
backend origin
mode http
http-reuse always
source {PRX_OUT}
server origin {SRV_ADDR}:{ORIGIN_HTTP}
listen tcp
mode tcp
bind {PRX_IN}:{TCP_PORT}
source {PRX_OUT}
server origin {SRV_ADDR}:{ORIGIN_TCP}
""")
return ["-f", conf]
raise ValueError(kind)
class Proxy:
def __init__(self, spec):
kind, _, path = spec.partition(":")
self.kind = kind
self.opts = ""
if kind == "3proxy":
path, _, self.opts = path.partition(":")
if not path:
sys.exit("--proxy 3proxy:<binary>[:<service options>]")
self.binary = os.path.abspath(path)
self.label = os.path.basename(path) + (self.opts.replace(" ", "") if self.opts else "")
elif kind in ("nginx", "haproxy"):
self.binary = path or shutil.which(kind)
self.label = kind
elif kind == "none":
self.binary = None
self.label = "direct"
else:
sys.exit("unknown proxy " + spec)
def start(self, args, work):
cg_remove("prx")
cg_make("prx", args.cpus["prx"])
if self.kind == "none":
return None
argv = [self.binary] + proxy_conf(self.kind, work, len(cpulist(args.cpus["prx"])),
self.label, self.opts)
log = open(os.path.join(work, self.label + ".out"), "a")
p = spawn("bprx", "prx", argv, log)
if not (wait_port("bcli", PRX_IN, HTTP_PORT) and wait_port("bcli", PRX_IN, TCP_PORT)):
stop(p)
sys.exit(f"{self.label} did not start, see {work}")
return p
# --- load --------------------------------------------------------------------
WRK_SCRIPT = """
local path, close = "%s", %s
local headers = {["Host"] = "%s:%d"}
if close then headers["Connection"] = "close" end
local req = wrk.format("GET", path, headers)
request = function() return req end
"""
UNITS = {"": 1, "k": 1e3, "K": 1e3, "M": 1e6, "G": 1e9, "KB": 2**10, "MB": 2**20,
"GB": 2**30, "B": 1}
def to_ms(text):
m = re.match(r"([\d.]+)(us|ms|s|m)", text)
v, u = float(m.group(1)), m.group(2)
return v * {"us": 1e-3, "ms": 1, "s": 1e3, "m": 6e4}[u]
def run_http(proxy, params, args, work):
direct = proxy.kind == "none"
host = SRV_ADDR if direct else PRX_IN
port = ORIGIN_HTTP if direct else HTTP_PORT
path = "/" + params["file"]
if not direct:
path = f"http://{SRV_ADDR}:{ORIGIN_HTTP}{path}"
script = os.path.join(work, "wrk.lua")
with open(script, "w") as f:
f.write(WRK_SCRIPT % (path, "true" if params.get("close") else "false",
SRV_ADDR, ORIGIN_HTTP))
threads = len(cpulist(args.cpus["cli"]))
conns = max(params["conns"], threads)
out = run_in("bcli", "cli", ["wrk", "-t", str(threads), "-c", str(conns),
"-d", f"{args.duration}s", "--latency", "-s", script,
f"http://{host}:{port}/"], args.duration + 30)
res = {"raw": out}
m = re.search(r"(\d+) requests in", out)
res["requests"] = int(m.group(1)) if m else 0
m = re.search(r"Requests/sec:\s+([\d.]+)", out)
res["rate"] = float(m.group(1)) if m else 0.0
m = re.search(r"Transfer/sec:\s+([\d.]+)(\w+)", out)
res["gbit"] = float(m.group(1)) * UNITS[m.group(2)] * 8 / 1e9 if m else 0.0
for pct in ("50", "99"):
m = re.search(rf"^\s+{pct}%\s+(\S+)", out, re.M)
res[f"p{pct}_ms"] = to_ms(m.group(1)) if m else float("nan")
errors = 0
m = re.search(r"Socket errors: connect (\d+), read (\d+), write (\d+), timeout (\d+)", out)
if m:
errors += sum(int(x) for x in m.groups())
m = re.search(r"Non-2xx or 3xx responses: (\d+)", out)
if m:
errors += int(m.group(1))
res["errors"] = errors
res["retrans"] = 0
res["bytes"] = res["gbit"] * 1e9 / 8 * args.duration
return res
def run_stream(proxy, params, args, work):
direct = proxy.kind == "none"
host = SRV_ADDR if direct else PRX_IN
port = ORIGIN_TCP if direct else TCP_PORT
argv = ["iperf3", "-c", host, "-p", str(port), "-t", str(args.duration),
"-P", str(params["streams"]), "-J"]
if params.get("reverse"):
argv.append("-R")
out = run_in("bcli", "cli", argv, args.duration + 30)
res = {"raw": out, "rate": float("nan"), "p50_ms": float("nan"),
"p99_ms": float("nan"), "requests": 0, "errors": 0, "retrans": 0}
try:
j = json.loads(out)
s = j["end"]["sum_received"]
res["gbit"] = s["bits_per_second"] / 1e9
res["bytes"] = s["bytes"]
res["retrans"] = j["end"].get("sum_sent", {}).get("retransmits", 0)
if "error" in j:
res["errors"] = 1
except (ValueError, KeyError):
res["gbit"], res["bytes"], res["errors"] = 0.0, 0, 1
return res
def measure(proxy, scenario, args, work):
kind, params = SCENARIOS[scenario]
p = proxy.start(args, work)
try:
time.sleep(0.5)
before = {r: cg_usage(r) for r in ("cli", "prx", "srv")}
t0 = time.time()
res = (run_http if kind == "http" else run_stream)(proxy, params, args, work)
wall = time.time() - t0
after = {r: cg_usage(r) for r in ("cli", "prx", "srv")}
res["peak_mb"] = cg_peak("prx")
finally:
stop(p)
for r in ("cli", "prx", "srv"):
used = after[r] - before[r]
res[f"{r}_cpu_s"] = used
# share of the CPUs given to that role, to see which side was the limit
res[f"{r}_util"] = used / (wall * len(cpulist(args.cpus[r])))
gb = res["bytes"] / 1e9
res["cpu_s_per_gb"] = res["prx_cpu_s"] / gb if gb else float("nan")
res["cpu_us_per_req"] = (res["prx_cpu_s"] * 1e6 / res["requests"]
if res["requests"] else float("nan"))
return res
# --- main --------------------------------------------------------------------
FIELDS = ["proxy", "scenario", "rep", "gbit", "rate", "p50_ms", "p99_ms", "errors", "retrans",
"prx_cpu_s", "cpu_s_per_gb", "cpu_us_per_req", "peak_mb",
"cli_util", "prx_util", "srv_util"]
def summary(rows):
keys = []
for r in rows:
if (r["proxy"], r["scenario"]) not in keys:
keys.append((r["proxy"], r["scenario"]))
cols = ["gbit", "rate", "p99_ms", "cpu_s_per_gb", "cpu_us_per_req", "peak_mb",
"prx_util", "cli_util", "srv_util", "errors"]
print("\nmedians (" + ", ".join(cols) + ")")
print("%-24s %-14s " % ("proxy", "scenario") + " ".join("%10s" % c[:10] for c in cols))
for proxy, scenario in sorted(keys, key=lambda k: (k[1], k[0])):
sel = [r for r in rows if r["proxy"] == proxy and r["scenario"] == scenario]
vals = []
for c in cols:
xs = [r[c] for r in sel if r[c] == r[c]]
vals.append("%10.3g" % statistics.median(xs) if xs else "%10s" % "-")
print("%-24s %-14s " % (proxy, scenario) + " ".join(vals))
def main():
ap = argparse.ArgumentParser(description=__doc__.split("\n\n")[0])
ap.add_argument("--proxy", action="append", required=True,
help="3proxy:<binary>[:<service options>], nginx[:<binary>], haproxy[:<binary>] "
"or none (the kernel routing, an upper bound); repeat")
ap.add_argument("--scenario", action="append", choices=sorted(SCENARIOS),
help="default: all")
ap.add_argument("--reps", type=int, default=3)
ap.add_argument("--duration", type=int, default=10, help="seconds per run")
ap.add_argument("--cpus", default="cli=0-3,prx=4-5,srv=6-7",
help="CPUs per role (default %(default)s)")
ap.add_argument("--mtu", type=int, default=1500)
ap.add_argument("--netem", help='netem on the client link, e.g. "delay 1ms rate 10gbit"')
ap.add_argument("--out", default="bench/results", help="directory for the CSV and logs")
args = ap.parse_args()
if os.geteuid():
sys.exit("needs root")
args.cpus = dict(x.split("=") for x in args.cpus.split(","))
proxies = [Proxy(s) for s in args.proxy]
scenarios = args.scenario or list(SCENARIOS)
stamp = datetime.datetime.now().strftime("%Y%m%d-%H%M%S")
os.makedirs(args.out, exist_ok=True)
work = tempfile.mkdtemp(prefix="3proxy-bench-")
os.chmod(work, 0o755)
csvpath = os.path.join(args.out, f"{stamp}.csv")
rawpath = os.path.join(args.out, f"{stamp}.raw.txt")
with open(os.path.join(args.out, f"{stamp}.env.txt"), "w") as f:
f.write(" ".join(sys.argv) + "\n")
f.write(sh("uname -a; lscpu | head -20; nproc; "
"cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 2>/dev/null; "
"iperf3 --version | head -1; wrk -v 2>&1 | head -1; nginx -v 2>&1; "
"haproxy -v 2>/dev/null | head -1", check=False))
rows = []
origin = []
try:
net_up(args)
cg_up(args)
origin = origin_up(args, work)
with open(csvpath, "w", newline="") as f, open(rawpath, "w") as raw:
w = csv.DictWriter(f, FIELDS, extrasaction="ignore")
w.writeheader()
# Every repetition runs each proxy once, rotating the order, so a
# drift over time is shared by all of them.
for rep in range(args.reps):
for scenario in scenarios:
order = proxies[rep % len(proxies):] + proxies[:rep % len(proxies)]
for proxy in order:
res = measure(proxy, scenario, args, work)
res.update(proxy=proxy.label, scenario=scenario, rep=rep)
rows.append(res)
w.writerow(res)
f.flush()
raw.write(f"=== {proxy.label} {scenario} {rep}\n{res['raw']}\n")
print("%-24s %-14s rep %d: %7.2f Gbit/s %10.0f req/s proxy cpu %5.2fs "
"util cli %3.0f%% prx %3.0f%% srv %3.0f%% errors %d" % (
proxy.label, scenario, rep, res["gbit"],
res["rate"] if res["rate"] == res["rate"] else 0,
res["prx_cpu_s"], res["cli_util"] * 100,
res["prx_util"] * 100, res["srv_util"] * 100,
res["errors"]), flush=True)
finally:
for p in origin:
stop(p)
cg_down()
net_down()
summary(rows)
print(f"\n{csvpath}\nlogs and configurations: {work}")
if __name__ == "__main__":
main()

52
bench/build.sh Normal file
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#!/bin/sh
# Builds 3proxy versions for comparison, each from a clean tree and with the
# Makefile it shipped with, into bench/bin/3proxy-<name>.
#
# bench/build.sh 0.9.9.1 1.0.1 devel git refs (tags, branches, commits)
# bench/build.sh . the working tree, uncommitted
# changes included, as "worktree"
# NAME=devel-splice EXTRA_CFLAGS=-DWITHSPLICE bench/build.sh devel
# CC="gcc -fcommon" bench/build.sh 0.8.13 old Makefiles set CFLAGS
# outright, so a flag a newer
# compiler needs goes with CC
#
# Run from anywhere inside the repository.
set -e
top=$(git rev-parse --show-toplevel)
out="$top/bench/bin"
work="${TMPDIR:-/tmp}/3proxy-bench-src"
mkdir -p "$out" "$work"
for ref in "$@"; do
if [ "$ref" = "." ]; then
name=${NAME:-worktree}
src="$work/$name"
rm -rf "$src"
mkdir -p "$src"
# tracked and untracked files as they are now, nothing ignored
(cd "$top" && git ls-files -co --exclude-standard -z |
xargs -0 sh -c 'for f; do [ -f "$f" ] && printf "%s\0" "$f"; done' sh |
tar cf - --null -T - ) | (cd "$src" && tar xf -)
else
name=${NAME:-$ref}
src="$work/$name"
rm -rf "$src"
mkdir -p "$src"
(cd "$top" && git archive "$ref") | (cd "$src" && tar xf -)
fi
echo "== $name"
(
cd "$src"
mkdir -p bin
make -f Makefile.Linux CC="${CC:-gcc}" EXTRA_CFLAGS="$EXTRA_CFLAGS" >build.log 2>&1 ||
{ tail -20 build.log; exit 1; }
)
# versions before 0.9 leave the binary in src/
for b in "$src/bin/3proxy" "$src/src/3proxy"; do
[ -f "$b" ] && break
done
cp "$b" "$out/3proxy-$name"
echo " $out/3proxy-$name"
done