SashegDev
874b6f20c2
Основа — Horizon (MIT). История апстрима не переносится: этот репозиторий ведёт свою.
491 lines
24 KiB
Python
Executable File
491 lines
24 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Server benchmark: the same bots on Horizon's server and on vanilla 26.3's (docs/server.md, section 9).
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Every run starts a fresh server from the same server.properties (seed, view and simulation distance 10,
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offline, creative so the bots can fly), waits for `Done`, lets `horizon-bots` join one a second, warms up,
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then measures for a while:
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- MSPT (average, P50, P95, P99) from each server's own `/tick query`, asked every 5 seconds on the console:
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vanilla's ServerTickRateManager numbers, which Horizon reproduces, so both measure themselves the same way;
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- RSS and CPU of the server's whole process tree, once a second;
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- chunks the bots receive per second (new terrain while the `explore` bots fly outwards), chunks sent again
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while a bot still held them, and the moves the server refused (pull-backs; "moved too quickly" and
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"moved wrongly" lines);
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- the start time to `Done`, and every bot that failed to join or was dropped.
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python3 tools/server_bench.py --servers horizon,vanilla --bots 1,10,25 --behaviour walk,explore
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The bots can run on another machine, so they don't take the server's CPU: `--bots-via 'ssh macmini'` with
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`--bots-bin` naming horizon-bots there and `--connect` the address it reaches this machine at. `--nice 19`
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runs every server at the lowest priority (a shared machine). The explore bots fly as fast as each server
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sends them chunks, so a faster server gets more terrain to generate; `--explore-speed` slows them to a rate
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both servers keep up with, for equal work. After the runs, the work table compares the servers at each bot
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count: chunks sent and new chunks generated a second, against the busiest server's. A run whose work is more
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than 10 % apart isn't a fair comparison of its tick times.
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The vanilla side runs the pinned server jar from tools/lab.py prepare (your own copy). It needs Java 25. The
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Horizon side runs target/release/horizon-server with the engine beside it; build both first:
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cargo build --release -p horizon-client --bin horizon-client -p horizon-server -p horizon-bots
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Two more Java servers, both dev-only downloads into .local/server-bench/jars (never committed or shipped):
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- `paper`: Paper's newest build for the pinned version, from PaperMC's download API, checked against the
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SHA-256 it publishes, with Paper's own defaults except `connection-throttle` (off: the bots all join from
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one address). Paperclip patches the pinned server jar (your copy, put in
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its cache so nothing is fetched from Mojang).
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- `fabric`: the pinned vanilla server on the pinned Fabric loader (tools/benchmark-deps/fabric.lock.json) with Lithium from
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tools/benchmark-deps/mods.lock.json (and Fabric API only if Lithium asks for it), checked against the lock's SHA-512.
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Both run with the same heap as vanilla (`--heap`).
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"""
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import argparse
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import datetime
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import json
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import os
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from pathlib import Path
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import platform
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import re
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import shutil
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import statistics
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import subprocess
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import sys
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import threading
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import time
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import urllib.request
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import zipfile
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try:
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from . import lab, runtime, test_rust_parity as base
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except ImportError:
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import lab
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import runtime
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import test_rust_parity as base
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ROOT = lab.ROOT
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EXE = '.exe' if os.name == 'nt' else ''
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# Where horizon-server and horizon-bots are (the engine is found beside horizon-server or on the PATH).
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BIN = Path(os.environ.get('HORIZON_BENCH_BIN', ROOT / 'target/release'))
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PROPERTIES = {
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'level-seed': '12345',
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'view-distance': '10',
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'simulation-distance': '10',
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'online-mode': 'false',
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'white-list': 'false',
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'gamemode': 'creative',
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'force-gamemode': 'true',
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'spawn-protection': '0',
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'max-players': '200',
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'difficulty': 'easy',
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'sync-chunk-writes': 'true',
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}
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def cpu_seconds(text):
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"""ps's cumulative CPU time: [[DD-]HH:]MM:SS[.ss]."""
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days, _, rest = text.rpartition('-')
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parts = [float(p) for p in rest.split(':')]
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seconds = 0.0
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for p in parts:
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seconds = seconds * 60 + p
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return seconds + (float(days) * 86400 if days else 0)
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def tree_usage(root):
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"""RSS (bytes) and CPU seconds of a process and all its descendants."""
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out = subprocess.run(['ps', '-A', '-o', 'pid=,ppid=,rss=,time='], capture_output=True, text=True).stdout
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rows = {}
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for line in out.splitlines():
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parts = line.split()
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if len(parts) == 4:
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rows[int(parts[0])] = (int(parts[1]), int(parts[2]) * 1024, cpu_seconds(parts[3]))
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tree, frontier = {root}, [root]
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while frontier:
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parent = frontier.pop()
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for pid, (ppid, _, _) in rows.items():
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if ppid == parent and pid not in tree:
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tree.add(pid)
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frontier.append(pid)
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rss = sum(rows[p][1] for p in tree if p in rows)
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cpu = sum(rows[p][2] for p in tree if p in rows)
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return rss, cpu
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class Server:
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"""A server with its console on stdin and its output collected."""
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def __init__(self, command, directory, log_path):
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self.lines = []
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self.lock = threading.Lock()
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self.log = log_path.open('w', encoding='utf-8')
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self.process = subprocess.Popen([str(c) for c in command], cwd=directory, stdin=subprocess.PIPE,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True,
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encoding='utf-8', errors='replace',
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env=lab.game_env())
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threading.Thread(target=self._read, daemon=True).start()
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def _read(self):
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for line in self.process.stdout:
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with self.lock:
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self.lines.append(line.rstrip('\n'))
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self.log.write(line)
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self.log.flush()
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def count(self):
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with self.lock:
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return len(self.lines)
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def since(self, n):
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with self.lock:
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return self.lines[n:]
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def wait_for(self, pattern, timeout):
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regex = re.compile(pattern)
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deadline = time.time() + timeout
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while time.time() < deadline:
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if any(regex.search(l) for l in self.since(0)):
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return
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if self.process.poll() is not None:
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raise RuntimeError('the server exited:\n' + '\n'.join(self.since(0)[-20:]))
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time.sleep(0.1)
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raise RuntimeError(f'no {pattern!r} within {timeout} s')
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def console(self, line):
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self.process.stdin.write(line + '\n')
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self.process.stdin.flush()
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def stop(self):
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if self.process.poll() is None:
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try:
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self.console('stop')
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self.process.wait(timeout=180)
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except (BrokenPipeError, subprocess.TimeoutExpired):
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self.process.kill()
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self.process.wait()
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self.log.close()
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# The line every server logs once it is up: vanilla, Fabric and Horizon `[time] [Server thread/INFO]: Done (`,
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# Paper `[time INFO]: Done (`.
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DONE = r'INFO\]: Done \('
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TICK_AVERAGE = re.compile(r'Average time per tick: ([0-9.]+) ?ms')
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TICK_PERCENTILES = re.compile(r'P50: ([0-9.]+) ?ms P95: ([0-9.]+) ?ms P99: ([0-9.]+) ?ms')
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# The newest Paper build for the pinned version, from PaperMC's download API (dev-only, never committed).
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PAPER_API = 'https://fill.papermc.io/v3/projects/paper/versions/{version}/builds/latest'
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JARS = lab.LOCAL / 'server-bench/jars'
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def paper_jar():
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"""Paper's newest build for the pinned version, downloaded once and checked against its SHA-256."""
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lock, _ = lab.config()
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version = lock['minecraft']['version']
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request = urllib.request.Request(PAPER_API.format(version=version),
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headers={'User-Agent': 'horizon-server-bench (github.com/horizon-rust/horizon)'})
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with urllib.request.urlopen(request, timeout=30) as response:
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build = json.load(response)
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download = build['downloads']['server:default']
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jar = runtime.fetch(download['url'], JARS / download['name'], download['checksums']['sha256'], 'sha256')
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return jar, build['id']
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def fabric_mods():
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"""Lithium from tools/benchmark-deps/mods.lock.json, plus Fabric API if Lithium depends on it (checked, cached)."""
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lock = json.loads((ROOT / 'tools/benchmark-deps/mods.lock.json').read_text())
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def fetch(name):
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project = lock['projects'][name]
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return runtime.fetch(project['url'], JARS / project['filename'], project['hashes']['sha512'], 'sha512')
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jars = [fetch('lithium')]
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with zipfile.ZipFile(jars[0]) as archive:
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depends = json.loads(archive.read('fabric.mod.json')).get('depends', {})
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if any(d == 'fabric-api' or d.startswith('fabric-') and d != 'fabricloader' for d in depends):
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jars.append(fetch('fabric-api'))
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return jars, {'fabric_loader': lock['fabric_loader'], 'lithium': lock['projects']['lithium']['version']}
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def tick_query(server):
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"""Asks `tick query` and reads the average and percentiles it prints (both servers print the same)."""
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start = server.count()
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server.console('tick query')
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deadline = time.time() + 5
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average = percentiles = None
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while time.time() < deadline and (average is None or percentiles is None):
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for line in server.since(start):
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if (m := TICK_AVERAGE.search(line)) and average is None:
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average = float(m.group(1))
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if (m := TICK_PERCENTILES.search(line)) and percentiles is None:
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percentiles = tuple(float(g) for g in m.groups())
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time.sleep(0.05)
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if average is None or percentiles is None:
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return None
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return {'average': average, 'p50': percentiles[0], 'p95': percentiles[1], 'p99': percentiles[2]}
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def server_command(kind, directory, args):
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java = ['java', f'-Xms{args.heap}', f'-Xmx{args.heap}', '-Duser.timezone=UTC']
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if kind == 'vanilla':
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_, jars, libraries = base.verify_artifacts()
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classpath = os.pathsep.join(map(str, [jars['server'], *libraries]))
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return [*java, '-cp', classpath, 'net.minecraft.server.Main', 'nogui']
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if kind == 'paper':
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lock, jars, _ = base.verify_artifacts()
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jar, _ = paper_jar()
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# Paperclip's cache, libraries and patched jar are shared by every run; the pinned server jar (your
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# copy) seeds its cache, so it never downloads Mojang's.
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shared = lab.LOCAL / 'server-bench/paper-shared'
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cache = shared / 'cache'
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cache.mkdir(parents=True, exist_ok=True)
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mojang = cache / f'mojang_{lock["minecraft"]["version"]}.jar'
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if not mojang.exists():
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shutil.copyfile(jars['server'].parent / 'server.jar', mojang)
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for name in ('cache', 'libraries', 'versions'):
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(shared / name).mkdir(exist_ok=True)
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(directory / name).symlink_to(shared / name, target_is_directory=True)
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# Paper refuses a second login from one address within 4 s (bukkit.yml's connection-throttle), and
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# every bot comes from the same one. Off, as on vanilla; Paper fills in the rest of the file.
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(directory / 'bukkit.yml').write_text('settings:\n connection-throttle: -1\n')
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return [*java, '-jar', jar, '--nogui']
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if kind == 'fabric':
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_, jars, libraries = base.verify_artifacts()
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mods = directory / 'mods'
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mods.mkdir()
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for jar in fabric_mods()[0]:
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shutil.copyfile(jar, mods / jar.name)
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classpath = os.pathsep.join(map(str, [jars['server'], *libraries, *runtime.fabric_libraries()]))
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return [*java, '-Dfabric.log.disableAnsi=true', '-cp', classpath,
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'net.fabricmc.loader.impl.launch.knot.KnotServer', 'nogui']
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server = BIN / f'horizon-server{EXE}'
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subprocess.run([server, '--dir', directory, 'import', directory / 'server.properties'], check=True,
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capture_output=True)
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toml = directory / 'server.toml'
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# The same settings, without the web panel.
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toml.write_text(re.sub(r'(?m)^bind = "127\.0\.0\.1:8130"', 'bind = ""', toml.read_text()))
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return [server, '--dir', directory, 'run']
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def bots_command(args):
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"""horizon-bots here, or through `--bots-via` (for example `ssh macmini`) on another machine."""
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if args.bots_via:
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return [*args.bots_via.split(), args.bots_bin or 'horizon-bots']
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return [args.bots_bin or BIN / f'horizon-bots{EXE}']
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def run_once(kind, bots, behaviour, args, out):
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name = f'{kind}-{behaviour}-{bots}'
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directory = out / name
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shutil.rmtree(directory, ignore_errors=True)
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directory.mkdir(parents=True)
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port = lab.free_port()
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props = dict(PROPERTIES, **{'server-port': str(port), 'level-seed': str(args.seed)})
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(directory / 'server.properties').write_text(''.join(f'{k}={v}\n' for k, v in props.items()))
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(directory / 'eula.txt').write_text('eula=true\n')
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command = server_command(kind, directory, args)
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if args.nice:
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command = ['nice', '-n', str(args.nice), *command]
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started = time.time()
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server = Server(command, directory, out / f'{name}.log')
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result = {'server': kind, 'bots': bots, 'behaviour': behaviour}
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try:
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server.wait_for(DONE, 600)
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result['start_seconds'] = round(time.time() - started, 2)
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# Every bot appears on the world spawn itself, not spread around it, so both servers see the same paths.
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server.console('gamerule respawn_radius 0')
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for rule in filter(None, args.gamerule.split(',')):
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server.console('gamerule ' + rule.replace('=', ' '))
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time.sleep(5)
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report = out / f'{name}-bots.json'
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total = bots * args.join_every + args.warmup + args.seconds
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# The summary comes back on stdout after the per-second lines, so it works over ssh too.
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bot_process = subprocess.Popen(
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[*bots_command(args), '--server', f'{args.connect}:{port}', '--bots', str(bots),
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'--behaviour', behaviour, '--join-every', str(args.join_every), '--seconds', str(int(total)),
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'--seed', str(args.seed), '--report', '-',
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*(['--explore-speed', str(args.explore_speed)] if args.explore_speed else [])],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True)
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bot_lines = []
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threading.Thread(target=lambda: bot_lines.extend(bot_process.stdout), daemon=True).start()
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# All bots in, then the warm-up.
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time.sleep(bots * args.join_every + args.warmup)
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measure_start = time.time()
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rss, cpu, ticks = [], [], []
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_, last_cpu = tree_usage(server.process.pid)
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last_time = time.time()
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next_query = time.time()
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while time.time() - measure_start < args.seconds:
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time.sleep(1)
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now = time.time()
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r, c = tree_usage(server.process.pid)
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rss.append(r)
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cpu.append((c - last_cpu) / (now - last_time) * 100)
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last_cpu, last_time = c, now
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if now >= next_query:
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if (t := tick_query(server)) is not None:
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ticks.append(t)
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next_query = now + 5
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bot_process.wait(timeout=total + 120)
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time.sleep(0.5)
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measured, rest = [], []
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for line in list(bot_lines):
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try:
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sample = json.loads(line)
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except ValueError:
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sample = None
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if isinstance(sample, dict) and 't' in sample:
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measured.append(sample)
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else:
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rest.append(line)
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window = [l for l in measured if l['t'] >= measured[-1]['t'] - args.seconds] if measured else []
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summary_text = ''.join(rest)
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summary = json.loads(summary_text) if summary_text.strip() else {}
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report.write_text(json.dumps(summary, indent=2) + '\n')
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mean = lambda xs: round(statistics.fmean(xs), 2) if xs else None
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per_bot = summary.get('per_bot', [])
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by_behaviour = {}
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for b in per_bot:
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by_behaviour.setdefault(b['behaviour'], []).append(b)
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result.update({
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'mspt': {k: mean([t[k] for t in ticks]) for k in ('average', 'p50', 'p95', 'p99')},
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'mspt_worst_p99': max((t['p99'] for t in ticks), default=None),
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# /tick query reports times, not the rate: 20 while the average fits in 50 ms.
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'tps': round(min(20.0, 1000 / max(statistics.fmean([t['average'] for t in ticks]), 1e-9)), 2) if ticks else None,
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'rss_mb': {'mean': mean([r / 1e6 for r in rss]), 'max': round(max(rss) / 1e6, 1) if rss else None},
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'cpu_percent': mean(cpu),
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'chunks_per_second': mean([l['chunks_per_second'] for l in window]),
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# Over the measured window: different chunks reaching the bots, chunks they had dropped and got
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# again (walking back), and ticks the bots stood still waiting for their own chunk.
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**({k + '_per_second': round((window[-1][k] - window[0][k]) / max(len(window) - 1, 1), 2)
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for k in ('unique', 'forgotten', 'waited_ticks')} if len(window) > 1 else {}),
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'chunks_total': summary.get('chunks'),
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# Per bot over the whole run: every chunk received, the different ones, and those sent again
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# while the bot still held them.
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'chunks_per_bot': {k: mean([b['chunks'] for b in v]) for k, v in by_behaviour.items()},
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'unique_chunks_per_bot': {k: mean([b['unique_chunks'] for b in v]) for k, v in by_behaviour.items()},
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'resent': summary.get('resent'),
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'pulled_back': summary.get('pulled_back'),
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'moved_too_quickly': sum('moved too quickly!' in l for l in server.since(0)),
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'moved_wrongly': sum('moved wrongly!' in l for l in server.since(0)),
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'bots_joined': summary.get('joined'),
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'bots_failed': [b for b in summary.get('per_bot', []) if b.get('error')],
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'tick_queries': len(ticks),
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})
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except Exception as e: # a failed run is reported, and the next one still runs
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result['error'] = str(e)
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finally:
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server.stop()
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return result
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# How far apart two servers' chunks a second (sent, and new) may be and still count as the same work: 10 %,
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# or a chunk a second when there are few.
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EQUAL_WORK = 0.10
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def work(runs):
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"""Each pass and bot count that ran on more than one server: every server's chunks sent and new chunks a
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second as a share of the busiest one's, the ticks a second its bots stood waiting for their own chunk,
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and whether the work was equal (within EQUAL_WORK on both)."""
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groups = {}
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for r in runs:
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if 'error' not in r:
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groups.setdefault((r['behaviour'], r['bots']), []).append(r)
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rows = []
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for (behaviour, bots), group in groups.items():
|
|
if len(group) < 2:
|
|
continue
|
|
row = {'behaviour': behaviour, 'bots': bots, 'servers': {}, 'equal': True}
|
|
for key in ('chunks_per_second', 'unique_per_second'):
|
|
top = max(r.get(key) or 0 for r in group)
|
|
for r in group:
|
|
value = r.get(key) or 0
|
|
share = round(value / top, 3) if top else 1.0
|
|
row['servers'].setdefault(r['server'], {})[key] = {'value': value, 'share': share}
|
|
if top - value > max(EQUAL_WORK * top, 1.0):
|
|
row['equal'] = False
|
|
for r in group:
|
|
row['servers'][r['server']]['waited_ticks_per_second'] = r.get('waited_ticks_per_second')
|
|
rows.append(row)
|
|
return rows
|
|
|
|
|
|
def versions(kinds):
|
|
"""The Paper build and the Fabric loader and Lithium versions that ran, for the report."""
|
|
out = {}
|
|
if 'paper' in kinds:
|
|
out['paper_build'] = paper_jar()[1]
|
|
if 'fabric' in kinds:
|
|
out.update(fabric_mods()[1])
|
|
return out
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description=__doc__.split('\n\n')[0])
|
|
parser.add_argument('--servers', default='horizon,vanilla', help='horizon, vanilla, paper, fabric (Lithium)')
|
|
parser.add_argument('--bots', default='1,10,25,50')
|
|
parser.add_argument('--behaviour', default='walk,explore', help='one pass per behaviour (comma-separated)')
|
|
parser.add_argument('--join-every', type=float, default=1.0)
|
|
parser.add_argument('--warmup', type=int, default=60)
|
|
parser.add_argument('--seconds', type=int, default=300)
|
|
parser.add_argument('--seed', type=int, default=12345)
|
|
parser.add_argument('--explore-speed', type=float, default=0,
|
|
help='blocks a second the explore bots fly (default: the bots\' 22, as fast as chunks '
|
|
'come); a speed both servers keep up with makes the explore pass equal work')
|
|
parser.add_argument('--gamerule', default='',
|
|
help="more game rules for both servers, 'name=value,...' (locator_bar=false: Horizon has "
|
|
"no locator bar yet)")
|
|
parser.add_argument('--heap', default='4g', help='the Java heap, -Xms and -Xmx (vanilla, Paper, Fabric)')
|
|
parser.add_argument('--out', type=Path, default=None, help='the report (JSON)')
|
|
parser.add_argument('--nice', type=int, default=0, help='run the servers under nice -n N')
|
|
parser.add_argument('--bots-via', default='', help="a command prefix to run the bots elsewhere ('ssh host')")
|
|
parser.add_argument('--bots-bin', default='', help='horizon-bots (on the --bots-via machine)')
|
|
parser.add_argument('--connect', default='127.0.0.1', help='the address the bots reach the server at')
|
|
args = parser.parse_args()
|
|
out = lab.LOCAL / 'server-bench'
|
|
out.mkdir(parents=True, exist_ok=True)
|
|
runs = []
|
|
for behaviour in args.behaviour.split(','):
|
|
for bots in [int(b) for b in args.bots.split(',')]:
|
|
for kind in args.servers.split(','):
|
|
print(f'{kind}, {bots} {behaviour} bots...', flush=True)
|
|
result = run_once(kind, bots, behaviour, args, out)
|
|
runs.append(result)
|
|
print(json.dumps(result), flush=True)
|
|
report = {
|
|
'kind': 'horizon-server-benchmark',
|
|
'date': datetime.datetime.now(datetime.timezone.utc).isoformat(timespec='seconds'),
|
|
'machine': {'system': platform.system(), 'machine': platform.machine(), 'cpus': os.cpu_count()},
|
|
'commit': subprocess.run(['git', 'rev-parse', 'HEAD'], cwd=ROOT, capture_output=True, text=True).stdout.strip(),
|
|
'java': subprocess.run(['java', '--version'], capture_output=True, text=True).stdout.splitlines()[:1],
|
|
'versions': versions(args.servers.split(',')),
|
|
'settings': {**vars(args), 'out': str(args.out), 'properties': PROPERTIES},
|
|
'runs': runs,
|
|
'work': work(runs),
|
|
}
|
|
path = args.out or out / 'report.json'
|
|
path.parent.mkdir(parents=True, exist_ok=True)
|
|
path.write_text(json.dumps(report, indent=2) + '\n')
|
|
print(f'\n{"server":8} {"pass":8} {"bots":>4} {"start s":>8} {"MSPT":>6} {"P95":>6} {"P99":>6} {"RSS MB":>7} '
|
|
f'{"CPU %":>6} {"chunks/s":>8} {"/bot":>6} {"resent":>6} {"pulled":>6} {"joined":>6}')
|
|
for r in runs:
|
|
if 'error' in r:
|
|
print(f'{r["server"]:8} {r["behaviour"]:8} {r["bots"]:>4} failed: {r["error"].splitlines()[0]}')
|
|
continue
|
|
# A mixed pass: every bot's.
|
|
per_bot = r['chunks_per_bot'].get(r['behaviour']) or round((r['chunks_total'] or 0) / r['bots'])
|
|
print(f'{r["server"]:8} {r["behaviour"]:8} {r["bots"]:>4} {r["start_seconds"]:>8} {r["mspt"]["average"]!s:>6} '
|
|
f'{r["mspt"]["p95"]!s:>6} {r["mspt"]["p99"]!s:>6} {r["rss_mb"]["mean"]!s:>7} {r["cpu_percent"]!s:>6} '
|
|
f'{r["chunks_per_second"]!s:>8} {per_bot!s:>6} {r["resent"]!s:>6} {r["pulled_back"]!s:>6} '
|
|
f'{r["bots_joined"]!s:>6}')
|
|
if report['work']:
|
|
print(f'\nWork, against the busiest server (chunks a second sent, new; ticks a second bots waited):')
|
|
for row in report['work']:
|
|
cells = ' '.join(
|
|
f'{server} {w["chunks_per_second"]["value"]} ({w["chunks_per_second"]["share"]:.0%}), '
|
|
f'{w["unique_per_second"]["value"]} ({w["unique_per_second"]["share"]:.0%}), '
|
|
f'{w["waited_ticks_per_second"]}' for server, w in row['servers'].items())
|
|
print(f'{row["behaviour"]:8} {row["bots"]:>4} {"equal" if row["equal"] else "NOT EQUAL"} {cells}')
|
|
print(f'\nWrote {path}')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|