mgba/tools/perf.py

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#!/usr/bin/env python
from __future__ import print_function
import argparse
import csv
import os
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import shlex
import signal
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import socket
import subprocess
import sys
import time
class PerfTest(object):
EXECUTABLE = 'mgba-perf'
def __init__(self, rom, renderer='software'):
self.rom = rom
self.renderer = renderer
self.results = None
self.name = 'Perf Test: {}'.format(rom)
def get_args(self):
return []
def wait(self, proc):
pass
def run(self, cwd):
args = [os.path.join(os.getcwd(), self.EXECUTABLE), '-P']
args.extend(self.get_args())
if not self.renderer:
args.append('-N')
elif self.renderer == 'threaded-software':
args.append('-T')
args.append(self.rom)
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env = {}
if 'LD_LIBRARY_PATH' in os.environ:
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env['LD_LIBRARY_PATH'] = os.path.abspath(os.environ['LD_LIBRARY_PATH'])
env['DYLD_LIBRARY_PATH'] = env['LD_LIBRARY_PATH'] # Fake it on OS X
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proc = subprocess.Popen(args, stdout=subprocess.PIPE, cwd=cwd, universal_newlines=True, env=env)
try:
self.wait(proc)
proc.wait()
except:
proc.kill()
raise
if proc.returncode:
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print('Game crashed!', file=sys.stderr)
return
reader = csv.DictReader(proc.stdout)
self.results = next(reader)
class WallClockTest(PerfTest):
def __init__(self, rom, duration, renderer='software'):
super(WallClockTest, self).__init__(rom, renderer)
self.duration = duration
self.name = 'Wall-Clock Test ({} seconds, {} renderer): {}'.format(duration, renderer, rom)
def wait(self, proc):
time.sleep(self.duration)
proc.send_signal(signal.SIGINT)
class GameClockTest(PerfTest):
def __init__(self, rom, frames, renderer='software'):
super(GameClockTest, self).__init__(rom, renderer)
self.frames = frames
self.name = 'Game-Clock Test ({} frames, {} renderer): {}'.format(frames, renderer, rom)
def get_args(self):
return ['-F', str(self.frames)]
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class PerfServer(object):
ITERATIONS_PER_INSTANCE = 50
def __init__(self, address, command=None):
s = address.rsplit(':', 1)
if len(s) == 1:
self.address = (s[0], 7216)
else:
self.address = (s[0], s[1])
if command:
self.command = shlex.split(command)
self.iterations = self.ITERATIONS_PER_INSTANCE
self.socket = None
self.results = []
self.reader = None
def _start(self, test):
if self.command:
server_command = list(self.command)
else:
server_command = [os.path.join(os.getcwd(), PerfTest.EXECUTABLE)]
server_command.extend(['--', '-PD', '0'])
if hasattr(test, "frames"):
server_command.extend(['-F', str(test.frames)])
if not test.renderer:
server_command.append('-N')
elif test.renderer == 'threaded-software':
server_command.append('-T')
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subprocess.check_call(server_command)
time.sleep(4)
self.socket = socket.create_connection(self.address, timeout=1000)
kwargs = {}
if sys.version_info[0] >= 3:
kwargs["encoding"] = "utf-8"
self.reader = csv.DictReader(self.socket.makefile(**kwargs))
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def run(self, test):
if not self.socket:
self._start(test)
self.socket.send(os.path.join("/perfroms", test.rom).encode("utf-8"))
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self.results.append(next(self.reader))
self.iterations -= 1
if self.iterations == 0:
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self.finish()
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self.iterations = self.ITERATIONS_PER_INSTANCE
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def finish(self):
self.socket.send(b"\n");
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self.reader = None
self.socket.close()
time.sleep(5)
self.socket = None
class Suite(object):
def __init__(self, cwd, wall=None, game=None, renderer='software'):
self.cwd = cwd
self.tests = []
self.wall = wall
self.game = game
self.renderer = renderer
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self.server = None
def set_server(self, server):
self.server = server
def collect_tests(self):
roms = []
for f in os.listdir(self.cwd):
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if f.endswith('.gba') or f.endswith('.zip') or f.endswith('.gbc') or f.endswith('.gb'):
roms.append(f)
roms.sort()
for rom in roms:
self.add_tests(rom)
def add_tests(self, rom):
if self.wall:
self.tests.append(WallClockTest(rom, self.wall, renderer=self.renderer))
if self.game:
self.tests.append(GameClockTest(rom, self.game, renderer=self.renderer))
def run(self):
results = []
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sock = None
for test in self.tests:
print('Running test {}'.format(test.name), file=sys.stderr)
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if self.server:
self.server.run(test)
else:
try:
test.run(self.cwd)
except KeyboardInterrupt:
print('Interrupted, returning early...', file=sys.stderr)
return results
if test.results:
results.append(test.results)
if self.server:
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self.server.finish()
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results.extend(self.server.results)
return results
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-w', '--wall-time', type=float, default=0, metavar='TIME', help='wall-clock time')
parser.add_argument('-g', '--game-frames', type=int, default=0, metavar='FRAMES', help='game-clock frames')
parser.add_argument('-N', '--disable-renderer', action='store_const', const=True, help='disable video rendering')
parser.add_argument('-T', '--threaded-renderer', action='store_const', const=True, help='threaded video rendering')
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parser.add_argument('-s', '--server', metavar='ADDRESS', help='run on server')
parser.add_argument('-S', '--server-command', metavar='COMMAND', help='command to launch server')
parser.add_argument('-o', '--out', metavar='FILE', help='output file path')
parser.add_argument('directory', help='directory containing ROM files')
args = parser.parse_args()
renderer = 'software'
if args.disable_renderer:
renderer = None
elif args.threaded_renderer:
renderer = 'threaded-software'
s = Suite(args.directory, wall=args.wall_time, game=args.game_frames, renderer=renderer)
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if args.server:
if args.server_command:
server = PerfServer(args.server, args.server_command)
else:
server = PerfServer(args.server)
s.set_server(server)
s.collect_tests()
results = s.run()
fout = sys.stdout
if args.out:
fout = open(args.out, 'w')
writer = csv.DictWriter(fout, results[0].keys())
writer.writeheader()
writer.writerows(results)
if fout is not sys.stdout:
fout.close()