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#!/usr/bin/env python3
# This file is part of the MicroPython project, http://micropython.org/
# The MIT License (MIT)
# Copyright (c) 2019 Damien P. George
import os
import subprocess
import sys
import argparse
from glob import glob
sys.path.append('../tools')
import pyboard
# Paths for host executables
if os.name == 'nt':
CPYTHON3 = os.getenv('MICROPY_CPYTHON3', 'python3.exe')
MICROPYTHON = os.getenv('MICROPY_MICROPYTHON', '../ports/windows/micropython.exe')
else:
CPYTHON3 = os.getenv('MICROPY_CPYTHON3', 'python3')
MICROPYTHON = os.getenv('MICROPY_MICROPYTHON', '../ports/unix/micropython')
PYTHON_TRUTH = CPYTHON3
BENCH_SCRIPT_DIR = 'perf_bench/'
def compute_stats(lst):
avg = 0
var = 0
for x in lst:
avg += x
var += x * x
avg /= len(lst)
var = max(0, var / len(lst) - avg ** 2)
return avg, var ** 0.5
def run_script_on_target(target, script):
output = b''
err = None
if isinstance(target, pyboard.Pyboard):
# Run via pyboard interface
try:
target.enter_raw_repl()
output = target.exec_(script)
except pyboard.PyboardError as er:
err = er
else:
# Run local executable
try:
p = subprocess.run(target, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, input=script)
output = p.stdout
except subprocess.CalledProcessError as er:
err = er
return str(output.strip(), 'ascii'), err
def run_feature_test(target, test):
with open('feature_check/' + test + '.py', 'rb') as f:
script = f.read()
output, err = run_script_on_target(target, script)
if err is None:
return output
else:
return 'CRASH: %r' % err
def run_benchmark_on_target(target, script):
output, err = run_script_on_target(target, script)
if err is None:
time, norm, result = output.split(None, 2)
try:
return int(time), int(norm), result
except ValueError:
return -1, -1, 'CRASH: %r' % output
else:
return -1, -1, 'CRASH: %r' % err
def run_benchmarks(target, param_n, param_m, n_average, test_list):
skip_complex = run_feature_test(target, 'complex') != 'complex'
skip_native = run_feature_test(target, 'native_check') != ''
for test_file in sorted(test_list):
print(test_file + ': ', end='')
# Check if test should be skipped
skip = (
skip_complex and test_file.find('bm_fft') != -1
or skip_native and test_file.find('viper_') != -1
)
if skip:
print('skip')
continue
# Create test script
with open(test_file, 'rb') as f:
test_script = f.read()
with open(BENCH_SCRIPT_DIR + 'benchrun.py', 'rb') as f:
test_script += f.read()
test_script += b'bm_run(%u, %u)\n' % (param_n, param_m)
# Write full test script if needed
if 0:
with open('%s.full' % test_file, 'wb') as f:
f.write(test_script)
# Run MicroPython a given number of times
times = []
scores = []
error = None
result_out = None
for _ in range(n_average):
time, norm, result = run_benchmark_on_target(target, test_script)
if time < 0 or norm < 0:
error = result
break
if result_out is None:
result_out = result
elif result != result_out:
error = 'FAIL self'
break
times.append(time)
scores.append(1e6 * norm / time)
# Check result against truth if needed
if error is None and result_out != 'None':
_, _, result_exp = run_benchmark_on_target(PYTHON_TRUTH, test_script)
if result_out != result_exp:
error = 'FAIL truth'
if error is not None:
print(error)
else:
t_avg, t_sd = compute_stats(times)
s_avg, s_sd = compute_stats(scores)
print('{:.2f} {:.4f} {:.2f} {:.4f}'.format(t_avg, 100 * t_sd / t_avg, s_avg, 100 * s_sd / s_avg))
if 0:
print(' times: ', times)
print(' scores:', scores)
sys.stdout.flush()
def parse_output(filename):
with open(filename) as f:
params = f.readline()
n, m, _ = params.strip().split()
n = int(n.split('=')[1])
m = int(m.split('=')[1])
data = []
for l in f:
if l.find(': ') != -1 and l.find(': skip') == -1 and l.find('CRASH: ') == -1:
name, values = l.strip().split(': ')
values = tuple(float(v) for v in values.split())
data.append((name,) + values)
return n, m, data
def compute_diff(file1, file2, diff_score):
# Parse output data from previous runs
n1, m1, d1 = parse_output(file1)
n2, m2, d2 = parse_output(file2)
# Print header
if diff_score:
print('diff of scores (higher is better)')
else:
print('diff of microsecond times (lower is better)')
if n1 == n2 and m1 == m2:
hdr = 'N={} M={}'.format(n1, m1)
else:
hdr = 'N={} M={} vs N={} M={}'.format(n1, m1, n2, m2)
print('{:24} {:>10} -> {:>10} {:>10} {:>7}% (error%)'.format(hdr, file1, file2, 'diff', 'diff'))
# Print entries
while d1 and d2:
if d1[0][0] == d2[0][0]:
# Found entries with matching names
entry1 = d1.pop(0)
entry2 = d2.pop(0)
name = entry1[0].rsplit('/')[-1]
av1, sd1 = entry1[1 + 2 * diff_score], entry1[2 + 2 * diff_score]
av2, sd2 = entry2[1 + 2 * diff_score], entry2[2 + 2 * diff_score]
sd1 *= av1 / 100 # convert from percent sd to absolute sd
sd2 *= av2 / 100 # convert from percent sd to absolute sd
av_diff = av2 - av1
sd_diff = (sd1 ** 2 + sd2 ** 2) ** 0.5
percent = 100 * av_diff / av1
percent_sd = 100 * sd_diff / av1
print('{:24} {:10.2f} -> {:10.2f} : {:+10.2f} = {:+7.3f}% (+/-{:.2f}%)'.format(name, av1, av2, av_diff, percent, percent_sd))
elif d1[0][0] < d2[0][0]:
d1.pop(0)
else:
d2.pop(0)
def main():
cmd_parser = argparse.ArgumentParser(description='Run benchmarks for MicroPython')
cmd_parser.add_argument('-t', '--diff-time', action='store_true', help='diff time outputs from a previous run')
cmd_parser.add_argument('-s', '--diff-score', action='store_true', help='diff score outputs from a previous run')
cmd_parser.add_argument('-p', '--pyboard', action='store_true', help='run tests via pyboard.py')
cmd_parser.add_argument('-d', '--device', default='/dev/ttyACM0', help='the device for pyboard.py')
cmd_parser.add_argument('-a', '--average', default='8', help='averaging number')
cmd_parser.add_argument('--emit', default='bytecode', help='MicroPython emitter to use (bytecode or native)')
cmd_parser.add_argument('N', nargs=1, help='N parameter (approximate target CPU frequency)')
cmd_parser.add_argument('M', nargs=1, help='M parameter (approximate target heap in kbytes)')
cmd_parser.add_argument('files', nargs='*', help='input test files')
args = cmd_parser.parse_args()
if args.diff_time or args.diff_score:
compute_diff(args.N[0], args.M[0], args.diff_score)
sys.exit(0)
# N, M = 50, 25 # esp8266
# N, M = 100, 100 # pyboard, esp32
# N, M = 1000, 1000 # PC
N = int(args.N[0])
M = int(args.M[0])
n_average = int(args.average)
if args.pyboard:
target = pyboard.Pyboard(args.device)
target.enter_raw_repl()
else:
target = [MICROPYTHON, '-X', 'emit=' + args.emit]
if len(args.files) == 0:
tests_skip = ('benchrun.py',)
if M <= 25:
# These scripts are too big to be compiled by the target
tests_skip += ('bm_chaos.py', 'bm_hexiom.py', 'misc_raytrace.py')
tests = sorted(
BENCH_SCRIPT_DIR + test_file for test_file in os.listdir(BENCH_SCRIPT_DIR)
if test_file.endswith('.py') and test_file not in tests_skip
)
else:
tests = sorted(args.files)
print('N={} M={} n_average={}'.format(N, M, n_average))
run_benchmarks(target, N, M, n_average, tests)
if isinstance(target, pyboard.Pyboard):
target.exit_raw_repl()
target.close()
if __name__ == "__main__":
main()