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#-----------------------------------------------------------------
# Benchmarking utility for internal use.
#
# Use with Python 3.6+
#
# Eli Bendersky [https://eli.thegreenplace.net/]
# License: BSD
#-----------------------------------------------------------------
import os
import statistics
import sys
import time
sys.path.extend(['.', '..'])
from pycparser import c_parser, c_ast
def measure_parse(text, n, progress_cb):
times = []
for i in range(n):
parser = c_parser.CParser()
t1 = time.time()
ast = parser.parse(text, '')
elapsed = time.time() - t1
assert isinstance(ast, c_ast.FileAST)
times.append(elapsed)
progress_cb(i)
return times
def measure_file(filename, n):
progress_cb = lambda i: print('.', sep='', end='', flush=True)
with open(filename) as f:
print('%-25s' % os.path.basename(filename), end='', flush=True)
text = f.read()
times = measure_parse(text, n, progress_cb)
print(' Mean: %.3f Stddev: %.3f' % (statistics.mean(times),
statistics.stdev(times)))
NUM_RUNS = 5
if __name__ == '__main__':
if len(sys.argv) < 2:
print("Usage: %s <dir with input files>")
sys.exit(1)
for filename in os.listdir(sys.argv[1]):
filename = os.path.join(sys.argv[1], filename)
measure_file(filename, NUM_RUNS)
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