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#!/usr/bin/env python
"""Run some performance numbers. <cases-dir> is a directory with a
number of "*.text" files to process.
Example:
python gen_perf_cases.py # generate a couple cases dirs
python perf.py tmp-test-cases
"""
import os
import sys
import time
from os.path import *
from glob import glob
import optparse
from util import hotshotit
clock = sys.platform == "win32" and time.clock or time.time
@hotshotit
def hotshot_markdown_py(cases_dir, repeat):
time_markdown_py(cases_dir, repeat)
def time_markdown_py(cases_dir, repeat):
sys.path.insert(0, join("..", "test"))
import markdown
del sys.path[0]
markdowner = markdown.Markdown()
times = []
for i in range(repeat):
start = clock()
for path in glob(join(cases_dir, "*.text")):
f = open(path, 'r')
content = f.read()
f.close()
try:
markdowner.convert(content)
markdowner.reset()
except UnicodeError:
pass
end = clock()
times.append(end - start)
print(" markdown.py: best of %d: %.3fs" % (repeat, min(times)))
@hotshotit
def hotshot_markdown2_py(cases_dir, repeat):
time_markdown2_py(cases_dir, repeat)
def time_markdown2_py(cases_dir, repeat):
sys.path.insert(0, "../lib")
import markdown2
del sys.path[0]
markdowner = markdown2.Markdown()
times = []
for i in range(repeat):
start = clock()
for path in glob(join(cases_dir, "*.text")):
f = open(path, 'r')
content = f.read()
f.close()
markdowner.convert(content)
end = clock()
times.append(end - start)
print(" markdown2.py: best of %d: %.3fs" % (repeat, min(times)))
def time_markdown_pl(cases_dir, repeat):
times = []
for i in range(repeat):
start = clock()
os.system('perl time_markdown_pl.pl "%s"' % cases_dir)
end = clock()
times.append(end - start)
print(" Markdown.pl: best of %d: %.3fs" % (repeat, min(times)))
def time_all(cases_dir, repeat):
time_markdown_pl(cases_dir, repeat=repeat)
time_markdown_py(cases_dir, repeat=repeat)
time_markdown2_py(cases_dir, repeat=repeat)
def time_not_markdown_py(cases_dir, repeat):
time_markdown_pl(cases_dir, repeat=repeat)
time_markdown2_py(cases_dir, repeat=repeat)
#---- mainline
class _NoReflowFormatter(optparse.IndentedHelpFormatter):
"""An optparse formatter that does NOT reflow the description."""
def format_description(self, description):
return description or ""
def main(args=sys.argv):
usage = "python perf.py [-i all|markdown.py|markdown2.py|Markdown.pl] [cases-dir]"
parser = optparse.OptionParser(prog="perf", usage=usage,
description=__doc__, formatter=_NoReflowFormatter())
parser.add_option("-r", "--repeat", type="int",
help="number of times to repeat timing cycle (default 3 if timing, "
"1 if profiling)")
parser.add_option("-i", "--implementation",
help="Markdown implementation(s) to run: all (default), "
"markdown.py, markdown2.py, Markdown.pl, not-markdown.py")
parser.add_option("--hotshot", "--profile", dest="hotshot",
action="store_true",
help="profile and dump stats about a single run (not supported "
"for Markdown.pl)")
parser.set_defaults(implementation="all", hotshot=False, repeat=None)
opts, args = parser.parse_args()
if len(args) != 1:
sys.stderr.write("error: incorrect number of args\n")
sys.stderr.write(__doc__)
return 1
cases_dir = args[0]
if not exists(cases_dir):
raise OSError("cases dir `%s' does not exist: use "
"gen_perf_cases.py to generate some cases dirs"
% cases_dir)
if opts.repeat is None:
opts.repeat = opts.hotshot and 1 or 3
if opts.hotshot:
assert opts.implementation in ("markdown.py", "markdown2.py")
timer_name = "hotshot_%s" \
% opts.implementation.lower().replace('.', '_').replace('-', '_')
d = sys.modules[__name__].__dict__
if timer_name not in d:
raise ValueError("no '%s' timer function" % timer_name)
timer = d[timer_name]
print("Profile conversion of %s (plat=%s):" \
% (os.path.join(cases_dir, "*.text"), sys.platform))
timer(cases_dir, repeat=opts.repeat)
print()
os.system("python show_stats.py %s.prof" % timer_name)
else:
timer_name = "time_%s" \
% opts.implementation.lower().replace('.', '_').replace('-', '_')
d = sys.modules[__name__].__dict__
if timer_name not in d:
raise ValueError("no '%s' timer function" % timer_name)
timer = d[timer_name]
print("Time conversion of %s (plat=%s):" \
% (os.path.join(cases_dir, "*.text"), sys.platform))
timer(cases_dir, repeat=opts.repeat)
if __name__ == "__main__":
sys.exit( main(sys.argv) )
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