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#!/usr/bin/env python3
import argparse
import atexit
import datetime
import importlib
import os
import pickle
import subprocess
import src.facter
import src.globalvars
from src.util import *
benchmarks = ["loop", "mysql", "falsesharing", "dj_trace", "larson"]
parser = argparse.ArgumentParser(description="benchmark memory allocators")
parser.add_argument("-ds, --dont-save", action='store_true', dest="dont_save",
help="don't save benchmark results in RESULTDIR")
parser.add_argument("-l", "--load", help="load benchmark results from directory", type=str)
parser.add_argument("-a", "--allocators", help="load allocator definitions from file", type=str)
parser.add_argument("-r", "--runs", help="how often the benchmarks run", default=3, type=int)
parser.add_argument("-v", "--verbose", help="more output", action='count')
parser.add_argument("-vdebug", "--verbose-debug", help="debug output",
action='store_true', dest="verbose_debug")
parser.add_argument("-b", "--benchmarks", help="benchmarks to run", nargs='+')
parser.add_argument("-ns", "--nosum", help="don't produce plots", action='store_true')
parser.add_argument("-rd", "--resultdir", help="directory where all results go", type=str)
parser.add_argument("--license", help="print license info and exit", action='store_true')
"""Run tasks on exit"""
def epilog():
if os.listdir(src.globalvars.resdir) == []:
print_warn("Remove empty resultdir")
os.removedirs(src.globalvars.resdir)
else:
endtime = datetime.datetime.now().isoformat()
endtime = endtime[:endtime.rfind(':')]
src.globalvars.facts["endtime"] = endtime
with open(os.path.join(src.globalvars.resdir, "facts.save"), "wb") as f:
pickle.dump(src.globalvars.facts, f)
def main():
args = parser.parse_args()
if args.license:
print("Copyright (C) 2018-2019 Florian Fischer")
print("License GPLv3: GNU GPL version 3 <http://gnu.org/licenses/gpl.html>")
return
atexit.register(epilog)
# Set global verbosity
# quiet | -1: Don't output to stdout
# default | 0: Only print status and errors
# 1: Print warnings and some infos
# 2: Print all infos
# debug | 99: Print all awailable infos
if args.verbose_debug:
src.globalvars.verbosity = 99
elif args.verbose:
src.globalvars.verbosity = args.verbose
verbosity = src.globalvars.verbosity
print_info2("Arguments:", args)
# Prepare allocbench
print_status("Building allocbench ...")
make_cmd = ["make"]
if verbosity < 1:
make_cmd.append("-s")
else:
# Flush stdout so the color reset from print_status works
print("", end="", flush=True)
subprocess.run(make_cmd)
# Default allocator definition file
allocators_file = os.path.join("build", "allocators", "allocators.py")
if args.allocators or os.path.isfile(allocators_file):
allocators_file = args.allocators or allocators_file
src.globalvars.allocators_file = allocators_file
with open(allocators_file, "r") as f:
print_status("Sourcing allocators definitions at", allocators_file,
"...")
g = {}
exec(f.read(), g)
src.globalvars.allocators = g["allocators"]
else:
print_status("Using system-wide installed allocators ...")
# Normal import fails
importlib.import_module('src.allocators')
print_info("Allocators:", *src.globalvars.allocators.keys())
# Load facts
if args.load:
with open(os.path.join(args.load, "facts.save"), "rb") as f:
old_facts = pickle.load(f)
if old_facts != src.globalvars.facts and args.runs > 0:
print_error("Can't combine benchmarks with different facts")
print_error("Aborting.")
exit(1)
else:
src.globalvars.facts = old_facts
else:
starttime = datetime.datetime.now().isoformat()
# strip seconds from string
starttime = start_time[:start_time.rfind(':')]
src.globalvars.facts["starttime"] = starttime
# Create result directory if we save or summarize results
need_resultdir = not (args.nosum and args.dont_save)
if need_resultdir:
if args.resultdir:
resdir = os.path.join(args.resultdir)
else:
resdir = os.path.join("results", src.globalvars.facts["hostname"],
src.globalvars.facts["starttime"])
# make resdir globally available
src.globalvars.resdir = resdir
try:
print_info2("Creating result dir:", resdir)
os.makedirs(resdir)
except FileExistsError:
pass
# TODO load all results at once
for bench in benchmarks:
if args.benchmarks and not bench in args.benchmarks:
continue
bench = eval("importlib.import_module('src.{0}').{0}".format(bench))
if args.load:
bench.load(path=args.load)
if args.runs > 0:
print_status("Preparing", bench.name, "...")
if not bench.prepare():
print_error("Preparing", bench.name, "failed!")
continue
if not bench.run(runs=args.runs):
continue
if need_resultdir:
print_info2("Changing cwd to:", resdir)
old_cwd = os.getcwd()
os.chdir(resdir)
if not args.dont_save:
bench.save()
if not args.nosum:
try:
os.mkdir(bench.name)
except FileExistsError:
pass
os.chdir(bench.name)
print_status("Summarizing", bench.name, "...")
bench.summary()
os.chdir(old_cwd)
if args.runs > 0 and hasattr(bench, "cleanup"):
print_status("Cleaning up", bench.name, "...")
bench.cleanup()
if __name__ == "__main__":
main()
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