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#!/usr/bin/env python3
import argparse
import atexit
import datetime
import importlib
import os
import pickle
import subprocess
import traceback
import src.facter
import src.globalvars
from src.util import *
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("--analyse", help="analyse benchmark behaviour using malt", action="store_true")
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')
def epilog():
"""Run tasks on exit"""
# After early errors resdir may not be set
if src.globalvars.resdir is not None:
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)
# collect facts
src.facter.collect_facts()
# 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.installed_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)
# We are just summarizing old results -> use their facts
elif args.runs == 0:
src.globalvars.facts = old_facts
else:
starttime = datetime.datetime.now().isoformat()
# strip seconds from string
starttime = starttime[:starttime.rfind(':')]
src.globalvars.facts["starttime"] = starttime
# Create result directory if we analyse, save or summarize
need_resultdir = not (args.nosum and args.dont_save and not args.analyse)
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
print_info2("Creating result dir:", resdir)
os.makedirs(resdir, exist_ok=True)
# TODO load all results at once
cwd = os.getcwd()
for bench in src.globalvars.benchmarks:
if args.benchmarks and bench not in args.benchmarks:
continue
if args.analyse or not args.nosum:
bench_res_dir = os.path.join(resdir, bench)
print_info2("Creating benchmark result dir:", bench_res_dir)
os.makedirs(bench_res_dir, exist_ok=True)
try:
bench = eval("importlib.import_module('src.benchmarks.{0}').{0}".format(bench))
if args.load:
bench.load(path=args.load)
if args.runs > 0 or args.analyse:
print_status("Preparing", bench.name, "...")
bench.prepare()
if args.analyse:
if find_cmd("malt") is not None:
print_status("Analysing {} ...".format(bench))
malt_cmd = "malt -o output:name={}/malt.{}.%3"
malt_cmd = malt_cmd.format(bench_res_dir, "{perm}")
old_allocs = bench.allocators
# use malt as allocator
bench.allocators = {"malt": {"cmd_prefix": malt_cmd,
"binary_suffix": "",
"LD_PRELOAD": ""}}
try:
bench.run(runs=1)
except Exception:
print_error(traceback.format_exc())
print_error("Skipping analysis of", bench, "!")
if "malt" in bench.results:
del(bench.results["malt"])
if "stats" in bench.results and "malt" in bench.results["stats"]:
del(bench.results["stats"]["malt"])
# restore allocs
bench.allocators = old_allocs
else:
print_error("malt not found. Skipping analyse.")
if args.runs > 1:
print_status("Running", bench.name, "...")
bench.run(runs=args.runs)
if need_resultdir:
print_info2("Changing cwd to:", resdir)
os.chdir(resdir)
if not args.dont_save:
bench.save()
if not args.nosum:
os.chdir(bench.name)
print_status("Summarizing", bench.name, "...")
bench.summary()
os.chdir(cwd)
if args.runs > 0 and hasattr(bench, "cleanup"):
print_status("Cleaning up", bench.name, "...")
bench.cleanup()
except Exception:
# Reset cwd
os.chdir(cwd)
print_error(traceback.format_exc())
print_error("Skipping", bench, "!")
continue
if __name__ == "__main__":
main()
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