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import copy
import csv
import matplotlib.pyplot as plt
import multiprocessing
import numpy as np
import os
import pickle
import re
import shutil
import subprocess
from time import sleep
from benchmark import Benchmark
from common_targets import common_targets
cwd = os.getcwd()
prepare_cmd = ("sysbench oltp_read_only --db-driver=mysql --mysql-user=root "
"--mysql-socket="+cwd+"/mysql_test/socket --table-size=1000000 prepare").split()
cmd = ("sysbench oltp_read_only --threads={} --time=10 "
"--db-driver=mysql --mysql-user=root --mysql-socket={}/mysql_test/socket run")
server_cmd = ("mysqld -h {0}/mysql_test --socket={0}/mysql_test/socket "
"--secure-file-priv=").format(cwd).split()
class Benchmark_MYSQL( Benchmark ):
def __init__(self):
self.file_name = "bench_mysql"
self.name = "MYSQL Stress Benchmark"
self.descrition = """See sysbench documentation."""
self.targets = copy.copy(common_targets)
del(self.targets["klmalloc"])
self.nthreads = range(1, multiprocessing.cpu_count() * 2 + 1)
self.results = {"args": {"nthreads" : self.nthreads},
"targets" : self.targets}
def start_and_wait_for_server(self, verbose, log=None):
if not log:
log = os.devnull
with open(log, "ab") as f:
self.server = subprocess.Popen(server_cmd, env=os.environ,
stdout=f,
stderr=f,
universal_newlines=True)
#TODO make sure server comes up !!!!
sleep(5)
return True
def prepare(self, verbose=False):
ret = True
# Setup mysqld
if not os.path.exists("mysql_test"):
print("Prepare mysqld directory and database")
os.makedirs("mysql_test")
# Init database
if b"MariaDB" in subprocess.run(["mysqld", "--version"],
stdout=subprocess.PIPE).stdout:
init_db_cmd = ["mysql_install_db", "--basedir=/usr",
"--datadir={}/mysql_test".format(os.getcwd())]
if verbose:
print("MariaDB detected")
else:
init_db_cmd = ["mysqld", "-h", "{}/mysql_test".format(os.getcwd()),
"--initialize-insecure"]
if verbose:
print("Oracle MySQL detected")
with open(os.devnull, "w") as devnull:
p = subprocess.run(init_db_cmd,
stdout=devnull, stderr=devnull)
ret = ret and p.returncode == 0
if not ret:
print(p.stderr)
return ret
if not self.start_and_wait_for_server(verbose, "mysqld.log"):
print("Starting mysqld failed")
return False
p = subprocess.run("mysql -u root -S {}/mysql_test/socket".format(cwd).split(" "),
input = b"CREATE DATABASE sbtest;\n")
ret = ret and p.returncode == 0
if not ret:
print(p.stderr)
self.server.kill()
self.server.wait()
return ret
print("Prepare test table")
p = subprocess.run(prepare_cmd)
ret = ret == p.returncode == 0
self.server.kill()
ret = ret and self.server.wait() == -9
return ret
def cleanup(self):
if os.path.exists("mysql_test"):
print("Delete mysqld directory")
shutil.rmtree("mysql_test")
def run(self, verbose=False, save=False, runs=3):
cwd = os.getcwd()
for run in range(1, runs + 1):
print(str(run) + ". run")
# run cmd for each target
n = len(self.nthreads)
for tname, t in self.targets.items():
# No custom build mysqld server supported yet.
os.environ["LD_PRELOAD"] = t[1] # set LD_PRELOAD
if not self.start_and_wait_for_server(verbose, "mysqld.log"):
print("Can't start server for", tname + ".")
print("Aborting Benchmark.")
return False
for i, thread in enumerate(self.nthreads):
print(tname + ":", i + 1, "of", n, "\r", end='')
target_cmd = cmd.format(thread, cwd).split(" ")
p = subprocess.run(target_cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE,
universal_newlines=True)
if p.returncode != 0:
print("\n" + " ".join(target_cmd), "exited with", p.returncode, ".\n Aborting Benchmark.")
print(tname, t)
print(p.stderr)
print(p.stdout)
self.server.kill()
self.server.wait()
return False
result = {}
result["transactions"] = re.search("transactions:\s*(\d*)", p.stdout).group(1)
result["queries"] = re.search("queries:\s*(\d*)", p.stdout).group(1)
# Latency
result["min"] = re.search("min:\s*(\d*.\d*)", p.stdout).group(1)
result["avg"] = re.search("avg:\s*(\d*.\d*)", p.stdout).group(1)
result["max"] = re.search("max:\s*(\d*.\d*)", p.stdout).group(1)
key = (tname, thread)
if not key in self.results:
self.results[key] = [result]
else:
self.results[key].append(result)
print()
# Get memory stats from server
if "memusage" not in self.results:
self.results["memusage"] = {}
ps = subprocess.run(["ps", "-F", str(self.server.pid)], stdout=subprocess.PIPE)
tokens = str(ps.stdout.splitlines()[1]).split()
self.results["memusage"][tname] = {"VSZ" : tokens[4], "RSS" : tokens[5]}
self.server.kill()
self.server.wait()
if save:
with open(self.name + ".save", "wb") as f:
pickle.dump(self.results, f)
return True
def summary(self):
# linear plot
nthreads = self.results["args"]["nthreads"]
targets = self.results["targets"]
y_mapping = {v: i for i, v in enumerate(nthreads)}
for target in targets:
y_vals = [0] * len(nthreads)
for mid, measures in self.results.items():
if mid[0] == target:
d = []
for m in measures:
d.append(int(m["transactions"]))
y_vals[y_mapping[mid[1]]] = np.mean(d)
plt.plot(nthreads, y_vals, label=target, linestyle='-', marker='.')
plt.legend()
plt.xlabel("threads")
plt.ylabel("transactions")
plt.title("sysbench oltp read only")
plt.savefig(self.file_name + ".l.ro.png")
plt.clf()
# bar plot
nthreads = list(self.results["args"]["nthreads"])
targets = self.results["targets"]
y_mapping = {v: i for i, v in enumerate(nthreads)}
for i, target in enumerate(targets):
y_vals = [0] * len(nthreads)
for mid, measures in self.results.items():
if mid[0] == target:
d = []
for m in measures:
d.append(int(m["transactions"]))
y_vals[y_mapping[mid[1]]] = np.mean(d)
plt.bar([x-i/8 for x in range(1, len(nthreads) + 1)], y_vals, width=0.2, label=target, align="center")
plt.legend()
plt.xlabel("threads")
plt.xticks(range(1, len(nthreads) + 1), nthreads)
plt.ylabel("transactions")
plt.title("sysbench oltp read only")
plt.savefig(self.file_name + ".b.ro.png")
plt.clf()
mysql = Benchmark_MYSQL()
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