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import copy
import matplotlib.pyplot as plt
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.name = "mysql"
self.descrition = """See sysbench documentation."""
if "klmalloc" in self.targets:
self.targets = copy.copy(common_targets)
del(self.targets["klmalloc"])
self.nthreads = range(1, psutil.cpu_count() * 2 + 1)
self.results = {"args": {"nthreads" : self.nthreads},
"targets" : self.targets,
"memusage": {t : [] for t in 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 = psutil.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
# Get initial memory footprint
for m in p.memory_maps():
if "[heap]" in m:
self.results["memusage"][tname].append({"heap_start" : m.size)
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 final memory footprint
for m in p.memory_maps():
if "[heap]" in m:
self.results["memusage"][tname].append({"heap_end" : m.size)
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.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.name + ".b.ro.png")
plt.clf()
# memusage
for target, measures in self.results["memusage"].items():
heap_growth = []
for m in measures:
rss_growth.append(int(m["heap_end"]) - int(m["heap_start"]))
print(target, "memory footprint:")
print("\t avg heap growth:", np.mean(heap_growth))
mysql = Benchmark_MYSQL()
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