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import atexit
import copy
import matplotlib.pyplot as plt
import numpy as np
import os
import re
import shutil
import subprocess
from subprocess import PIPE
import sys
from time import sleep
from src.globalvars import allocators
from src.benchmark import Benchmark
from src.util import *
cwd = os.getcwd()
prepare_cmd = ("sysbench oltp_read_only --db-driver=mysql --mysql-user=root "
"--mysql-socket=" + cwd + "/mysql_test/socket --tables=5 "
"--table-size=1000000 prepare").split()
cmd = ("sysbench oltp_read_only --threads={nthreads} --time=60 --tables=5 "
"--db-driver=mysql --mysql-user=root --mysql-socket="
+ cwd + "/mysql_test/socket run")
server_cmd = ("{0} -h {1}/mysql_test --socket={1}/mysql_test/socket "
"--secure-file-priv=").format(shutil.which("mysqld"), cwd).split()
class Benchmark_MYSQL(Benchmark):
def __init__(self):
self.name = "mysql"
self.descrition = """See sysbench documentation."""
# mysqld fails with hoard somehow
self.allocators = copy.copy(allocators)
if "hoard" in self.allocators:
del(self.allocators["hoard"])
self.args = {"nthreads": Benchmark.scale_threads_for_cpus(1)}
self.cmd = cmd
self.measure_cmd = ""
self.requirements = ["mysqld", "sysbench"]
atexit.register(self.terminate_server)
super().__init__()
def start_and_wait_for_server(self, cmd_prefix=""):
actual_cmd = cmd_prefix.split() + server_cmd
print_info("Starting server with:", actual_cmd)
self.server = subprocess.Popen(actual_cmd, stdout=PIPE, stderr=PIPE,
universal_newlines=True)
# TODO make sure server comes up !
sleep(10)
return self.server.poll() is None
def terminate_server(self):
if self.server:
if self.server.poll() == None:
print_info("Killing still running mysql server")
self.server.kill()
def prepare(self):
if not super().prepare():
return False
# Setup Test Environment
if not os.path.exists("mysql_test"):
print_status("Prepare mysqld directory and database")
os.makedirs("mysql_test")
# Init database
if b"MariaDB" in subprocess.run(["mysqld", "--version"],
stdout=PIPE).stdout:
init_db_cmd = ["mysql_install_db", "--basedir=/usr",
"--datadir="+cwd+"/mysql_test"]
print_info2("MariaDB detected")
else:
init_db_cmd = ["mysqld", "-h", cwd+"/mysql_test",
"--initialize-insecure"]
print_info2("Oracle MySQL detected")
p = subprocess.run(init_db_cmd, stdout=PIPE, stderr=PIPE)
if not p.returncode == 0:
print_error("Creating test DB failed with:", p.returncode)
print_debug(p.stderr, file=sys.stderr)
return False
if not self.start_and_wait_for_server():
print_error("Starting mysqld failed")
print_debug(self.server.stderr, file=sys.stderr)
return False
# Create sbtest TABLE
p = subprocess.run(("mysql -u root -S "+cwd+"/mysql_test/socket").split(" "),
input=b"CREATE DATABASE sbtest;\n",
stdout=PIPE, stderr=PIPE)
if not p.returncode == 0:
print_error("Creating test table failed with:", p.returncode)
print_debug(p.stderr, file=sys.stderr)
self.server.kill()
self.server.wait()
return False
print_status("Prepare test tables ...")
ret = True
p = subprocess.run(prepare_cmd, stdout=PIPE, stderr=PIPE)
if p.returncode != 0:
print_error("Preparing test tables failed with:", p.returncode)
print_debug(p.stdout, file=sys.stderr)
print_debug(p.stderr, file=sys.stderr)
ret = False
self.server.kill()
self.server.wait()
return ret
return True
def cleanup(self):
if os.path.exists("mysql_test"):
print_status("Delete mysqld directory")
shutil.rmtree("mysql_test")
def preallocator_hook(self, allocator, run, verbose):
if not self.start_and_wait_for_server(cmd_prefix=allocator[1]["cmd_prefix"]):
print_error("Can't start server for", allocator[0] + ".")
print_error("Aborting Benchmark.")
print_debug(allocator[1]["cmd_prefix"], file=sys.stderr)
print_debug(self.server.stderr, file=sys.stderr)
return False
def postallocator_hook(self, allocator, run, verbose):
self.server.kill()
self.server.wait()
def process_output(self, result, stdout, stderr, allocator, perm, verbose):
result["transactions"] = re.search("transactions:\s*(\d*)", stdout).group(1)
result["queries"] = re.search("queries:\s*(\d*)", stdout).group(1)
# Latency
result["min"] = re.search("min:\s*(\d*.\d*)", stdout).group(1)
result["avg"] = re.search("avg:\s*(\d*.\d*)", stdout).group(1)
result["max"] = re.search("max:\s*(\d*.\d*)", stdout).group(1)
with open("/proc/"+str(self.server.pid)+"/status", "r") as f:
for l in f.readlines():
if l.startswith("VmHWM:"):
result["rssmax"] = int(l.replace("VmHWM:", "").strip().split()[0])
break
def summary(self):
allocators = self.results["allocators"]
args = self.results["args"]
# linear plot
self.plot_single_arg("{transactions}",
xlabel='"threads"',
ylabel='"transactions"',
title='"sysbench oltp read only"',
filepostfix="l.ro")
# bar plot
for i, allocator in enumerate(allocators):
y_vals = []
for perm in self.iterate_args(args=self.results["args"]):
d = [int(m["transactions"]) for m in self.results[allocator][perm]]
y_vals.append(np.mean(d))
x_vals = [x-i/8 for x in range(1, len(y_vals) + 1)]
plt.bar(x_vals, y_vals, width=0.2, label=allocator, align="center",
color=allocators[allocator]["color"])
plt.legend()
plt.xlabel("threads")
plt.xticks(range(1, len(y_vals) + 1), self.results["args"]["nthreads"])
plt.ylabel("transactions")
plt.title("sysbench oltp read only")
plt.savefig(self.name + ".b.ro.png")
plt.clf()
# Memusage
self.plot_single_arg("{rssmax}",
xlabel='"threads"',
ylabel='"VmHWM in kB"',
title='"Memusage sysbench oltp read only"',
filepostfix="ro.mem")
# Colored latex table showing transactions count
d = {allocator: {} for allocator in allocators}
for perm in self.iterate_args(args=args):
for i, allocator in enumerate(allocators):
t = [float(x["transactions"]) for x in self.results[allocator][perm]]
m = np.mean(t)
s = np.std(t)/m
d[allocator][perm] = {"mean": m, "std": s}
mins = {}
maxs = {}
for perm in self.iterate_args(args=args):
cmax = None
cmin = None
for i, allocator in enumerate(allocators):
m = d[allocator][perm]["mean"]
if not cmax or m > cmax:
cmax = m
if not cmin or m < cmin:
cmin = m
maxs[perm] = cmax
mins[perm] = cmin
fname = ".".join([self.name, "transactions.tex"])
headers = [perm.nthreads for perm in self.iterate_args(args=args)]
with open(fname, "w") as f:
print("\\begin{tabular}{| l" + " l"*len(headers) + " |}", file=f)
print("Fäden / Allokator ", end=" ", file=f)
for head in headers:
print("& {}".format(head), end=" ", file=f)
print("\\\\\n\\hline", file=f)
for allocator in allocators:
print(allocator, end=" ", file=f)
for perm in self.iterate_args(args=args):
m = d[allocator][perm]["mean"]
s = "& \\textcolor{{{}}}{{{:.3f}}}"
if m == maxs[perm]:
color = "green"
elif m == mins[perm]:
color = "red"
else:
color = "black"
print(s.format(color, m), end=" ", file=f)
print("\\\\", file=f)
print("\end{tabular}", file=f)
mysql = Benchmark_MYSQL()
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