Skip to content

Instantly share code, notes, and snippets.

@giwa giwa/db_bench.py
Created Oct 4, 2014

Embed
What would you like to do?
Simple Bench mark for dbs via python api
# Bench mark for dbs via python api
# Support DBs
# - MongoDB via pymongo
# - Sqlite3 via sqlite3
#
import sys
import time
from pymongo import MongoClient
DB = "bench"
COLLECTION = TABLE = "test"
TABLE = "test"
OUT_TMP = """\
================================
Test: {test_name}
The number of insert data: {num_insert}
Insert time: {insert_time}
The number of select data: {num_select}
Select time: {select_time}
Error rate: {error}
================================
"""
class DBBench(object):
def __init__(self):
self._insert_num = None
self._insert_time = None
self._select_num = None
self._select_time = None
def insert_data(self, num):
raise NotImplementedError
def select_all_data(self):
raise NotImplementedError
def show(self):
print OUT_TMP.format(test_name=self.__class__.__name__,
num_insert=self._insert_num,
insert_time=self._insert_time,
num_select=self._select_num,
select_time=self._select_time,
error= 1 - self._insert_num / self._select_num)
class MongoBench(DBBench):
def __init__(self):
super(MongoBench, self).__init__()
self._con = MongoClient('localhost', 27017)
# Create db if not
self._db = self._con[DB]
# Drop collection if exsit
if COLLECTION in self._db.collection_names():
self._db[COLLECTION].drop()
self._col = self._db.create_collection(COLLECTION)
def insert_data(self, num):
self._insert_num = num
start_time = time.time()
for i in range(1, num + 1):
data = {str(i):i}
self._col.insert(data)
self._insert_time = time.time() - start_time
def select_all_data(self):
start_time = time.time()
i = 0
for data in self._col.find():
i += 1
self._select_time = time.time() - start_time
self._select_num = i
import sqlite3
CREATE_TABLE_SQLITE3="""\
CREATE TABLE IF NOT EXISTS test
(key text, value int)
"""
INSERT_SQLITE3="""\
INSERT INTO test
VALUES ({key}, {value})
"""
SELECT_SQLITE3="""\
SELECT * FROM test
"""
DROP_TABLE_SQLITE3="""\
DROP TABLE IF EXISTS test
"""
class Sqlite3Bench(DBBench):
def __init__(self, db="/tmp/test.db"):
super(Sqlite3Bench, self).__init__()
self._con = sqlite3.connect(db)
self._init_table()
def _init_table(self):
with self._con:
self._con.execute(DROP_TABLE_SQLITE3)
self._con.execute(CREATE_TABLE_SQLITE3)
def insert_data(self, num):
self._insert_num = num
start_time = time.time()
with self._con:
for i in range(1, num + 1):
sql = INSERT_SQLITE3.format(key=str(i),
value=str(i))
self._con.execute(sql)
self._insert_time = time.time() - start_time
def select_all_data(self):
start_time = time.time()
i = 0
for row in self._con.execute(SELECT_SQLITE3):
i += 1
self._select_time = time.time() - start_time
self._select_num = i
class Sqlite3MemoryBench(Sqlite3Bench):
def __init__(self):
super(Sqlite3MemoryBench, self).__init__(":memory:")
def run_db_benches(num):
dbs = [MongoBench(),
Sqlite3Bench(),
Sqlite3MemoryBench()]
results = list()
for db in dbs:
db.insert_data(num)
db.select_all_data()
results.append(db)
for result in results:
result.show()
if __name__ == "__main__":
if len(sys.argv) == 2:
print >> sys.stderr, "Usage: db_bench.py <number of data>"
exit(-1)
num = int(sys.argv[1])
run_db_benches(num)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.