from sqlalchemy import *
from sqlalchemy.orm import *
from testlib import *
-
+import time
db = create_engine('sqlite://')
metadata = MetaData(db)
Column('sex', Integer),
Column('age', Integer))
+
+def sa_unprofiled_inserts(n):
+ print "Inserting %s records into SQLite(memory) with SQLAlchemy"%n
+ i = Person_table.insert()
+ i.execute([{'name':'John Doe','sex':1,'age':35} for j in xrange(n)])
+ s = Person_table.select()
+
+def sqlite_unprofiled_inserts(n):
+ conn = db.connect().connection
+ c = conn.cursor()
+ persons = [('john doe', 1, 35) for i in xrange(n)]
+ c.executemany("insert into Person(name, sex, age) values (?,?,?)", persons)
+
@profiling.profiled('test_many_inserts', always=True)
def test_many_inserts(n):
print "Inserting %s records into SQLite(memory) with SQLAlchemy"%n
def all():
metadata.create_all()
try:
+ t = time.clock()
+ sqlite_unprofiled_inserts(100000)
+ t2 = time.clock()
+ print "sqlite unprofiled inserts took %d seconds" % (t2 - t)
+
+ Person_table.delete().execute()
+
+ t = time.clock()
+ sa_unprofiled_inserts(100000)
+ t2 = time.clock()
+ print "sqlalchemy unprofiled inserts took %d seconds" % (t2 - t)
+
+ Person_table.delete().execute()
+
test_many_inserts(50000)
finally:
metadata.drop_all()