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# -*- coding: utf-8 -*-
"""
This module is a scratchpad for general development, testing & debugging
"""
from django.core.management.base import NoArgsCommand
from django.db.models import connection
from pprint import pprint
import sys
from pexp.models import *
num_objects=1000
def reset_queries():
connection.queries=[]
def show_queries():
print; print 'QUERIES:',len(connection.queries); pprint(connection.queries); print; reset_queries()
import time
###################################################################################
### benchmark wrappers
def print_timing(func, message='', iterations=1):
def wrapper(*arg):
results=[]
reset_queries()
for i in xrange(iterations):
t1 = time.time()
x = func(*arg)
t2 = time.time()
results.append((t2-t1)*1000.0)
res_sum=0
for r in results: res_sum +=r
median = res_sum / len(results)
print '%s%-19s: %.0f ms, %i queries' % (
message,func.func_name,
median,
len(connection.queries)/len(results)
)
sys.stdout.flush()
return wrapper
def run_vanilla_any_poly(func, iterations=1):
f=print_timing(func,' ', iterations)
f(nModelC)
f=print_timing(func,'poly ', iterations)
f(ModelC)
###################################################################################
### benchmarks
def bench_create(model):
for i in xrange(num_objects):
model.objects.create(field1='abc'+str(i), field2='abcd'+str(i), field3='abcde'+str(i))
#print 'count:',model.objects.count()
def bench_load1(model):
for o in model.objects.all():
pass
def bench_load1_short(model):
for i in xrange(num_objects/100):
for o in model.objects.all()[:100]:
pass
def bench_load2(model):
for o in model.objects.all():
f1=o.field1
f2=o.field2
f3=o.field3
def bench_load2_short(model):
for i in xrange(num_objects/100):
for o in model.objects.all()[:100]:
f1=o.field1
f2=o.field2
f3=o.field3
def bench_delete(model):
model.objects.all().delete()
###################################################################################
### Command
class Command(NoArgsCommand):
help = ""
def handle_noargs(self, **options):
func_list = [
( bench_delete, 1 ),
( bench_create, 1 ),
( bench_load1, 5 ),
( bench_load1_short, 5 ),
( bench_load2, 5 ),
( bench_load2_short, 5 )
]
for f,iterations in func_list:
run_vanilla_any_poly(f,iterations=iterations)
print
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