# threading2vs4_timeit.py

# threading2vs4_timeit.py

import time
import threading

def background(f):
    '''
    a threading decorator
    use @background above the function you want to run in the background
    '''
    def bg_f(*a, **kw):
        threading.Thread(target=f, args=a, kwargs=kw).start()
    return bg_f
@background
def counter(name, n):
    '''show the millisecond name and count'''
    start = time.clock()
    for k in range(1, n+1):
        t = str(time.clock()-start)
        t = float(t[:t.index('.')+7])
        p.append([t, "{} count {}".format(name, k)])

# start the counters
# note that with the @background decorator

p = []
start = time.clock()
for z in range(2):
    counter("%d of 2 Threads "%(z+1), 500)
t = [(float(str(time.clock()-start)[:9]),'spooling 2')]
p.sort()
for z in p: print '{:.7f} \t {}'.format(z[0],z[1])
print

p = []
start = time.clock()
for z in range(4):
    counter("%s of 4 Threads "%(z+1), 250)
t += [(float(str(time.clock()-start)[:9]),'spooling 4')]
for z in p: print '{:.7f} \t {}'.format(z[0],z[1])
t.sort()
a,b = t
a,a2 = a
b,b2 = b
print
print 'At {}s, {} is {}x faster than {} which took {}s'.format(a,a2,str(b/a)[:6],b2,b)