> > > Place all the code in a function. Even without psyco you might get
> > > somewhat better performances then. And I doubt psyco can optimise code
> > > that isn't in a function anyway.
Another thing I wasn't considering is that the first call with psyco
enabled might be slower. The 2nd time the psyco-compiled function is
called is where the speed improvement may be present. With the code at
the bottom, I get these results:
without psyco = 0.000421282593179
first call with psyco = 0.000902349320933
with psyco = 5.30793718196e-005
first call with psyco = 114.190981432 % slower
2nd call with psyco = 87.400530504 % faster
import time
import psyco
def test(l):
result = 0
for item in l:
result += item
return result
l = list(range(0, 1000))
t1 = time.clock()
l2 = test(l)
t2 = time.clock()
no_psyco = t2 - t1
psyco.log()
psyco.bind(test)
t1 = time.clock()
l2 = test(l)
t2 = time.clock()
first_call_with_psyco = t2 - t1
t1 = time.clock()
l2 = test(l)
t2 = time.clock()
with_psyco = t2 - t1
print 'without psyco = ',no_psyco
print 'first call with psyco = ',first_call_with_psyco
print 'with psyco = ',with_psyco
first_delta = ((no_psyco - first_call_with_psyco)/no_psyco) * 100
delta = ((no_psyco - with_psyco)/no_psyco) * 100
if(first_delta > 0):
result = 'faster'
else:
result = 'slower'
print 'first call with psyco = ',abs(first_delta),'% ',result
if(delta > 0):
result = 'faster'
else:
result = 'slower'
print '2nd call with psyco = ',abs(delta),'% ',result
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