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Barry Warsaw 2012-09-25 10:48:25 -04:00
commit 296b21a479
1 changed files with 28 additions and 18 deletions
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22
Modules/_decimal/tests/bench.py
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@ -10,7 +10,10 @@
import time import time
from math import log, ceil from math import log, ceil
from test.support import import_fresh_module try:
from test.support import import_fresh_module
except ImportError:
from test.test_support import import_fresh_module
C = import_fresh_module('decimal', fresh=['_decimal']) C = import_fresh_module('decimal', fresh=['_decimal'])
P = import_fresh_module('decimal', blocked=['_decimal']) P = import_fresh_module('decimal', blocked=['_decimal'])
@ -69,8 +72,12 @@ print("# ======================================================================\
for prec in [9, 19]: for prec in [9, 19]:
print("\nPrecision: %d decimal digits\n" % prec) print("\nPrecision: %d decimal digits\n" % prec)
for func in [pi_float, pi_cdecimal, pi_decimal]: to_benchmark = [pi_float, pi_decimal]
if C is not None:
to_benchmark.append(pi_cdecimal)
for func in to_benchmark:
start = time.time() start = time.time()
if C is not None:
C.getcontext().prec = prec C.getcontext().prec = prec
P.getcontext().prec = prec P.getcontext().prec = prec
for i in range(10000): for i in range(10000):
@ -84,15 +91,17 @@ print("\n# =====================================================================
print("# Factorial") print("# Factorial")
print("# ======================================================================\n") print("# ======================================================================\n")
c = C.getcontext() if C is not None:
c.prec = C.MAX_PREC c = C.getcontext()
c.Emax = C.MAX_EMAX c.prec = C.MAX_PREC
c.Emin = C.MIN_EMIN c.Emax = C.MAX_EMAX
c.Emin = C.MIN_EMIN
for n in [100000, 1000000]: for n in [100000, 1000000]:
print("n = %d\n" % n) print("n = %d\n" % n)
if C is not None:
# C version of decimal # C version of decimal
start_calc = time.time() start_calc = time.time()
x = factorial(C.Decimal(n), 0) x = factorial(C.Decimal(n), 0)
@ -116,4 +125,5 @@ for n in [100000, 1000000]:
print("calculation time: %fs" % (end_calc-start_calc)) print("calculation time: %fs" % (end_calc-start_calc))
print("conversion time: %fs\n\n" % (end_conv-start_conv)) print("conversion time: %fs\n\n" % (end_conv-start_conv))
if C is not None:
assert(sx == sy) assert(sx == sy)