mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 09:00:23 +08:00
This adds the Python files in the tests/ directory to be formatted with ./tools/codeformat.py. The basics/ subdirectory is excluded for now so we aren't changing too much at once. In a few places `# fmt: off`/`# fmt: on` was used where the code had special formatting for readability or where the test was actually testing the specific formatting.
61 lines
1.3 KiB
Python
61 lines
1.3 KiB
Python
# Source: https://github.com/python/pyperformance
|
|
# License: MIT
|
|
|
|
# Calculating some of the digits of π.
|
|
# This benchmark stresses big integer arithmetic.
|
|
# Adapted from code on: http://benchmarksgame.alioth.debian.org/
|
|
|
|
|
|
def compose(a, b):
|
|
aq, ar, as_, at = a
|
|
bq, br, bs, bt = b
|
|
return (aq * bq, aq * br + ar * bt, as_ * bq + at * bs, as_ * br + at * bt)
|
|
|
|
|
|
def extract(z, j):
|
|
q, r, s, t = z
|
|
return (q * j + r) // (s * j + t)
|
|
|
|
|
|
def gen_pi_digits(n):
|
|
z = (1, 0, 0, 1)
|
|
k = 1
|
|
digs = []
|
|
for _ in range(n):
|
|
y = extract(z, 3)
|
|
while y != extract(z, 4):
|
|
z = compose(z, (k, 4 * k + 2, 0, 2 * k + 1))
|
|
k += 1
|
|
y = extract(z, 3)
|
|
z = compose((10, -10 * y, 0, 1), z)
|
|
digs.append(y)
|
|
return digs
|
|
|
|
|
|
###########################################################################
|
|
# Benchmark interface
|
|
|
|
bm_params = {
|
|
(50, 25): (1, 35),
|
|
(100, 100): (1, 65),
|
|
(1000, 1000): (2, 250),
|
|
(5000, 1000): (3, 350),
|
|
}
|
|
|
|
|
|
def bm_setup(params):
|
|
state = None
|
|
|
|
def run():
|
|
nonlocal state
|
|
nloop, ndig = params
|
|
ndig = params[1]
|
|
for _ in range(nloop):
|
|
state = None # free previous result
|
|
state = gen_pi_digits(ndig)
|
|
|
|
def result():
|
|
return params[0] * params[1], "".join(str(d) for d in state)
|
|
|
|
return run, result
|