micropython: add micropython component

components/language/micropython/tests/perf_bench/bm_pidigits.py

@@ -0,0 +1,60 @@
+# 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