test: new benchmark.py for comparing performance

Also, delete the old perf/ directory which isn't useful.

1 files changed, 0 insertions, 54 deletions

diff --git a/perf/bug397.py b/perf/bug397.py
deleted file mode 100644
index 18c979b8..00000000
--- a/perf/bug397.py
+++ /dev/null
@@ -1,54 +0,0 @@
-#!/usr/bin/env python
-"""
-Run this file two ways under coverage and see that the times are the same:
-
-    $ coverage run lab/bug397.py slow
-    Runtime per example: 130.96 +/- 3.70 us
-    $ coverage run lab/bug397.py fast
-    Runtime per example: 131.34 +/- 4.48 us
-
-Written by David MacIver as part of https://github.com/nedbat/coveragepy/issues/397
-
-"""
-
-import sys
-import random
-import time
-import math
-
-if sys.argv[1] == "slow":
-    sys.settrace(sys.gettrace())
-
-random.seed(1)
-
-
-def hash_str(s):
-    h = 0
-    for c in s:
-        h = (h * 31 + ord(c)) & (2 ** 64 - 1)
-    return h
-
-data = [
-    hex(random.getrandbits(1024)) for _ in range(500)
-]
-
-N_SAMPLES = 100
-
-
-def mean(xs):
-    xs = list(xs)
-    return sum(xs) / len(xs)
-
-
-def sd(xs):
-    return math.sqrt(mean(x ** 2 for x in xs) - mean(xs) ** 2)
-
-
-if __name__ == '__main__':
-    timing = []
-    for _ in range(N_SAMPLES):
-        start = time.time()
-        for d in data:
-            hash_str(d)
-        timing.append(1000000 * (time.time() - start) / len(data))
-    print("Runtime per example:", f"{mean(timing):.2f} +/- {sd(timing):.2f} us")