[issue33205] GROWTH_RATE prevents dict shrinking

[INADA Naoki]

INADA Naoki <songofacandy at gmail.com> added the comment:

# cap2.json is master (used*2 + dk_size/2)
# used3.json is patched (used*3)
$ ./python-master -m perf compare_to cap2.json used3.json  -G
Slower (2):
- rand_access(size=20): 2.67 ms +- 0.01 ms -> 2.80 ms +- 0.04 ms: 1.05x slower (+5%)
- rand_access(size=10): 2.70 ms +- 0.03 ms -> 2.80 ms +- 0.04 ms: 1.04x slower (+4%)

Faster (1):
- rand_access(size=50): 2.76 ms +- 0.06 ms -> 2.74 ms +- 0.02 ms: 1.01x faster (-1%)

Benchmark hidden because not significant (5): rand_access(size=2), rand_access(size=5), rand_access(size=100), rand_access(size=200), rand_access(size=500)

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Added file: https://bugs.python.org/file47512/dict_rand.py

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33205>
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