# On Android 14, Termux app, Python 3.11, Qualcomm Snapdragon 8 gen 2, Samsung Fold 5.
# Surprisingly faster than macOS for a mobile, though Android is Linux under the hood,
# and these are different Pythons which may vary arbitrarily (3.11 here, 3.12 on macOS).
# Also note that this is pure CPU time: disk access may not fare as well on Android,
# especially when using shared storage (e.g., /sdcard) throttled in recent Androids.


# timer

~/.../LP6E/Chapter21 $ python timer_tests.py
Python 3.11.4 on linux
forLoop  : 0.21047 => [0…9999]
listComp : 0.16463 => [0…9999]
mapCall  : 0.12529 => [0…9999]
genExpr  : 0.33828 => [0…9999]
genFunc  : 0.33615 => [0…9999]
All results same.

~/.../LP6E/Chapter21 $ python timer_tests2.py
Python 3.11.4 on linux
forLoop  : 0.21849 => [10…10009]
listComp : 0.18615 => [10…10009]
mapCall  : 0.43246 => [10…10009]
genExpr  : 0.36506 => [10…10009]
genFunc  : 0.36671 => [10…10009]
All results same.

~/.../LP6E/Chapter21 $ python timer_tests3.py
Python 3.11.4 on linux
forLoop  : 0.36459 => [0…9999]
listComp : 0.33162 => [0…9999]
mapCall  : 0.32858 => [0…9999]
genExpr  : 0.49393 => [0…9999]
genFunc  : 0.49412 => [0…9999]
All results same.


# pybench

~/.../LP6E/Chapter21 $ python pybench_tests.py
Python 3.11.4 on linux at Jul-01-2024, 09:12:27
0.0380  '[x ** 2 for x in range(1000)]'
0.0402  'res=[]\nfor x in range(1000): res.append(x ** 2)'
0.0650  'list(map(lambda x: x ** 2, range(1000)))'
0.0563  'list(x ** 2 for x in range(1000))'
0.3109  "s = 'hack' * 2500\nx = [s[i] for i in range(10_000)]"
0.5676  "s = '?'\nfor i in range(10_000): s += '?'"

~/.../LP6E/Chapter21 $ python pybench_tests2.py
Python 3.11.4 on linux at Jul-01-2024, 09:13:13
0.0488  '{x ** 2 for x in range(1000)}'
0.0673  'set(x ** 2 for x in range(1000))'
0.0556  's=set()\nfor x in range(1000): s.add(x ** 2)'
0.0501  '{x: x ** 2 for x in range(1000)}'
0.0920  'dict((x, x ** 2) for x in range(1000))'
0.0536  'd={}\nfor x in range(1000): d[x] = x ** 2'

~/.../LP6E/Chapter21 $ python pybench_tests3.py
Python 3.11.4 on linux at Jul-01-2024, 09:13:46
0.2231  "res=[]\nfor x in 'hack' * 2500: res.append(ord(x))"
0.1834  "[ord(x) for x in 'hack' * 2500]"
0.1428  "list(map(ord, 'hack' * 2500))"
0.3574  "list(ord(x) for x in 'hack' * 2500)"