Message242691
Here is a patch that adds a free list for 1-digit long objects.
$ ./python -m timeit -s "r = range(10**3)" -- "for i in r: pass"
Unpatched: 10000 loops, best of 3: 54.4 usec per loop
With free list: 10000 loops, best of 3: 38 usec per loop
With hacked range: 10000 loops, best of 3: 34.5 usec per loop
Python 2.7: 10000 loops, best of 3: 37.1 usec per loop
$ ./python -m timeit -s "r = list(range(10**3))" -- "for i in r: pass"
10000 loops, best of 3: 30.7 usec per loop
In Python 2.7:
$ ./python -m timeit -s "r = xrange(10**3)" -- "for i in r: pass"
10000 loops, best of 3: 41.4 usec per loop
$ ./python -m timeit -s "r = range(10**3)" -- "for i in r: pass"
10000 loops, best of 3: 37.1 usec per loop |
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Date |
User |
Action |
Args |
2015-05-06 17:37:23 | serhiy.storchaka | set | recipients:
+ serhiy.storchaka, rhettinger, mark.dickinson, pitrou, scoder, larry |
2015-05-06 17:37:23 | serhiy.storchaka | set | messageid: <1430933843.12.0.175833701047.issue24138@psf.upfronthosting.co.za> |
2015-05-06 17:37:23 | serhiy.storchaka | link | issue24138 messages |
2015-05-06 17:37:22 | serhiy.storchaka | create | |
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