Message271427
I write a new version restoring the fast path for dict. It now uses PyDict_Next and seems to be much faster than the path using keys.
[cpython]$ ./python -m timeit -s 'from collections import OrderedDict; d = {"a":1,"c":2,"b":3,"d":4}' 'OrderedDict(d)'
1000000 loops, best of 3: 0.639 usec per loop
[cpython]$ ./python -m timeit -s 'from collections import OrderedDict; d = {"a":1,"c":2,"b":3,"d":4}' 'OrderedDict(d)'
1000000 loops, best of 3: 0.372 usec per loop |
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Date |
User |
Action |
Args |
2016-07-27 03:08:07 | xiang.zhang | set | recipients:
+ xiang.zhang, rhettinger, belopolsky, eric.snow, serhiy.storchaka, abarry, alakyadav |
2016-07-27 03:08:07 | xiang.zhang | set | messageid: <1469588887.76.0.0429939373551.issue27576@psf.upfronthosting.co.za> |
2016-07-27 03:08:07 | xiang.zhang | link | issue27576 messages |
2016-07-27 03:08:07 | xiang.zhang | create | |
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