Message281037
I'm sorry, dict.fromkeys() didn't use PyDict_MergeFromSeq2().
This may be microbench for worst case:
$ ~/local/py35/bin/master -m perf timeit --rigorous --python ~/local/py35/bin/patched --compare-to ~/local/py35/bin/master -s 'L = [(i,i) for i in range(10000)]' -- 'dict(L)'
master: ......................................... 2.06 ms +- 0.11 ms
patched: ......................................... 2.16 ms +- 0.09 ms
Median +- std dev: [master] 2.06 ms +- 0.11 ms -> [patched] 2.16 ms +- 0.09 ms: 1.05x slower
$ ~/local/py27/bin/master -m perf timeit --rigorous --python ~/local/py27/bin/patched --compare-to ~/local/py27/bin/master -s 'L = [(i,i) for i in range(10000)]' -- 'dict(L)'
master: ......................................... 1.48 ms +- 0.06 ms
patched: ......................................... 1.57 ms +- 0.09 ms
Median +- std dev: [master] 1.48 ms +- 0.06 ms -> [patched] 1.57 ms +- 0.09 ms: 1.06x slower |
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Date |
User |
Action |
Args |
2016-11-17 12:34:56 | methane | set | recipients:
+ methane, rhettinger, larry, christian.heimes, ned.deily, duaneg, serhiy.storchaka, abarry, tehybel, Tim Mitchell |
2016-11-17 12:34:56 | methane | set | messageid: <1479386096.46.0.442865444957.issue27945@psf.upfronthosting.co.za> |
2016-11-17 12:34:56 | methane | link | issue27945 messages |
2016-11-17 12:34:56 | methane | create | |
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