Author serhiy.storchaka
Recipients alexandre.vassalotti, pitrou, rhettinger, serhiy.storchaka
Date 2013-05-04.08:08:18
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Marked as misclassified Yes
Message-id <1367654898.78.0.241007787735.issue17900@psf.upfronthosting.co.za>
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Content
In additional the patch decreases the size of the pickled data, speeds up pickling and unpickling.

$ ./python -c "import collections, pickle; od = collections.OrderedDict((i, i) for i in range(100000)); print(len(pickle.dumps(od)))"

Without patch: 1536827.
With patch: 737578.

$ ./python -m timeit -s "from pickle import dumps; import collections; od = collections.OrderedDict((i, i) for i in range(100000))"  "dumps(od)"

Without patch: 454 msec.
With patch: 361 msec.

$ ./python -m timeit -s "from pickle import dumps, loads; import collections; od = collections.OrderedDict((i, i) for i in range(100000)); x = dumps(od)"  "loads(x)"

Without patch: 1.41 sec.
With patch: 1.15 sec.
History
Date User Action Args
2013-05-04 08:08:18serhiy.storchakasetrecipients: + serhiy.storchaka, rhettinger, pitrou, alexandre.vassalotti
2013-05-04 08:08:18serhiy.storchakasetmessageid: <1367654898.78.0.241007787735.issue17900@psf.upfronthosting.co.za>
2013-05-04 08:08:18serhiy.storchakalinkissue17900 messages
2013-05-04 08:08:18serhiy.storchakacreate