Author inada.naoki
Recipients inada.naoki, xiang.zhang
Date 2017-04-11.10:45:48
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Message-id <1491907548.26.0.262811882199.issue30040@psf.upfronthosting.co.za>
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> Isn't the latter case the more common one? Creating an empty dict and then populate it.

This is memory usage optimization, not performance optimization.
(But I think memory efficiency makes multi process application faster because L3 cache size is limited resource.)
Later case shows how performance penalty is large.
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2017-04-11 10:45:48inada.naokisetrecipients: + inada.naoki, xiang.zhang
2017-04-11 10:45:48inada.naokisetmessageid: <1491907548.26.0.262811882199.issue30040@psf.upfronthosting.co.za>
2017-04-11 10:45:48inada.naokilinkissue30040 messages
2017-04-11 10:45:48inada.naokicreate