Author levkivskyi
Recipients Aaron Hall, barry, brett.cannon, eric.snow, gvanrossum, inada.naoki, levkivskyi, ned.deily, scoder, serhiy.storchaka, vstinner, yselivanov
Date 2018-02-17.18:27:40
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Message-id <1518892060.87.0.467229070634.issue31333@psf.upfronthosting.co.za>
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> Isn't 800 lines of C code too high price for speeding up ABCs creation?

800 lines of C code is not something hard to notice, so I suppose the answer is obvious for all people involved in the work on PR :-)

> ...this can save just several milliseconds at start-up.

The correct way to measure this is relative, not absolute. There are just few ABCs used by modules loaded at Python start-up, and it already allowed to save 10% of start-up time. My expectation is that the number will be similar for a typical Python app. Moreover, `isinstance` and `issubclass` (functions called often with ABCs) will be 1.5x faster.
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Date User Action Args
2018-02-17 18:27:40levkivskyisetrecipients: + levkivskyi, gvanrossum, barry, brett.cannon, scoder, vstinner, ned.deily, inada.naoki, eric.snow, serhiy.storchaka, yselivanov, Aaron Hall
2018-02-17 18:27:40levkivskyisetmessageid: <1518892060.87.0.467229070634.issue31333@psf.upfronthosting.co.za>
2018-02-17 18:27:40levkivskyilinkissue31333 messages
2018-02-17 18:27:40levkivskyicreate