Author vstinner
Recipients Mark.Shannon, eric.snow, jeremy.kloth, jkloth, larry, maciej.szulik, nanjekyejoannah, ncoghlan, phsilva, rhettinger, shihai1991, vstinner
Date 2020-03-17.22:09:58
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Message-id <1584482999.07.0.0860750655891.issue39511@roundup.psfhosted.org>
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I expect that for objects which are not commonly modified by two interpreters "at the same time", it should be fine.

But None, True, small integer singletons, latin-1 str single character singletons, etc. objects are likely to be frequently accessed and so can become a bottleneck.

Moreover, Python has an infamous feature: write (modify ob_refcnt) on "read-only" access :-D See "Copy-on-Read" feature popularized by Instagram ;-)

https://instagram-engineering.com/copy-on-write-friendly-python-garbage-collection-ad6ed5233ddf
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Date User Action Args
2020-03-17 22:09:59vstinnersetrecipients: + vstinner, rhettinger, ncoghlan, larry, jkloth, phsilva, jeremy.kloth, Mark.Shannon, eric.snow, maciej.szulik, nanjekyejoannah, shihai1991
2020-03-17 22:09:59vstinnersetmessageid: <1584482999.07.0.0860750655891.issue39511@roundup.psfhosted.org>
2020-03-17 22:09:59vstinnerlinkissue39511 messages
2020-03-17 22:09:59vstinnercreate