Author vstinner
Recipients orent, rhettinger, serhiy.storchaka, vstinner
Date 2017-10-13.15:08:41
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Message-id <1507907321.61.0.213398074469.issue30156@psf.upfronthosting.co.za>
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> Removing this micro-optimization makes attribute access in namedtuple more than 1.5 times slower:
> Mean +- std dev: [python.default] 126 ns +- 4 ns -> [python] 200 ns +- 7 ns: 1.58x slower (+58%)

I wrote the PR 3985, it's only 20 ns slower (1.3x slower):

[ref] 80.4 ns +- 3.3 ns -> [fastcall] 103 ns +- 5 ns: 1.28x slower (+28%)

Maybe Python was optimized further in the meanwhile, or the slowdown is higher on your computer?
History
Date User Action Args
2017-10-13 15:08:41vstinnersetrecipients: + vstinner, rhettinger, orent, serhiy.storchaka
2017-10-13 15:08:41vstinnersetmessageid: <1507907321.61.0.213398074469.issue30156@psf.upfronthosting.co.za>
2017-10-13 15:08:41vstinnerlinkissue30156 messages
2017-10-13 15:08:41vstinnercreate