I have not seen any benchmarks supporting the claim that proposed limits would ACTUALLY have any positive performance effect. While some of the claims of performance gain are *plausible*, I also would not be very surprised if some of them caused performance loss.
For example, requiring bit masking to get information from words feels like it probably costs more than using extra words in the first place. On Mon, Dec 9, 2019, 9:08 AM Mark Shannon <m...@hotpy.org> wrote: > Hi everyone, > > Thanks again for all your comments on PEP 611. > > I would like to ask a favour; please be more specific in your comments. > > Ideally state which part of the PEP you are disagreeing with and why you > disagree with the relevant part of the rationale/motivation. > > Also, when asking for limits to be raised or removed entirely, could you > state what you perceive to be the costs and benefits of larger limits. > What do you believe is an acceptable cost in memory or runtime for > larger limits? > > For example, you might say that the limit of one million lines of code > per module is too small, and that it is worth a small, say 1%, impact on > speed to allow a larger of limit of 100 million. > > If you believe a limit would have no cost, then please give a > explanation of why that is so. > > Merely saying that you would like a larger limit is pointless. > If there were no cost to arbitrarily large limits, then I wouldn't have > proposed the PEP in the first place. > > Bear in mind that the costs of higher limits are paid by everyone, but > the benefits are gained by few. > > Cheers, > Mark. > _______________________________________________ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/ZXDAJKRVSF6UUE5UEPE5PMXYXOLJ5A4V/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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