Message 353964 - Python tracker

Message353964

Author	serhiy.storchaka
Recipients	brandtbucher, serhiy.storchaka
Date	2019-10-04.17:56:00
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1570211760.62.0.315810100386.issue38328@roundup.psfhosted.org>
In-reply-to

Content
Great! I withdrew the original proposition in issue33325 because the part of the optimization was not so good as I expected. But this part is good. $ ./python -m timeit "[$(seq -s, 10)]" 5000000 loops, best of 5: 75.5 nsec per loop $ ./python -m timeit "[($(seq -s, 10))]" 5000000 loops, best of 5: 57.2 nsec per loop Would you consider to optimize also creating a set of constants? $ ./python -m timeit "{$(seq -s, 10)}" 2000000 loops, best of 5: 186 nsec per loop $ ./python -m timeit -s "a = frozenset(($(seq -s, 10)))" "{a}" 2000000 loops, best of 5: 116 nsec per loop

Content

Great! I withdrew the original proposition in issue33325 because the part of the optimization was not so good as I expected. But this part is good.

$ ./python -m timeit "[$(seq -s, 10)]"
5000000 loops, best of 5: 75.5 nsec per loop
$ ./python -m timeit "[*($(seq -s, 10))]"
5000000 loops, best of 5: 57.2 nsec per loop

Would you consider to optimize also creating a set of constants?

$ ./python -m timeit "{$(seq -s, 10)}"
2000000 loops, best of 5: 186 nsec per loop
$ ./python -m timeit -s "a = frozenset(($(seq -s, 10)))"  "{*a}"
2000000 loops, best of 5: 116 nsec per loop

History
Date	User	Action	Args
2019-10-04 17:56:00	serhiy.storchaka	set	recipients: + serhiy.storchaka, brandtbucher
2019-10-04 17:56:00	serhiy.storchaka	set	messageid: <1570211760.62.0.315810100386.issue38328@roundup.psfhosted.org>
2019-10-04 17:56:00	serhiy.storchaka	link	issue38328 messages
2019-10-04 17:56:00	serhiy.storchaka	create