From: Tianxiang Xiong <tianxiang.xiong@gmail.com>
To: Emacs developers <emacs-devel@gnu.org>
Subject: Performance issue w/ `cl-loop`s `collect...into`
Date: Sat, 7 Apr 2018 17:51:19 -0700 [thread overview]
Message-ID: <CACMkxix3sfb2-D-AT4Q9Wj5cQha+7Vs6nPTZQj8V7yRhhS0feA@mail.gmail.com> (raw)
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The following runs nearly instantaneously:
(progn
(cl-loop for i in (number-sequence 0 130000)
collect (cons (number-to-string i) i))
:done)
This seems to take a long time (didn't wait for it to finish):
(progn
(cl-loop for i in (number-sequence 0 130000)
collect (cons (number-to-string i) i) into pairs)
:done)
Is this a known issue? I couldn't find anything in the bug tracker about it.
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next reply other threads:[~2018-04-08 0:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-08 0:51 Tianxiang Xiong [this message]
2018-04-08 3:26 ` Performance issue w/ `cl-loop`s `collect...into` Clément Pit-Claudel
2018-04-08 5:56 ` Tianxiang Xiong
2018-04-08 6:12 ` Clément Pit-Claudel
2018-04-08 8:50 ` Tianxiang Xiong
2018-04-08 13:19 ` Clément Pit-Claudel
2018-04-08 16:07 ` Stefan Monnier
2018-04-08 19:58 ` Tianxiang Xiong
2018-04-08 21:13 ` Stefan Monnier
2018-04-08 23:29 ` Tianxiang Xiong
2018-04-09 1:10 ` Tianxiang Xiong
2018-04-09 1:59 ` Stefan Monnier
2018-04-09 2:16 ` Tianxiang Xiong
2018-04-09 2:20 ` Stefan Monnier
2018-04-09 3:34 ` Tianxiang Xiong
2018-04-09 3:38 ` Tianxiang Xiong
2018-04-09 12:07 ` Stefan Monnier
2018-04-09 12:22 ` Basil L. Contovounesios
2018-04-09 15:28 ` Tianxiang Xiong
2018-04-09 15:33 ` Tianxiang Xiong
2018-04-14 7:01 ` Tianxiang Xiong
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