Subject: Re: bug#18522: 24.4.50; mapcar is very slow

From: Andreas Schwab <[email-masked]>
Date: Sun, 21 Feb 2016 12:08:09 +0100

Peter Münster <[email-masked]> writes:

> It seems to me, that there is a problem with "progn":
>
> Slow emacs:
>                   - progn                                        4141  46%
>                    - let                                          436   4%
>
> Fast emacs:
>                   - progn                                         401  13%
>                    - let                                          345  11%
>
>
> What do you think?

progn is very simple, all its time is spent in evaluating the
arguments.  Does profile actually work for primitives?

Andreas.

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Andreas Schwab, [email-masked]
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