GNU bug report logs - #18522
occasional slow performance in some Gnus code

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Message #93 received at 18522 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Peter Münster <pmlists <at> free.fr>
Cc: Eli Zaretskii <eliz <at> gnu.org>, larsi <at> gnus.org, 18522 <at> debbugs.gnu.org
Subject: Re: bug#18522: 24.4.50; mapcar is very slow
Date: Sun, 21 Feb 2016 12:08:09 +0100

Peter Münster <pmlists <at> free.fr> 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.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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