From: Chris Gregory <czipperz@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Emacs Development Mailing List <emacs-devel@gnu.org>
Subject: Re: Define progn_ignore to run Fprogn and ignore output
Date: Tue, 27 Dec 2016 10:28:35 -0600 [thread overview]
Message-ID: <CAH6RvXjfAT2nD-irxH-SA=gAFuv6eYefwTHzk1O8iCVZNTfVFA@mail.gmail.com> (raw)
In-Reply-To: <83pokdx4z2.fsf@gnu.org>
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It was just a guess to be perfectly honest. I'll try to benchmark it
tomorrow. If it inlines the function to Fprogn then there is no benefit to
performance (assuming it elides the Lisp_Object completely). The code,
however, is cleaner now. I'll look through the rest of the code for Fprogn
usages.
Sincerely,
Chris Gregory
On Tue, Dec 27, 2016 at 12:26 AM, Eli Zaretskii <eliz@gnu.org> wrote:
> > From: Chris Gregory <czipperz@gmail.com>
> > Date: Mon, 26 Dec 2016 20:14:47 -0600
> >
> > This patch defines progn_ignore to do Fprogn but not return a result.
> > This will minorly speed up all operations using `unwind_body'.
>
> Thanks. Can you give some numbers that show what kind of speed-up
> this will yield?
>
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next prev parent reply other threads:[~2016-12-27 16:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-27 2:14 Define progn_ignore to run Fprogn and ignore output Chris Gregory
2016-12-27 6:26 ` Eli Zaretskii
2016-12-27 16:28 ` Chris Gregory [this message]
2016-12-27 18:45 ` Paul Eggert
2016-12-27 15:49 ` Alan Mackenzie
2016-12-27 16:28 ` Chris Gregory
-- strict thread matches above, loose matches on Subject: below --
2016-12-28 1:30 Chris Gregory
2016-12-28 6:26 ` Paul Eggert
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