From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: how to build emacs without documentation?
Date: Tue, 13 Aug 2013 19:32:02 +0300 [thread overview]
Message-ID: <83a9klpn5p.fsf@gnu.org> (raw)
In-Reply-To: <jwvzjslir38.fsf-monnier+gnu.emacs.help@gnu.org>
> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Date: Tue, 13 Aug 2013 10:51:51 -0400
>
> As for "info", well, that was pretty much immediate until Texinfo-5.0
> came along. So you might like to downgrade to Texinfo-4.x to enjoy
> a more normal speed.
I renamed the new makeinfo to makeinfo5, and keep the old v4.x one
under the name makeinfo.
> I still have no idea how they managed to slow things down so much.
Because they implemented makeinfo in Perl, and made it a real
translator, that builds an intermediate parse tree representation, and
then invokes an appropriate back-end to produce output. By contrast,
the original makeinfo was a one-pass converter which left most of the
text intact and just acted on the few directives, expanding them
in-line.
> It feels like it's a good 100 times slower. Actual measurement will
> probably show the slowdown factor to be smaller, but still the
> difference is insane.
The slowdown factor is around 18.
next prev parent reply other threads:[~2013-08-13 16:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.3001.1376231269.12400.help-gnu-emacs@gnu.org>
2013-08-13 14:51 ` how to build emacs without documentation? Stefan Monnier
2013-08-13 15:26 ` Rustom Mody
2013-08-13 16:32 ` Eli Zaretskii [this message]
[not found] ` <mailman.3136.1376411515.12400.help-gnu-emacs@gnu.org>
2013-08-14 16:49 ` Stefan Monnier
2013-08-14 17:56 ` Eli Zaretskii
2013-08-11 14:27 Gregor Zattler
2013-08-13 15:52 ` Glenn Morris
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