From: Nikolaj Schumacher <me@nschum.de>
To: pjb@informatimago.com (Pascal J. Bourguignon)
Cc: help-gnu-emacs@gnu.org
Subject: Re: How to Reduce Emacs Load Time
Date: Sun, 31 Aug 2008 13:26:45 +0200 [thread overview]
Message-ID: <m2y72do26i.fsf@nschum.de> (raw)
In-Reply-To: <87r686rwmj.fsf@hubble.informatimago.com> (Pascal J. Bourguignon's message of "Sun\, 31 Aug 2008 00\:00\:52 +0200")
pjb@informatimago.com (Pascal J. Bourguignon) wrote:
Another tip:
Use `eval-after-load' a lot. With that you can load minor modes and
configurations only when a specific major mode has been (auto-)loaded.
I use this to load cedet only when cc-mode is loaded, for example.
> - don't load what you need, yet. This means, instead of loading or
> requiring the packages you may need, define autoloading functions.
> Good packages will do that for you, when you require them, they load
> only a file which defines autoloading functions, so you spend time
> loading the package only when you try to run these functions.
I don't think /good/ packages do that, just /huge/ packages.
IHMO the proper thing for packages to do is just add ;;;###autoload
markers, so /you/ can generate the autoloads automatically, if you want
them (using `update-directory-autoloads').
Package managers like ELPA will do that step automatically when the
package is updated.
I actually find it annoying if packages have their own autoloading,
because I need to exclude them specifically. Pretty much every other
package I can autoload automatically with something like this: (My
actual code is more complicated, so this is just a prototype...)
(defun update-autoloads ()
(dolist (file (directory-files package-dir t "[^.]" t))
(when (file-directory-p file)
(add-to-list 'loaddef-dirs file)))
(add-to-list 'loaddef-dirs package-dir)
(let ((generated-autoload-file autoload-file))
(apply 'update-directory-autoloads loaddef-dirs)))
and then just
(ignore-errors (load autoload-file))
I only need to define manual autoloads for three packages or so...
regards,
Nikolaj Schumacher
next prev parent reply other threads:[~2008-08-31 11:26 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-30 21:11 How to Reduce Emacs Load Time formido
2008-08-30 22:00 ` Pascal J. Bourguignon
2008-08-31 11:26 ` Nikolaj Schumacher [this message]
[not found] ` <mailman.18041.1220182012.18990.help-gnu-emacs@gnu.org>
2008-08-31 17:39 ` formido
2008-08-31 22:24 ` Nikolaj Schumacher
2008-08-31 17:50 ` formido
2008-09-08 12:38 ` Eric Ludlam
2008-08-30 22:05 ` Pascal J. Bourguignon
2008-08-30 22:03 ` formido
2008-08-31 11:59 ` Joost Diepenmaat
2008-08-31 9:39 ` Ivan Kanis
2008-08-31 12:35 ` Nikolaj Schumacher
[not found] ` <mailman.18043.1220186144.18990.help-gnu-emacs@gnu.org>
2008-08-31 20:01 ` Chetan
2008-08-31 11:39 ` David
[not found] ` <mailman.18042.1220182790.18990.help-gnu-emacs@gnu.org>
2008-08-31 17:42 ` formido
2008-08-31 19:10 ` David
2008-08-31 22:10 ` Nikolaj Schumacher
2008-08-31 22:20 ` David
[not found] ` <mailman.18077.1220220611.18990.help-gnu-emacs@gnu.org>
2008-08-31 22:36 ` formido
2008-09-02 18:04 ` Ken Goldman
2008-09-03 13:06 ` rustom
2008-09-03 17:06 ` Rupert Swarbrick
2008-09-04 11:01 ` rustom
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