From: Matt Lundin <mdl@imapmail.org>
To: Nicolas Goaziou <n.goaziou@gmail.com>
Cc: Emacs-orgmode list <emacs-orgmode@gnu.org>
Subject: Re: org-element checks make flyspell prohibitively slow
Date: Fri, 21 Mar 2014 13:56:56 -0500 [thread overview]
Message-ID: <87a9cjnzwn.fsf@fastmail.fm> (raw)
In-Reply-To: <87siqgcygd.fsf@gmail.com> (Nicolas Goaziou's message of "Mon, 17 Mar 2014 22:22:26 +0100")
Hi Nicolas,
Nicolas Goaziou <n.goaziou@gmail.com> writes:
> Matt Lundin <mdl@imapmail.org> writes:
>
>> The rewrite of org-mode-flyspell-verify in commit
>> 4a27c2b4b67201e0b23f431bdaeb6460b31e1394 (Nov 21, 2013) makes navigating
>> org-mode files with large chunks of text very slow.
>
> [...]
>
>> => Org-mode version 8.2.5h (release_8.2.5h-757-gc444e4 @
>> /home/matt/org-mode/lisp/)
>
> Could you update and try again? Parser's cache was inadvertently
> disabled. I re-enabled it.
Yes, I can confirm that it is faster now. Thanks.
>> core/acl 2.2.52-2 [installed]
>> Access control list utilities, libraries and headers
>> core/archlinux-keyring 20140220-1 [installed]
>> Arch Linux PGP keyring
>> core/attr 2.4.47-1 [installed]
>> Extended attribute support library for ACL support
>> core/autoconf 2.69-1 (base-devel) [installed]
>> A GNU tool for automatically configuring source code
>> core/automake 1.14.1-1 (base-devel) [installed]
>> A GNU tool for automatically creating Makefiles
>>
>> All in all, it's 12680 lines....
>
> Note that it is a contrived example: the whole buffer is a single
> paragraph containing around 150 objects. The current algorithm for
> `org-element-context' is clearly not on par with such a density of
> objects per paragraph.
Yes, it is indeed a contrived example. I originally thought I had a use
for it --- i.e., analyzing the packages I had installed --- but soon
realized that such a task is better accomplished in a separate text
file.
> Also, cache cannot help here, because each time you edit a paragraph,
> all objects within are removed from the cache (because, AFAIK, there
> is no way to know if the edition altered a previously parsed object or
> not, so, as a security measure, all of them are wiped out) and you
> have to parse them again.
>
> Therefore, navigation should be fast but editing (with flyspell-mode
> enabled) is going to be slow.
Good to know.
Thanks again!
Matt
prev parent reply other threads:[~2014-03-21 18:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-17 14:32 org-element checks make flyspell prohibitively slow Matt Lundin
2014-03-17 21:22 ` Nicolas Goaziou
2014-03-21 18:56 ` Matt Lundin [this message]
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