From: Nick Dokos <ndokos@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: another example of org being slow, with some analysis
Date: Fri, 19 Jun 2015 09:53:55 -0400 [thread overview]
Message-ID: <87k2uz953g.fsf@pierrot.dokosmarshall.org> (raw)
In-Reply-To: 87wpz016gd.fsf@ucl.ac.uk
Eric S Fraga <e.fraga@ucl.ac.uk> writes:
> On Friday, 19 Jun 2015 at 08:19, Daniel Bausch wrote:
>
> [...]
>
>> Line 6000 is indeed quite "lame". I have similar problems like Eric. A
>> table recalculation at line 43868 takes about a minute at my quite fast
>> machine. I also tracked that down to org-current-line. One interesting
>> detail is that this depends on the buffer encoding. With ASCII the
>> recalculation takes less than a second, with utf-8 about a minute.
>
> Adding some data: my table is at line 8438 in the buffer but character
> position 398345 (I have very long lines as I use visual-line-mode in org
> exclusively with org-indent). I do use utf-8 encoding.
>
> I have just tried updating the table on a different laptop (i7-2760, 8
> cores, 8 GB RAM, Ubuntu) and it was very fast.
>
> The two laptops are running different versions of emacs (tracking latest
> emacs developments on Ubuntu and Debian testing lead to different
> versions unfortunately) so my gut feeling is that there is an emacs
> issue here and possibly one related to utf-8 as Daniel suggests.
>
> I'll try to do more instrumenting on my other laptop when I get a
> chance.
>
What is the setting of cache-long-scans you are using? Does it differ
on the two laptops?
Ivan Andrus suggested setting it to nil, but it seems that for this
case, leaving it at t (the default) should be much faster. But there
may be a bug in the cache code.
--
Nick
next prev parent reply other threads:[~2015-06-19 13:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 16:28 another example of org being slow, with some analysis Eric S Fraga
2015-06-18 18:30 ` Nick Dokos
2015-06-19 6:19 ` Daniel Bausch
2015-06-19 6:34 ` Daniel Bausch
2015-06-19 7:37 ` Nicolas Goaziou
2015-06-19 7:51 ` Eric S Fraga
2015-06-19 8:28 ` Daniel Bausch
2015-06-19 9:43 ` Eric S Fraga
2015-06-22 6:48 ` Daniel Bausch
2015-06-23 11:16 ` Eric S Fraga
2015-06-19 13:53 ` Nick Dokos [this message]
2015-06-19 14:19 ` Eric S Fraga
2015-06-22 7:07 ` Jacob Nielsen
2015-06-18 19:54 ` Ivan Andrus
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