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From: suvayu ali <fatkasuvayu+linux@gmail.com>
To: Alp Aker <alptekin.aker@gmail.com>
Cc: help-gnu-emacs@gnu.org,
	Andrew Michael Levin <andrew.m.levin@vanderbilt.edu>
Subject: Re: line numbers
Date: Mon, 4 Jun 2012 17:28:31 +0200	[thread overview]
Message-ID: <CAMXnza1ERvnJNcuH019G2yjuuBkoazqE5bETRHe=Gy-UbC-ecg@mail.gmail.com> (raw)
In-Reply-To: <CACxch4ob1zTwuAmbFNn08tsXMjUFdNiOVoD-+UhBZTBnOC6GaA@mail.gmail.com>

On Mon, Jun 4, 2012 at 4:56 PM, Alp Aker <alptekin.aker@gmail.com> wrote:
> On Mon, Jun 4, 2012 at 9:55 AM, suvayu ali <fatkasuvayu+linux@gmail.com> wrote:
>
>> A caveat. As far as I know linum mode shows line numbers using overlays.
>> This can be very expensive if the file is large (e.g. a log file, a
>> journal file etc). If possible I would advice the OP to adapt to not
>> using in-buffer line numbers and rely on line-number-mode for line
>> numbers on the mode line instead.
>
> linum-mode only creates as many overlays as is needed to cover that
> portion of a buffer that's visible at a given time; it removes them
> from locations that are no longer visible.  As a result, its
> performance is independent of buffer size.

In the real world things can be very different. ;)

AFAIR, there is a long history of Heisenbug like issue with linum-mode
and large org-mode files. If you are interested you can check the
org-mode archive.

-- 
Suvayu

Open source is the future. It sets us free.



  reply	other threads:[~2012-06-04 15:28 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-03 17:36 line numbers Andrew Michael Levin
2012-06-03 17:55 ` Michaël Bruneel
2012-06-03 18:18 ` Mark Skilbeck
2012-06-03 19:02   ` Andrew Michael Levin
2012-06-03 19:08     ` Drew Adams
2012-06-04  5:57     ` Bob Proulx
2012-06-04 13:55   ` suvayu ali
2012-06-04 14:56     ` Alp Aker
2012-06-04 15:28       ` suvayu ali [this message]
2012-06-04  6:30 ` Jai Dayal
2012-06-04 13:51   ` suvayu ali
2012-06-04 16:07     ` Jai Dayal
2012-06-04 16:15       ` suvayu ali
2012-06-04 16:24       ` Drew Adams
     [not found] <mailman.2202.1338745946.855.help-gnu-emacs@gnu.org>
2012-06-03 19:36 ` Dan Espen
2012-06-04  2:23   ` rusi
2012-06-04  6:23 ` Christian Kellermann
  -- strict thread matches above, loose matches on Subject: below --
2006-04-30 22:11 Gary Wessle
2006-05-01  2:43 ` Giorgos Keramidas
2006-05-01  3:55   ` Cameron Desautels
     [not found]   ` <mailman.1166.1146455721.9609.help-gnu-emacs@gnu.org>
2006-05-02  9:42     ` Gary Wessle
2006-05-01  6:33 ` Fredrik Bulow
2006-05-01  6:39 ` Burton Samograd
2003-01-16 17:24 andrew.maguire
2003-01-07  4:33 Matthew Low
2003-01-07  8:10 ` Benjamin Lewis
2003-01-07 20:17   ` Tuomo Takkula
2003-01-07 20:43     ` Benjamin Lewis
2003-01-13  8:44       ` Lee Sau Dan
2003-01-07 22:27   ` Bruce Korb
2003-01-09  2:45   ` Matthew Low
2003-01-09  5:18     ` Benjamin Lewis
     [not found]   ` <mailman.42.1041986128.21513.help-gnu-emacs@gnu.org>
2003-01-08 12:12     ` Reiner Steib
2003-01-13  8:44     ` Lee Sau Dan
2003-01-14 18:27       ` Kevin Rodgers
2003-01-20  7:50         ` Lee Sau Dan

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