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bug#13869: 24.2; Theme slows emacs down


From: Eli Zaretskii
Subject: bug#13869: 24.2; Theme slows emacs down
Date: Mon, 04 Mar 2013 22:21:36 +0200

> Date: Mon, 04 Mar 2013 19:15:36 +0000
> From: Silviu Vlad Oprea <address@hidden>
> 
> On 04/03/13 18:54, Eli Zaretskii wrote:
> >> Date: Mon, 04 Mar 2013 18:40:53 +0000
> >> From: Silviu Vlad Oprea <address@hidden>
> >>
> >> Turns out it's because linum-mode. Once I enable it (M-x linum-mode
> >> RET), it lags every 2 seconds when scrolling, and it's very frustrating.
> >> The same happens with tabbar-mode (separately; If I enable both
> >> linum-mode and tabbar-mode, it's even worse).
> > With linum-mode, I see a 3-fold increase in CPU usage, but Emacs can
> > still keep up.  What CPU do you have there?
> Now fancy at all. Celeron(R) Dual-Core CPU T3000  @ 1.80GHz.

Could be why you see the problem, while I don't.

> > linum-mode kills many potential redisplay optimizations, so it's a
> > small wonder it makes the display engine work harder.
> Any idea how I could get the same effect (line numbers) w/o the lag? Is 
> there a better mode?

Maybe try nlinum.el from ELPA.





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