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Re: cperl syntax mode latency is almost -> completely unusable


From: Ted Zlatanov
Subject: Re: cperl syntax mode latency is almost -> completely unusable
Date: Thu, 16 Nov 2006 18:26:04 +0000
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.50 (gnu/linux)

On 15 Nov 2006, address@hidden wrote:

> I am using Emacs 22.90 with cperl-mode. On small files the performance
> is acceptable and the features are very powerfull. On files > 500 lines
> or so it becomes a little laggy. In one particular file I have here docs
> nested inside of an anonymous hash. The latency is so high for cursor
> movement/inserting characters that I can type 10-15 characters before
> they appear on-screen. In fact if I didn't wait for emacs to catch up I
> suspect I could extend the input queue almost indefinitely.
>
> My Machine is old , but not slow; not for this at least. 
>
> uname -a = "Linux reforged 2.6.18.2 #1 PREEMPT Sat Nov 4 19:16:56 PST 2006
>       i686 AMD
> Athlon(tm) XP 3000+ AuthenticAMD GNU/Linux"
>
> If this is a known problem with a known fix any help would be
> appreciated. If this is a new issue then I will work up a
> reduced test case to repoduce it.

As a reference point, I've edited large files with cperl-mode and it
was fine.  Here docs were a little slow in my experience (without
them, highlighting happened faster), so maybe this is a problem with
here docs in particular.

Ted


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