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Re: cperl + isearch + font-lock-multiline sometimes very slow
From: |
Chong Yidong |
Subject: |
Re: cperl + isearch + font-lock-multiline sometimes very slow |
Date: |
Fri, 20 Oct 2006 18:52:17 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
Chong Yidong <address@hidden> writes:
>> (setq font-lock-multiline t)
>> (require 'printing "printing" 'no-error)
>> (fset 'perl-mode 'cperl-mode)
>>
>> With these 3 lines I can still observe the problem.
>> 1. Start emacs with .emacs containing the 3 lines above
>> 2. load a Perl file (not too small), I use perl5db.pl from the Perl
>> distribution
>> 3. Watch emacs CPU usage
>>
>> After approximaetly 25 seconds, the CPU usage climbs for nearly 3 minutes
>> to 55% and emacs behaves very sluggish. Afterwards emacs behaves normal.
>> No need for isearch, that was obviously a misinterpretation.
>
> I still can't reproduce this, using the above .emacs file and
> perl5db.pl.
To be precise, I save the above three lines into foo.el, and do
emacs -Q -l foo.el /usr/share/perl/5.8/perl5db.pl
After waiting several minutes and watching with `top', I observe that
Emacs' CPU usage never exceeds 4.5% (which is normal for jit stealth
fontification), and there is no sluggishness either in Emacs or other
programs. Maybe the scheduler in Solaris (which I noticed you are
using) behaves funny.
- cperl + isearch + font-lock-multiline sometimes very slow, Klaus Zeitler, 2006/10/19
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Richard Stallman, 2006/10/19
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Chong Yidong, 2006/10/20
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Klaus Zeitler, 2006/10/20
- Re: cperl + isearch + font-lock-multiline sometimes very slow, martin rudalics, 2006/10/21
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Chong Yidong, 2006/10/22
- Re: cperl + isearch + font-lock-multiline sometimes very slow, martin rudalics, 2006/10/22
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Chong Yidong, 2006/10/22
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Klaus Zeitler, 2006/10/23
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Stefan Monnier, 2006/10/23
- Re: cperl + isearch + font-lock-multiline sometimes very slow, Stefan Monnier, 2006/10/23
- Re: cperl + isearch + font-lock-multiline sometimes very slow, martin rudalics, 2006/10/22