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Re: Setting bidi-paragraph-direction in comint modes
From: |
Chong Yidong |
Subject: |
Re: Setting bidi-paragraph-direction in comint modes |
Date: |
Wed, 15 Feb 2012 08:49:18 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.93 (gnu/linux) |
Eli Zaretskii <address@hidden> writes:
>> From: Chong Yidong <address@hidden>
>> Date: Tue, 14 Feb 2012 14:35:52 +0800
>>
>> 1. emacs -Q
>> 2. M-x shell RET
>> 3. ls /usr/share/doc (Prints about 2000 lines on my computer)
>> 4. Repeat step 3 many times.
>>
>> As the buffer gets to about 8000 lines, redisplay slows to a crawl.
>
> I cannot reproduce this here. I tried the same in a directory with
> 2190 files, generated a 10K-line buffer with no empty lines, and I see
> no "crawl", only some minor slowdown. Maybe I didn't try the commands
> you did? Which Emacs commands caused such a slow redisplay on your
> machine?
Like I said, it's simply `ls /usr/share/doc'.
You say that there is "some minor slowdown": that's the same slowdown
I'm referring to, I think. On my machine, the performance difference
with and without bidi-paragraph-direction is extremely noticeable.