From: Chong Yidong <cyd@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Setting bidi-paragraph-direction in comint modes
Date: Wed, 15 Feb 2012 08:49:18 +0800 [thread overview]
Message-ID: <87haysgbu9.fsf@gnu.org> (raw)
In-Reply-To: <83d39hxptw.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 14 Feb 2012 19:55:07 +0200")
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Chong Yidong <cyd@gnu.org>
>> 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.
next prev parent reply other threads:[~2012-02-15 0:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 6:35 Setting bidi-paragraph-direction in comint modes Chong Yidong
2012-02-14 17:52 ` Stefan Monnier
2012-02-14 17:55 ` Eli Zaretskii
2012-02-15 0:49 ` Chong Yidong [this message]
2012-02-15 4:01 ` Eli Zaretskii
2012-02-15 6:24 ` Chong Yidong
2012-02-15 17:01 ` Eli Zaretskii
2012-02-17 5:44 ` Chong Yidong
2012-02-15 17:46 ` Johan Bockgård
2012-02-15 18:33 ` Eli Zaretskii
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