Re: [textadept] Re: Performance concern in editing HTML files

From: Brian Schott <>
Date: Tue, 9 Nov 2010 10:20:01 -0800

Try doing the same thing on SciTE. I've noticed that Scintilla's
scrolling performance has always been bad when using the arrow keys
like that.

On Tue, Nov 9, 2010 at 10:13 AM, Robert <> wrote:
> On Tue, Nov 9, 2010 at 7:03 PM, Robert <> wrote:
>> Russell,
>>> I still haven't tested other types of files but I thought I would add
>>> some information in case it's useful. The behaviour I have is that
>>> when I scroll up or down line-by-line, there's a slight lag with the
>>> display being updated. The lag is so great that when I release the up
>>> or down arrow key, the display keeps scrolling. In other words, it's
>>> struggling to keep up. Using the GNOME performance monitor I can see
>>> that when I am scrolling, the CPU load is extremely heavy. Admittedly
>>> this is on a laptop with an Intel Core 2 Solo CPU so it's not a
>>> monster but I wouldn't expect an editor to require significant
>>> resources. When I do the same with gedit, this behaviour doesn't
>>> happen.
>>> Interestingly I don't get the same behaviour from Textadept (portable,
>>> version 3.3) under Windows XP on my PC at work, although this is an
>>> Intel Core 2 Duo CPU.
>>> I still intend testing other files which require multiple lexers and
>>> reporting the test results here.
>>> - Russell
>> this is most likely related to one of the plugins/modules you are
>> using. I have the same lagging even in plain lua files. I'll try to
>> find out which one is causing this.
>> You can try starting Textadept with a clean userhome, e.g.
>> textadept -u ~/tatest
>> which will create a new directory tatest.
>> Robert
> Sorry, I can't reproduce this any more - I can confirm that CPU goes
> up to ~60% during the scrolling. Maybe it's only lagging when there is
> too much other load?
> Robert
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Received on Tue 09 Nov 2010 - 13:20:01 EST

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