Re: [ jEdit-devel ] Super slow buffer with big files!

[Slava P. <sl...@je...>]

Corey,

The "long lines" problem is a known problem and is independent of the
file being large (eg, try opening a 1-line file with a 1000-character
line; it will be slow). I am planning on fixing it before 4.1final.

On Mon, 2002-09-16 at 17:27, Corey Taylor wrote:
> Hi,
> 
> Soft wrap is off. More accurate syntax highlighting is off, and I have a
> bunch of plug-ins but I'm not sure they are the problem since my linux jEdit
> has the same problem and has only a few plugins installed.
> 
> I think you could reproduce this problem rather easily. I think the problem
> is what Matthew mentioned in an e-mail recently:
> 
> "More specifically that I can tell, the problem only exists for me when
> the text of lines extend far into the right of the buffer. If I modify
> the same text file, and return the lines of text so that the text
> doesn't extend so far into the right of the buffer, jedit seems to be
> more responsive." --Matthew Hailstone
> 
> I think Matthew is right. If you have a lot of lines that extend very far to
> the right, scrolling becomes very slow, and borders on unresponsive. Mind
> you my machine is fast and has plenty of memory, so this shouldn't be a
> problem. If anyone wants to see what I mean, paste a whole bunch of lines
> about 4-8 KBs in size one after another then try to scroll. Make sure line
> wraps are off, otherwise scrolling will be normally fast. It's weird when I
> have line wrap on it scrolls fast, but when I have these super long lines
> that stretch far to the right, scrolling becomes very slow, but only in the
> sections that stretch very far to the right.
> 
> This is an easy problem to reproduce, and if I wasn't clear just e-mail me
> and I'll explain in more detail.
> 
> Once again, I'd be glad to try to come up with a solution, but I'm sure
> there are some developers on this list who can come up with a fix faster
> than me since I have no experience with the jEdit codebase. Thanks,
> 
> Corey
> 
> ----- Original Message -----
> From: "Slava Pestov" <sl...@je...>
> To: <jed...@li...>
> Sent: Monday, September 16, 2002 2:35 PM
> Subject: Re: [ jEdit-devel ] Super slow buffer with big files!
> 
> 
> > Hi,
> >
> > I would check a few settings:
> >
> > - Is soft wrap on?
> > - Is "more accurate syntax highlighting" on?
> > - What plugins do you have?
> >
> > To test I've opened 100Mb+ files in jEdit, which was sort of slow, but
> > 2Mb files should not have any slowdowns.
> >
> > Slava
> >
> > On Fri, 2002-09-13 at 20:31, Corey Taylor wrote:
> > > Hi I am having a problem with jEdit that I'd like to fix. Whenever I
> load a big text file, say a 2MB SQL file, the scrolling becomes very slow!
> > >
> > > Is this a problem with jEdit, or is this a limitation of the JVM. I
> imagine increasing buffer sizes could speed scrolling up with large ammounts
> of text. Has anyone found a solution to working with large ammounts of text
> quickly in jEdit? Oh yeah, and I did turn of all the options that slow stuff
> down like anti-aliasing, etc...
> > >
> > > If this is a problem with the jEdit code, perhaps I can lend my Java
> expertise in coming up with a fix? Or is there a simpler way to speed things
> up?
> > >
> > > Corey
> >
> >
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > --
> > -----------------------------------------------
> > jEdit Developers' List
> > jEd...@li...
> > https://lists.sourceforge.net/lists/listinfo/jedit-devel
> >
>