Re: Emacs 23, so slow to refresh on Windows

[bogossian]

> AFAICS, the OP is interested in computer-generated files (dumps, logs,
> etc.), which presumably have lots of lines. The
> just-one-extremely-long-line file is a contrived example (not that
> these kind of files do not exist, but I suppose they aren't that
> common).

Exactly, the 8MB file was just a simple and easy to reproduce example,
that I could use in a small benchmark in order to get some figures.

Given that you're using the right font (such as 6x13 ou the bitmap 
version
of courier), even scrolling though a file whose lines are 1000 
characters long
will feel painfully slow with Emacs 23, while it was perfectly smooth 
with
previous versions.

But I have sometimes to open log files containing lines that can be 
tens of
thousands characters long. For such files, Emacs is totally unusable, 
every
move in the file resulting in a long hang.