Speed difference in Gnus

[Hrvoje Niksic]

Ben Wing <ben at xemacs.org> writes:

> first of all, are you sure you're running without error-checking?

Yes.  I'm comparing Debian's XEmacs 21.4.17 with Debian's GNU Emacs
21.4.1.  I've known for a few years that Summary buffers exhibited
quadratic complexity, I just never imagined it could be really linear
under FSF.

> it's also still possible it's the text property implementation.
[...]
> but maybe you're right about the textprops not being the culprit;
> the only way they could be inside of insert is through
> `adjust_extents()' or friends ...

And those insertions are pretty normal -- I tracked them using an
"advice"-style logger.  They simply insert stuff into the buffer, I
don't think there's even much jumping around.