Comment 62 for bug 361843

Version: (using Devel)
Installed from: Compiled sources

The long text line when word wrapped in kate/kwrite makes everything (like cursor movement, text insertion, etc.) slow. The callgrind profile (attached) suggests that it's because line repaining takes most of the CPU time.

To reproduce, open any file with a long line which would wrap onto 30-40 "view" lines.

What's interesting is that when you move cursor towards the end of the long line, repainting becomes a little bit faster.