On Sun, Dec 29, 2013 at 08:07:38PM +0100, Christoph Cullmann wrote: > if I play around with Kate on KF5, it laggs like hell the whole time. > > I tried to profile, but guess I am stuck a bit. How did you profile? I'd recommend using 'perf', it's pretty simple to use: - perf record ./kate - perf report -- Martin Sandsmark