Abdelrazak Younes <you...@lyx.org> writes: >> One instance where .tex generation does cause a slowdown is with "View >> Source" open. While editing a large document with "Complete Source" >> checked, LyX can't keep up with my typing speed. This issue is >> insidious because the user may not realize that the "View Source" >> window is the cause. It makes LyX look painfully slow. Using a >> separate thread to update the "View Source" pane would be a tremendous >> improvement. >> > > This is indeed a good argument in favour of cloning the Buffer.
Nope. I just profiled with sysprof what happens when typing in UserGuide with LaTeX source shown (with full source). Conclusions are * it is painfully slow :) * 69% of time is spent in libQtGui itself * 4.3% of time is used to generate the full source code I guess that qtextedit does not like big texts... JMarc
