For a 140kb textarea (the testcase in comment 0), inserting or deleting a line takes about a second or two for me, on a laptop that was brand-new-and-fast in July.
The really long wikipedia articles seem to be locked down so I can't edit them. ;)
As for why no one has reported this... my best guess is that people generally assume that our editing performance is sucky and so think this is normal. :(
For a 140kb textarea (the testcase in comment 0), inserting or deleting a line takes about a second or two for me, on a laptop that was brand-new-and-fast in July.
The behavior is quadratic, so doing it on something like http:// en.wikipedia. org/w/index. php?title= Economy_ of_Poland& action= edit (22KB of text) is a bit faster but still noticeably laggy. Doint it on something like http:// en.wikipedia. org/w/index. php?title= Seven_Years% 27_War& action= edit (55KB) is definitely laggy; 500ms at least.
The really long wikipedia articles seem to be locked down so I can't edit them. ;)
As for why no one has reported this... my best guess is that people generally assume that our editing performance is sucky and so think this is normal. :(