On Sep 21, 2005, at 11:56 AM, Jean-Marc Lasgouttes wrote:
"Bennett" == Bennett Helm <[EMAIL PROTECTED]> writes:
Bennett> I've just recompiled myself with --disable-stdlib-debug.
Bennett> Things in general (on Mac) seem to be faster *except* typing
Bennett> speed in long documents, which is not noticeably improved. I
Bennett> get the lag Angus describes even with typing normally (and
Bennett> I'm not a terrifically fast typist). I would say it's still
Bennett> unusable on Mac for anything but very short documents -- less
Bennett> than 2 pages.
If only we were able to get good profiles showing the problem...
I've tried! -- Perhaps I should use something other than Shark.app.
Suggestions?
What are the exact conditions where this happens? Does typing at the
end of a paragraph make things better? Is it really related to the
size of the document, or to the amount of text on screen?
I cannot -- even with gibberish -- type faster than LyX can handle
when the document is otherwise empty, and LyX doesn't use many
processor resources in this case.
After 5-10 lines of text are entered, it becomes noticeable that LyX
is consuming more processor time than it had, though it's still fast
enough that I don't detect a lag.
With more than 20 lines of text, it's possible for me to type fast
enough that the CPU is pegged at 100% and I begin to notice a lag,
though I would characterize it as usable.
With more than 25 lines, the lag is quite annoying: it takes a second
or so to catch up after typing in a sentence.
In every case, I'm simply typing ordinary text: no math insets, no
footnotes, no graphics, no nothing. Adding these things doesn't seem
to make a difference: the issue really has to do with normal text, as
far as I can see.
The issue seems to be the amount of text on the screen rather than
the size of the document: if I scroll down to the bottom of a large
document so that only a single line is visible on screen, I can type
at a normal speed. Moreover, the situation improves when I make the
LyX window very small and type, even when the window is filled with
text; conversely, larger windows seem to slow things down more.
When the screen is filled with text, there is only a slight
improvement in speed in typing at the end of a paragraph rather than
the middle. Typing in a new paragraph is the same as typing at the
end of an old paragraph.
Bennett
