On 6/10/05 12:32 PM, "Bennett Helm" <[EMAIL PROTECTED]> wrote:
> I have a 512MB iMac G4 (1.25GHz); it's surely not my hardware that's
> the issue.
> 
> Perhaps it's the configuration. Here's what I've got (compiled with
> gcc-3.3):
> 
> ./configure --with-frontend=qt --without-x
> --prefix=/Applications/LyX-140.app --enable-maintainer-mode
> --with-included-gettext --enable-optimization=-Os
> --disable-concept-checks --with-version-suffix
> --with-qt-dir=/Users/bennett/lyx/qt-mac-free-3.3.4 --without-aiksaurus
> 
> (which means I'm also using qt-mac-free-3.3.4). Furthermore, I've got:
> 
> LDFLAGS="-framework Carbon -framework OpenGL -framework AGL -framework
> QuickTime -lz"
> 
> Anything out of line here? Do you have something different?
> 
> Why do I say things are so slow as to be unusable? When I type into an
> empty document, lyx starts off (according to top) using about 20% of
> CPU. After I've finished typing 4 lines of text, CPU usage for lyx is
> up to about 45%. After 10 lines of text, it's up to 75%. By 15 lines of
> text, CPU usage is pegged at 100% overall, and text appears on screen
> only after a delay -- a delay which increases the longer the document
> is, at least up to a point. With a long document, when I type "The
> quick brown fox jumps over the lazy dogs." (which takes me about 7 or 8
> seconds), the delay goes up to 9 seconds *after* I finish typing before
> all the text appears. The complexity of the document -- whether with or
> without math, footnotes, bibliographical entries, cross-references,
> etc. -- seems not to be a factor.
> 
> Bennett
> 

I've been building with exactly the configuration specified in the
README.MacOSX file. I thought at one time I needed --disable-concept-checks,
but it turns out I've been mistakenly leaving off the 's' at the end for
some time (which I guess means the bogus flag was ignored). I just built
clean without it - after rerunning ./configure - to verify. I'm building on
Tiger, but before 4/29 I'd been building on 10.3 without seeing major
issues.

I do see the increase in processor use that you report - both on the Mac and
on Windows, increasing as the document grows but only if I hammer away at
the keyboard. Normal typing doesn't hit that hard on the processor and even
hammering doesn't give me delays. I don't know why we're seeing a
difference, but I have the same results on three machines (Powerbook, Mini,
G5).

I'm exposing my ignorance here, but I remember having to download a gettext
library at some point, from somewhere. Can a difference like this (assuming
yours is different than mine) have an effect?

Thanks
Rob


 

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