Bennett Helm wrote:
On Oct 26, 2006, at 2:32 PM, Bennett Helm wrote:
On Oct 26, 2006, at 3:40 AM, Abdelrazak Younes wrote:
...
As you can see in the second line, QLPainter::text() take the most
time. This is not surprising but the following lines between this
node an the following node at the same level (LyXText::getFont())
don't make the sum. There's some info in between that is missing.
Could you please (when you have time) have a look at it?
There's no info I have that you don't have. (Doesn't that mean that
QLPainter::text() is eating up more than 10000 ms or so all on its own?)
To confirm this, I've run the profile again. I've put a screen shot of
Shark's output here:
<http://edisk.fandm.edu/bennett.helm/LyX/lyx-mac-150-profile-2.jpg.zip>
(This one is even worse: QLPainter::text() eats up over 17 seconds out
of the 30 second profile -- if I understand it correctly.)
One more bit of information that might be useful: Shark can show the
amount of time specific lines of code use. Here is what it shows in the
relevant bit of QLPainter.C:
<http://edisk.fandm.edu/bennett.helm/LyX/QLPainter.C-profile.jpg.zip>
This one was very helpful Bennett, thank you. I cannot do much about the
drawText() operation as this is Qt API but I have changed the next line
that occupied 6 second to use the font width cache. In principle you
should at least see a 30% speed improvement!
Abdel.
