On Mon, Jun 12, 2006 at 04:32:46PM +0200, Peter Kümmel wrote:
> Peter Kümmel wrote:
> > I don't think the event handling counts, because it shows
> > the uptime time of lyx, even when nothing is painted.
>
> This makes more sense (I've disabled all std::* calls):
>
> Name, Self visit time
>
> QRasterPaintEngine::drawTextItem, 5.622828
> qBlue, 5.467107
> QLFontInfo::width, 4.111963
> InsetList::insetIterator, 3.755528
> QRasterBuffer::resetBuffer, 2.911848
> ExtTextOutW, 1.485099 -> THIS is the Windows text painting function
> comp_func_solid_Source, 0.763000
> Paragraph::getChar, 0.617311
>
>
> Here the time which is spend in the different dlls/exe:
>
> QtGuid4.dll , 31.600339
^---
> lyx-qt4.exe , 21.862434
> QtCored4.dll, 3.386272
^----
> GDI32.dll , 2.411191
Well, profiling the non-optimized version is close to useless.
> This means when you code lyx in plain C by only
> using the GDI functions directly you could get
> a boost of factor 14 = (31.6+2.4)/2.4 - the upper
> limit for Trolltech's Qt/win32 optimizations. :)
> (You could also say Qt's overhead)
I like TT bashing as much as anybody else, but this is unfair.
Andre'
