>>>>> "John" == John Levon <[EMAIL PROTECTED]> writes:
John> On Tue, Apr 05, 2005 at 02:18:58PM +0200, Jean-Marc Lasgouttes John> wrote: >> The font caching in qt2/qfont_loader.C uses a std::map which shows >> on gprof profiles (around 16% with all optimizations on and no >> assertions). It appears that Qt has its own font caching mechanism John> Finally! Good news. What are the heavy hitters now? Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls ms/call ms/call name 7.37 0.16 0.16 1463980 0.00 0.00 LyXText::getFont(Paragraph const&, int) const 6.45 0.30 0.14 3726822 0.00 0.00 FontIterator::operator*() const 5.53 0.42 0.12 4065851 0.00 0.00 LyXText::singleWidth(Paragraph const&, int, char, LyXFont const&) const 5.53 0.54 0.12 1465689 0.00 0.00 Paragraph::getFontSettings(BufferParams const&, int) const 5.07 0.65 0.11 159182 0.00 0.00 (anonymous namespace)::RowPainter::paintChars(int&, bool, bool) I am not sure I understand FontIterator::operator*(), since inlining it did not improve the situation. getFont and friends are a real problem (looking for current font at each character of a paragraph), and I think that the use of a FontIterator (or directly of Paragraph::getEndOfFontSpan) in for example RowPainter::paintChars would help. However, the RtL code in there scares me :) JMarc
