https://bugs.kde.org/show_bug.cgi?id=358526
--- Comment #2 from Kevin Funk <kf...@kde.org> --- Observations: - When no editor tabs open: Color switch is almost instant - With editor tabs open: Switch is indeed super slow, takes several seconds. Printing a few stack traces during the freeze revealed: #0 0x00007fe84d3b9c05 in QFontEngineFT::stringToCMap (this=0x61e00010c880, str=0x60b000511b88, len=5, glyphs=0x7ffc9a3ecac0, nglyphs=0x7ffc9a3eca88, flags=...) at ../gui/text/qfontengine_f t.cpp:1497 #1 0x00007fe864022cda in QFontEngineMulti::stringToCMap (this=0x61100158d480, str=0x60b000511b88, len=5, glyphs=0x7ffc9a3ecac0, nglyphs=0x7ffc9a3eca88, flags=...) at text/qfontengine.cpp:1 796 #2 0x00007fe8640440a0 in QTextEngine::shapeText (this=this@entry=0x610000121340, item=item@entry=0) at text/qtextengine.cpp:1006 #3 0x00007fe864044a7f in QTextEngine::shape (this=0x610000121340, item=item@entry=0) at text/qtextengine.cpp:1494 #4 0x00007fe8640584c5 in QTextLine::layout_helper (this=this@entry=0x7ffc9a3ece30, maxGlyphs=maxGlyphs@entry=2147483647) at text/qtextlayout.cpp:1766 #5 0x00007fe864058f99 in QTextLine::setLineWidth (this=this@entry=0x7ffc9a3ece30, width=<optimized out>) at text/qtextlayout.cpp:1531 #6 0x00007fe8678e6641 in KateRenderer::layoutLine (this=0x607000acafc0, lineLayout=..., maxwidth=944, cacheLayout=<optimized out>) at ../../src/render/katerenderer.cpp:1028 #7 0x00007fe8678ec8b1 in KateLayoutCache::line (this=this@entry=0x60600069b5a0, realLine=realLine@entry=35, virtualLine=virtualLine@entry=10) at ../../src/render/katelayoutcache.cpp:334 #8 0x00007fe8678ed281 in KateLayoutCache::updateViewCache (this=0x60600069b5a0, startPos=..., newViewLineCount=<optimized out>, newViewLineCount@entry=46, viewLinesScrolled=viewLinesScroll ed@entry=0) at ../../src/render/katelayoutcache.cpp:282 #9 0x00007fe86793a67f in KateViewInternal::doUpdateView (this=0x61600085e380, changed=<optimized out>, viewLinesScrolled=0) at ../../src/view/kateviewinternal.cpp:575 Feels like Kate is busy re-layouting the views? I'm still wondering why it's so slow, though (in my case I just had 4 tabs open) -- You are receiving this mail because: You are watching all bug changes.
