https://bugs.kde.org/show_bug.cgi?id=412991
magib...@hotmail.com changed:
What |Removed |Added
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CC| |magib...@hotmail.com
--- Comment #1 from magib...@hotmail.com ---
okular seems to be using software rendering. Hand dragging is even worse.
Here's a backtrace caught in the middle of slowliness:
> #0 0x00007f39306888a9 in __memmove_avx_unaligned_erms () from
> /usr/lib/libc.so.6
> #1 0x00007f3930fe6e5b in QImage::copy(QRect const&) const () from
> /usr/lib/libQt5Gui.so.5
> #2 0x00007f39310299de in QRasterPlatformPixmap::copy(QPlatformPixmap const*,
> QRect const&) () from /usr/lib/libQt5Gui.so.5
> #3 0x00007f393101fb28 in QPixmap::copy(QRect const&) const () from
> /usr/lib/libQt5Gui.so.5
> #4 0x00007f3929286fb3 in PagePainter::paintCroppedPageOnPainter(QPainter*,
> Okular::Page const*, Okular::DocumentObserver*, int, int, int, QRect const&,
> Okular::NormalizedRect const&, Okular::NormalizedPoint*) () from
> /usr/lib/qt/plugins/okularpart.so
> #5 0x00007f392929a81f in ?? () from /usr/lib/qt/plugins/okularpart.so
> #6 0x00007f39292b1567 in ?? () from /usr/lib/qt/plugins/okularpart.so
> #7 0x00007f39315ff0e6 in QWidget::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #8 0x00007f39316b020f in QFrame::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #9 0x00007f39292b64b6 in ?? () from /usr/lib/qt/plugins/okularpart.so
> #10 0x00007f3930b676d3 in
> QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
> from /usr/lib/libQt5Core.so.5
> #11 0x00007f39315bb4e4 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib/libQt5Widgets.so.5
> #12 0x00007f39315c4e11 in QApplication::notify(QObject*, QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #13 0x00007f3930b679c2 in QCoreApplication::notifyInternal2(QObject*,
> QEvent*) () from /usr/lib/libQt5Core.so.5
> #14 0x00007f39315f7a88 in QWidgetPrivate::sendPaintEvent(QRegion const&) ()
> from /usr/lib/libQt5Widgets.so.5
> #15 0x00007f39315f82fb in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
> const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
> /usr/lib/libQt5Widgets.so.5
> #16 0x00007f39315ce16c in ?? () from /usr/lib/libQt5Widgets.so.5
> #17 0x00007f39315ce5f9 in ?? () from /usr/lib/libQt5Widgets.so.5
> #18 0x00007f39315e68d7 in QWidgetPrivate::syncBackingStore() () from
> /usr/lib/libQt5Widgets.so.5
> #19 0x00007f39315ff4b0 in QWidget::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #20 0x00007f39317182e5 in QMainWindow::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #21 0x00007f3931fbd90c in KMainWindow::event(QEvent*) () from
> /usr/lib/libKF5XmlGui.so.5
> #22 0x00007f3932009538 in KXmlGuiWindow::event(QEvent*) () from
> /usr/lib/libKF5XmlGui.so.5
> #23 0x00007f39315bb4f5 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib/libQt5Widgets.so.5
> #24 0x00007f39315c4e11 in QApplication::notify(QObject*, QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #25 0x00007f3930b679c2 in QCoreApplication::notifyInternal2(QObject*,
> QEvent*) () from /usr/lib/libQt5Core.so.5
> #26 0x00007f39315cf0bd in ?? () from /usr/lib/libQt5Widgets.so.5
> #27 0x00007f39315d17e0 in ?? () from /usr/lib/libQt5Widgets.so.5
> #28 0x00007f39315e882f in QWidget::repaint(QRect const&) () from
> /usr/lib/libQt5Widgets.so.5
> #29 0x00007f39292986e1 in ?? () from /usr/lib/qt/plugins/okularpart.so
> #30 0x00007f39316b2831 in QAbstractScrollAreaPrivate::_q_vslide(int) () from
> /usr/lib/libQt5Widgets.so.5
> #31 0x00007f3930b93a11 in QMetaObject::activate(QObject*, int, int, void**)
> () from /usr/lib/libQt5Core.so.5
> #32 0x00007f39316b7ebf in QAbstractSlider::valueChanged(int) () from
> /usr/lib/libQt5Widgets.so.5
> #33 0x00007f39316b851c in QAbstractSlider::setValue(int) () from
> /usr/lib/libQt5Widgets.so.5
> #34 0x00007f39292a6d5b in ?? () from /usr/lib/qt/plugins/okularpart.so
> #35 0x00007f39292aeed0 in ?? () from /usr/lib/qt/plugins/okularpart.so
> #36 0x00007f39315ff0e6 in QWidget::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #37 0x00007f39316b020f in QFrame::event(QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #38 0x00007f39292b64b6 in ?? () from /usr/lib/qt/plugins/okularpart.so
> #39 0x00007f3930b676d3 in
> QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
> from /usr/lib/libQt5Core.so.5
> #40 0x00007f39315bb4e4 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib/libQt5Widgets.so.5
> #41 0x00007f39315c4f8a in QApplication::notify(QObject*, QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #42 0x00007f3930b679c2 in QCoreApplication::notifyInternal2(QObject*,
> QEvent*) () from /usr/lib/libQt5Core.so.5
> #43 0x00007f39315c413b in QApplicationPrivate::sendMouseEvent(QWidget*,
> QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool)
> () from /usr/lib/libQt5Widgets.so.5
> #44 0x00007f393161b391 in ?? () from /usr/lib/libQt5Widgets.so.5
> #45 0x00007f393161e2d4 in ?? () from /usr/lib/libQt5Widgets.so.5
> #46 0x00007f39315bb4f5 in QApplicationPrivate::notify_helper(QObject*,
> QEvent*) () from /usr/lib/libQt5Widgets.so.5
> #47 0x00007f39315c4e11 in QApplication::notify(QObject*, QEvent*) () from
> /usr/lib/libQt5Widgets.so.5
> #48 0x00007f3930b679c2 in QCoreApplication::notifyInternal2(QObject*,
> QEvent*) () from /usr/lib/libQt5Core.so.5
> #49 0x00007f3930f9dbf4 in
> QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
> () from /usr/lib/libQt5Gui.so.5
> #50 0x00007f3930f9f49b in
> QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
> () from /usr/lib/libQt5Gui.so.5
> #51 0x00007f3930f79afc in
> QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
> () from /usr/lib/libQt5Gui.so.5
> #52 0x00007f392bddbc51 in ?? () from /usr/lib/libQt5WaylandClient.so.5
> #53 0x00007f392ec543ee in g_main_context_dispatch () from
> /usr/lib/libglib-2.0.so.0
> #54 0x00007f392ec56201 in ?? () from /usr/lib/libglib-2.0.so.0
> #55 0x00007f392ec56241 in g_main_context_iteration () from
> /usr/lib/libglib-2.0.so.0
> #56 0x00007f3930bbfa03 in
> QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
> from /usr/lib/libQt5Core.so.5
> #57 0x00007f3930b664ec in
> QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
> /usr/lib/libQt5Core.so.5
> #58 0x00007f3930b6e326 in QCoreApplication::exec() () from
> /usr/lib/libQt5Core.so.5
> #59 0x0000559346a1a79a in ?? ()
> #60 0x00007f393054b153 in __libc_start_main () from /usr/lib/libc.so.6
> #61 0x0000559346a1be8e in ?? ()
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