https://bugs.documentfoundation.org/show_bug.cgi?id=160015
--- Comment #5 from Jeff Fortin Tam <[email protected]> --- Created attachment 200411 --> https://bugs.documentfoundation.org/attachment.cgi?id=200411&action=edit Sysprof capture - resizing Calc 25.2 GTK3 Cairo on GNOME 48 on a 4K screen Attaching a Sysprof performance profile from LibreOffice 25.2's GTK3 version from Fedora 42's repositories, with all debuginfo symbols installed for the whole of LibreOffice and all the stack (GTK3, Cairo, glib2, and the rest of the graphics stack). I was not able to see a difference when setting "use Skia" to true (even with the "force Skia" setting) in the advanced / expert experimental settings, it would give the exact same sysprof results. I was not able to test with the GTK4 version, because if I launch "SAL_USE_VCLPLUGIN=gtk4 libreoffice --calc", it crashes with a null pointer as soon as I try to enter an app like Calc or Writer (it doesn't crash at the LibreOffice global home screen, though). Beyond the fact that it's GTK3 and Cairo (which are not really GPU-accelerated like GTK4 and Skia would be), if you zoom in into one specific area of the sysprof flamegraph you can see a lot of costly stuff happening in VCL's PaintHelper, and ultimately... it still seems to be Cairo? If Skia should be in use there (while somehow Cairo is showing up) and there's an indication that I did my testing incorrectly, then let me know how I can ensure that Skia is being used (while running Fedora 42's package ideally, because that's the easiest to profile). -- You are receiving this mail because: You are the assignee for the bug.
