https://bugs.freedesktop.org/show_bug.cgi?id=99130
--- Comment #14 from Dorota Czaplejewicz <dorota.czaplejewicz at collabora.co.uk> --- # cat /proc/consoles tty0 -WU (EC p ) 4:1 Upon further digging, the slow stack *seems* like this (may be wrong, the tracing tool is less useful with huge numbers of calls): console_unlock() call_console_drivers.isra.0.constprop.15() vt_console_print() lf() scrup() fbcon_scroll() fbcon_cursor() fbcon_redraw.isra.17() Inside of this, the delay is split up among many shorter calls, most time occupied by fbcon_putcs -> bit_putcs -> cfb_imageblit. -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20161221/186fef40/attachment-0001.html>