patch 8.1.0374: moving the cursor is slow when 'relativenumber' is set commit https://github.com/vim/vim/commit/bd9a53c06c8869ad811cb3dd01a309c9be7d7a63 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 12 23:15:48 2018 +0200 patch 8.1.0374: moving the cursor is slow when 'relativenumber' is set Problem: Moving the cursor is slow when 'relativenumber' is set. Solution: Only redraw the number column, not all lines.

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")