commit 1624639ec8a6c3c99e417a2990f2f02f0d0b6e10
author Lewis Russell <lewis6991@gmail.com> Tue Mar 29 11:38:17 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Tue Mar 29 11:38:17 2022 +0100
tree 108c6915932564f48432e6c5f56d04653597d180
parent 24565cf27bc28cbd73f10e5ddf1e4ef53038a426

patch 8.2.4644: redrawing too often when 'relativenumber' is set

Problem:    Redrawing too often when 'relativenumber' is set.
Solution:   Only redraw when the cursor line changed. (Lewis Russell,
            closes #10040)

src/change.c

diff --git a/src/change.c b/src/change.c
index 54ed684..afc32b7 100644
--- a/src/change.c
+++ b/src/change.c
@@ -641,7 +641,7 @@
 		set_topline(wp, wp->w_topline);
 #endif
 	    // Relative numbering may require updating more.
-	    if (wp->w_p_rnu)
+	    if (wp->w_p_rnu && xtra != 0)
 		redraw_win_later(wp, SOME_VALID);
 #ifdef FEAT_SYN_HL
 	    // Cursor line highlighting probably need to be updated with