Flashing cursor in the margin and poor performance in terminal with linum

[jbmorgado]

There is a noticeable performance penalty when using git-gutter in terminal mode and scrolling.

The cursor keeps flashing in the top left side of the screen (in the margin at the 1st line on the left) and I think it's what causes this that is slowing things down.

[syohex]

Yes git-gutter.el with linum makes too slow. Because linum updates line-number very frequently. If you want to such tools with linum, I recommend you to use diff-hl or git-gutter-fringe.

[gonewest818]

Is this still the case in 2020? I'm not seeing it in Emacs 27.0.90 in -nw mode.