patch 8.2.2707: adding a lot of completions can still be a bit slow Commit: https://github.com/vim/vim/commit/ceb06194337f1a9d30cd12edb7b0dc51830b9cb7 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 4 15:05:22 2021 +0200 patch 8.2.2707: adding a lot of completions can still be a bit slow Problem: Adding a lot of completions can still be a bit slow. Solution: Add the check for CP_FAST. (Ben Jackson)

Test for writing and reading a file of over 100 Kbyte

1 line: "This is the start"
3001 lines: "This is the leader"
1 line: "This is the middle"
3001 lines: "This is the trailer"
1 line: "This is the end"

STARTTEST
:%d
aThis is the start
This is the leader
This is the middle
This is the trailer
This is the endkY3000p2GY3000p
:w! Xtest
:%d
:e! Xtest
:.w! test.out
3003G:.w >>test.out
6005G:.w >>test.out
:qa!
ENDTEST