patch 8.1.2225: the "last used" info of a buffer is under used Commit: https://github.com/vim/vim/commit/52410575be50d5c40bbe6380159df48cfc382ceb Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 27 05:12:45 2019 +0100 patch 8.1.2225: the "last used" info of a buffer is under used Problem: The "last used" info of a buffer is under used. Solution: Add "lastused" to getbufinfo(). List buffers sorted by last-used field. (Andi Massimino, closes #4722)

"Test for benchmarking the RE engine

so small.vim
if !has("reltime") | finish | endif
func! Measure(file, pattern, arg)
	for re in range(3)
	    let sstart=reltime()
	    let cmd=printf("../vim -u NONE -N --cmd ':set re=%d'".
		\ " -c 'call search(\"%s\", \"\", \"\", 10000)' -c ':q!' %s", re, escape(a:pattern, '\\'), empty(a:arg) ? '' : a:arg)
	    call system(cmd. ' '. a:file)
	    $put =printf('file: %s, re: %d, time: %s', a:file, re, reltimestr(reltime(sstart)))
	endfor
endfunc