Even getting/setting lines in one go (as in the lua version) doesn't
improve it for me:
vim9script
def g:VimTest(): void
var totallen = 0
var start = reltime()
new
setline(1, range(100000))
var lines = getline(1, 100000)
for i in range(100000)
lines[i] = ' ' .. lines[i]
totallen += len(lines[i])
endfor
setline(1, lines)
echom totallen
echom reltimestr(reltime(start))
bwipe!
enddef
Result:
:call VimTest()
888890
0.330822
Il giorno martedì 11 gennaio 2022 alle 13:38:08 UTC+1 Bram Moolenaar ha
scritto:
>
> Gianmaria Bajo wrote:
>
> > By the way, in that indent benchmark doesn't use lua as it would be done
> in
> > neovim.
> >
> > For example (neovim 0.6.0)
> >
> > local getlines = vim.api.nvim_buf_get_lines
> > local setlines = vim.api.nvim_buf_set_lines
> > local exec = vim.cmd
> >
> > function LuaTest()
> > local totallen = 0
> > local start = vim.fn.reltime()
> > exec 'new'
> > exec 'call setline(1, range(100000))'
> > local bnr = vim.fn.bufnr()
> > local lines = getlines(bnr, 0, -1, false)
> > for i = 1, 100000 do
> > lines[i] = ' ' .. lines[i]
> > totallen = totallen + lines[i]:len()
> > end
> > setlines(bnr, 0, -1, false, lines)
> > exec ('echom ' .. totallen)
> > exec ('echom ' .. vim.fn.reltimestr(vim.fn.reltime(start)))
> > exec 'bwipe!'
> > end
> >
> > gVim 8.2 (patch 4058)
> >
> > vim9script
> >
> > def g:VimTest(): void
> > var totallen = 0
> > var start = reltime()
> > new
> > call setline(1, range(100000))
> > for i in range(1, 100000)
> > setline(i, ' ' .. getline(i))
> > totallen += len(getline(i))
> > endfor
> > echom totallen
> > echom reltimestr(reltime(start))
> > bwipe!
> > enddef
> >
> > With nvim I get:
> >
> > :lua LuaTest()
> > 888890
> > 0.197217
> >
> > With gVim I get:
> >
> > :call VimTest()
> > 888890
> > 0.308830
>
> The Lua version calls getlines() once, manipulates the array and then
> has one call to setlines(), the Vim version calls getline() and
> setline() for each line separately. That is not a good comparison.
>
> The idea of the benchmark is to manipulate the text in the buffer, using
> one setlines() call is not representing that. Perhaps it should be
> changing only every second line.
>
> --
> Error:015 - Unable to exit Windows. Try the door.
>
> /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
> /// \\\
> \\\ sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ ///
> \\\ help me help AIDS victims -- http://ICCF-Holland.org ///
>
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