buffer_bench.js

for (var i = 0; i < 1e6; i++) {
  b = new Buffer('hello world');
  b[0] = 2;
}

buffer_bench.lua

local lev = require('lev')

for i = 1, 1e6 do
  b = lev.buffer:new('hello world')
  b[1] = 2;
end

buffer_bench_luvit.lua

local Buffer = require('buffer').Buffer

for i = 1, 1e6 do
  b = Buffer:new('hello world')
  b[1] = 2;
end