node.js tcp client-server rps v8 vs chakracore

client.js

'use strict';

const net = require('net');
const client = net.connect(54321, process.argv[2] || '127.0.0.1');
let count = 0;
let total = 0;

client.on('data', function(data)
{
  count++;
  total++;
});

setInterval(function()
{
  console.log('%s\t%s', count, total);
  count = 0;
}, 1000);

setTimeout(function()
{
  console.log('%s\t%s', total, Math.round(total / 30));
  process.exit();
}, 30000);

results.txt

node-v8         v5.4.0
node-chakracore v6.0.0-pre1

                  | v8 server | chakracore server
-------------------------------------------------
v8 client         | 92577     | 42956
chakracore client | 74172     | 41486

server.js

'use strict';

const net = require('net');
const server = net.createServer();

server.on('connection', function(socket)
{
  write(socket, 0);
});

server.listen(54321);

function write(socket, count)
{
  socket.write(count.toString());
  
  setImmediate(write, socket, count + 1);
}