recursive-nexttick.js

var start = Date.now()

http = require("http")


console.error("%d scheduling nextTick", Date.now() - start)
process.nextTick(function interval(){
  process.nextTick(interval)
  process.stderr.write(".")
})
console.error("%d nextTick created", Date.now() - start)


console.error("%d creating server", Date.now() - start)
http.createServer(function (req, res) {
  console.error("\n%d SERVER: got request", Date.now() - start)
  res.writeHead(200)
  res.end("ok\n")
}).listen(1337)
console.error("%d server created", Date.now() - start)

console.error("%d scheduling request", Date.now() - start)
setTimeout(function () {
  console.error("\n%d CLIENT: making request", Date.now() - start)
  http.get({ host: "localhost"
           , port: 1337
           , path: "/" }).on("response", function (res) {
    console.error("\n%d CLIENT: got response", Date.now() - start)
    res.pipe(process.stdout)
    res.on("end", function () {
      console.error("\n%d CLIENT: request ended", Date.now() - start)
      process.exit(0)
    })
  })
}, 10)

console.error("%d first tick over", Date.now() - start)

Output:

$ node recursive-nexttick.js 
12 scheduling nextTick
16 nextTick created
16 creating server
17 server created
17 scheduling request
17 first tick over
....................................................................................
....................................................................................
....................................................................................
.......
27 CLIENT: making request
..................
41 SERVER: got request
..
42 CLIENT: got response
ok

42 CLIENT: request ended