ab results

APACHE:
$ ab -k -c 50 -n 20000 http://127.0.0.1/statread.js 2>&1 | grep "Requests per second"
Requests per second: 12370.69 [#/sec] (mean)
 
NGINX:
$ ab -k -c 50 -n 20000 http://127.0.0.1/statread.js 2>&1 | grep "Requests per second"
Requests per second: 20262.73 [#/sec] (mean)
 
NODE:
$ ab -k -c 50 -n 20000 http://127.0.0.1:8000/statread.js 2>&1 | grep "Requests per second"
Requests per second: 13687.51 [#/sec] (mean)

statread.js

var sys = require("sys"),
  http = require("http"),
  url = require("url"),
  path = require("path"),
  fs = require("fs"),
  cache = {},
  CACHE_TIMEOUT = 200,
  DOCROOT = process.cwd(),
  PORT = 8000;

function fail (response, code, msg) {
  if (!code) code = 404;
  if (!msg) msg = http.STATUS_CODES[code] || "unknown error";
  msg = code + " " + msg
  response.writeHead(code,
    {"content-type": "text/plain", "content-length":msg.length});
	response.write(msg);
	response.close();
}
function ok (response, data) {
  response.writeHead(200, {"content-length":data.length});
  response.write(data);
  response.close();
}

http.createServer(function(request, response) {
  var uri = url.parse(request.url).pathname;
  var filename = path.join(DOCROOT, path.normalize(uri));

  if (filename in cache) {
    var cached = cache[filename];
    if (cached.time < Date.now() + CACHE_TIMEOUT) {
      if (cached.data === false) return fail(response);
      else return ok(response, cached.data);
    }
  }
  fs.stat(filename, function (er, newstat) {
    if (er) {
      cache[filename] = {time:Date.now(), data:false};
      return fail(response);
    }
    if (cached && cached.time >= newstat.mtime.getTime()) {
      return ok(response, cached.data);
    }
    fs.readFile(filename, function (er, data) {
      if (er) return fail(response, 500, er.stack);
      cache[filename] = { time:newstat.mtime.getTime(), data:data };
      return ok(response, data);
    });
  });
}).listen(PORT);

sys.puts("Server running at http://localhost:"+PORT+"/");