nodejs response speed and nginx

Question

Just started testing nodejs, and wanted to get some help in understanding following behavior:

Example #1:

var http = require(\'http\');
http.create         


        

Answer 1

Peeking into http.js reveals that case #1 has special handling in nodejs itself, some kind of a shortcut optimization I guess.

var hot = this._headerSent === false &&
            typeof(data) === 'string' &&
            data.length > 0 &&
            this.output.length === 0 &&
            this.connection &&
            this.connection.writable &&
            this.connection._httpMessage === this;

      if (hot) {
        // Hot path. They're doing
        //   res.writeHead();
        //   res.end(blah);
        // HACKY.

        if (this.chunkedEncoding) {
          var l = Buffer.byteLength(data, encoding).toString(16);
          ret = this.connection.write(this._header + l + CRLF +
                                      data + '\r\n0\r\n' +
                                      this._trailer + '\r\n', encoding);
        } else {
          ret = this.connection.write(this._header + data, encoding);
        }
        this._headerSent = true;

      } else if (data) {
        // Normal body write.
        ret = this.write(data, encoding);
      }

      if (!hot) {
        if (this.chunkedEncoding) {
          ret = this._send('0\r\n' + this._trailer + '\r\n'); // Last chunk.
        } else {
          // Force a flush, HACK.
          ret = this._send('');
        }
      }

      this.finished = true;