This document compares Java and Node.js, highlighting key differences. Node.js is single-threaded and non-blocking, using callbacks. This allows Node.js to handle more requests with fewer resources than Java, which is multi-threaded and blocking. The document recommends considering Node.js due to its benefits of higher performance and lower memory usage compared to Java.

1. From Java To Node.js
Cliffano Subagio (@cliffano)

2. Bleeding Edge

3. Why use Node.js?

4. Multi Threaded Single Threaded
Blocking Non-blocking
Java JavaScript

5. Somebody gonna get a hurt

6. Memory usage
300Mb
270Mb
240Mb
210Mb
Single Threaded Multi Threaded
180Mb
150Mb
120Mb
90Mb
60Mb
30Mb
0Mb
1 request 10 requests

7. Blocking Non-blocking
cafes = db.getCafes(); callback = func (cafes) {
print(cafes); print(cafes);
}
db.getCafes(callback);

8. Seriously Fast!

9. Java JavaScript

10. I’m feeling productive!

11. Best Practice

12. So
It works. It has obvious benefits.
Definitely worth considering.

13. Questions?

14. Credits
Flickr Creative Commons
http://www.flickr.com/photos/tomsaint/2704534525/ by Rennett Stowe
http://www.flickr.com/photos/jcorduroy/4314537558/ by Jay Malone
http://www.flickr.com/photos/jamescridland/1305153543/ by James Cridland
http://www.flickr.com/photos/ashleyyyray/3630230385/ by Ashley Maceli
http://www.flickr.com/photos/viernest/3380560365/ by Ernest
http://www.flickr.com/photos/rogerimp/3181052163/ by Roger Braunstein
http://www.flickr.com/photos/sookie/2491485992/ by Sookie
http://www.flickr.com/photos/richardgunn/1795691766/ by Richard