Lightening talk presented at ParisJS #10 in 15min Full version should be presented at Wakanday aka JS.everywhere(Boston, October, 15) http://wakanday.org

1. State of the Art
Server-Side JavaScript
#10
@amorgaut 4d.com
@thibarg
2011-08-31

2. Notes
These slides are part of a 15min version of
the talk for ParisJS
a more recent version has been presented at
WebWorkersCamp IV during
Open World Forum
http://www.slideshare.net/alexandre_morgaut/state-of-the-art-server-side-java-script-webworkerscamp-9406069

3. History

4. Birth
1995
LiveScript/JavaScript
1996
Microsoft JScript (IE4)
NetScape Enterprise Server 2
aka LiveWire/iPlanet
1997
ECMAScript 1
“DHTML”
Windows IIS 3

5. Maturity
1998 - DOM, Mozilla Rhino
1999 - ES3, XMLHttpRequest, HTML 4
2000 - ActionScript, Helma Hop
2001 - JSON, Apple JavaScript OSA
2002 - JSLint
2003 - JavaScript Adobe Press
2004 - E4X , “Web 2.0”
2005 - Prototype, “Ajax”
2006 - Firebug, jQuery, “Comet”, “HTML5”
2007 - SitePoint Persevere, Rhino on Rails

6. SSJS: The comeback
2008
Aptana Jaxer
CouchDB
2009
Narwhal & Jack
ServerJS/CommonJS
Node.JS
ECMAScript 5
2010
Helma NG -> RingoJS
Sun Phobos
2011
Wakanda

7. SSJS: The comeback
2008
Aptana Jaxer
CouchDB
2009
Narwhal & Jack
ServerJS/CommonJS
Node.JS
ECMAScript 5
2010
Helma NG -> RingoJS
Sun Phobos
2011
Wakanda

8. SSJS: The comeback
2008
Aptana Jaxer
CouchDB
2009
Narwhal & Jack
ServerJS/CommonJS
Node.JS
ECMAScript 5
2010
Helma NG -> RingoJS
Sun Phobos
2011
Wakanda

9. SSJS: The comeback
2008
Aptana Jaxer
CouchDB
2009
Narwhal & Jack
ServerJS/CommonJS
Node.JS
ECMAScript 5
2010
Helma NG -> RingoJS
Sun Phobos
2011
Wakanda

10. 60+ existing solutions
http://en.wikipedia.org/wiki/Comparison_of_server-side_JavaScript_solutions

11. Engines

12. Engines
SpiderMonkey webkit JavaScriptCore: JSC
TraceMonkey (JIT) SquirrelFish Extreme: SFX (JIT)
JägerMonkey (JIT)
IonMonkey (JIT)
Nitro
Rhino V8
Trident
Chakra Carakan
Tamarin
Futhark

13. Engines
C/ C/
C+ C+
+ +
SpiderMonkey webkit JavaScriptCore: JSC
Narwhal Narwhal
CouchDB, MongoDB Wakanda
Spidernode ...
...
Sp
ide C/
rM C+
o nk +
Rhino V8
ey
in
Ja
va
Narwhal Narwhal
RingoJS Akshell
Persevere Node.js
... C/ ...
C+
Trident / Chakra +
ASP / .NET

14. Benchmarks?

15. Persevere JavaScriptDB
(April 2009)
http://www.sitepen.com/blog/2009/04/20/javascriptdb-perseveres-new-high-performance-storage-engine/

16. Node vs Thin vs Narwhal
(september 2009)
300 concurrent clients
completed requests:
thin 36045
node 35668
narwhal 2921
> summary(node300$ttime)
Min. 1st Qu. Median Mean 3rd Qu. Max.
12.0 66.0 112.0 239.4 157.0 12200.0
> summary(thin300$ttime)
Min. 1st Qu. Median Mean 3rd Qu. Max.
71.0 84.0 87.0 208.7 107.0 23950.0
> summary(narwhal300$ttime)
Min. 1st Qu. Median Mean 3rd Qu. Max.
928 2837 2935 2921 3018 8759
http://four.livejournal.com/1019177.html

17. RingoJS vs NodeJS
(September 2010)
http://hns.github.com/2010/09/21/benchmark.html

18. Sunspider 0.9.1
(August 2011)
7
8
6
5
4
3
2
1
http://expansive-derivation.ossreleasefeed.com/2011/08/javascript-performance-test-results-with-sunspider/

19. Main Concepts

20. Integration-Oriented
Rhino
SpiderMonkey in Java
Interaction with Java (APIs and objects)
Helma, Persevere, Narwhal*, RingoJS, Sun Phobos...
JScript .Net
Chakra (C++)
Interaction with Windows APIs

21. Async. Event-based
One single thread
Cooperative («one at a time») with async. callbacks
nodejs (V8)

22. Async. Event-based
One single thread
Cooperative («one at a time») with async. callbacks
nodejs (V8)
Cons Pros
Vulnerable to synchronous Can handle a lot of
operations requests
Share failure Low memory usage
Doesn’t use other cores Uses only one core
Hard to debug and maintain

23. Thread-based
One thread per context
Preemptive: Parallel code execution
About all others

24. Thread-based
One thread per context
Preemptive: Parallel code execution
About all others
Cons Pros
Memory/CPU limits Vertical scalability (cloud)
Race conditions, deadlocks, ... Thread-safety for concurrent
(internal, C++) access
Uses all available cores Uses all available cores

25. Database-driven
CouchDB, MongoDB (SpiderMonkey):
Document Store
Wakanda (JavaScriptCore)
Object Store

26. APIs

27. CommonJS
Modules Binary
Packages File
Promises JSGI
System Stream
Unit-Testing
http://wiki.commonjs.org/wiki/CommonJS

28. Node.js async APIs
Buffer Streams
Events Timers
File ...
Net
OS
Process
http://nodejs.org/docs/v0.5.5/api/

29. W3C / HTML5
& other standards
Console Structured clones
Blob, Blob URL* Typed Arrays*
DataView* Web Sockets
File / FileSystem Web Storage
Modules* Web Workers
Progress Events XHR 2

30. Packages & Modules
github
lot of commonjs modules in several
repositories (Persevere, Narwhal,
RingoJS, ...)
NPM: Node Package Manager
3600+ packages
CPM: CommonJS Package Manager (new)
http://wiki.commonjs.org/wiki/CommonJS

31. State of the Art
Server-Side JavaScript
The End
See us at Wakanday aka
JS.everywhere(Boston, October, 15)
@amorgaut 4d.com
@thibarg wakanday.org
@wakandasoft @wakanday