State of the art: Server Side JavaScript - @ParisJS #10

Transcript

1. State of the Art Server-Side JavaScript @amorgaut @thibarg 4d.com #10 2011-08-31
2. Notes These slides are part of a 15min version of the talk for ParisJS The full version will be presented at Wakanday aka JS.everywhere(Boston, October, 15)
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. http:/ /en.wikipedia.org/wiki/Comparison_of_server-side_JavaScript_solutions 60+ existing solutions
11. Engines
12. Engines SpiderMonkey TraceMonkey (JIT) JägerMonkey (JIT) IonMonkey (JIT) V8 webkit JavaScriptCore: JSC SquirrelFish Extreme: SFX (JIT) Nitro Trident Chakra Tamarin Carakan Futhark Rhino
13. Engines SpiderMonkey Narwhal CouchDB, MongoDB Spidernode . . . V8 webkit JavaScriptCore: JSC Narwhal Wakanda . . . Rhino Narwhal RingoJS Persevere . . . Narwhal Akshell Node.js . . . C/C++ C/C++ C/C++ SpiderMonkey in Java Trident / Chakra ASP / .NET C/C++
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) http:/ /four.livejournal.com/1019177.html 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
17. RingoJS vs NodeJS (September 2010) http:/ /hns.github.com/2010/09/21/benchmark.html
18. Sunspider 0.9.1 (August 2011) http:/ /expansive-derivation.ossreleasefeed.com/2011/08/javascript-performance-test-results-with-sunspider/ 7 8 6 5 4 3 2 1
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 Vulnerable to synchronous operations Share failure Doesn’t use other cores Hard to debug and maintain Pros Can handle a lot of requests Low memory usage Uses only one core
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 Memory/CPU limits Race conditions, deadlocks, ... (internal, C++) Uses all available cores Pros Vertical scalability (cloud) Thread-safety for concurrent access Uses all available cores
25. Database-driven CouchDB, MongoDB (SpiderMonkey): Document Store Wakanda (JavaScriptCore) Object Store
26. APIs
27. CommonJS Modules Packages Promises System Unit-Testing Binary File JSGI Stream http:/ /wiki.commonjs.org/wiki/CommonJS
28. Node.js async APIs Buffer Events File Net OS Process Streams Timers . . . http:/ /nodejs.org/docs/v0.5.5/api/
29. W3C / HTML5 & other standards Console Blob, Blob URL* DataView* File / FileSystem Modules* Progress Events Structured clones Typed Arrays* Web Sockets Web Storage Web Workers 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 @amorgaut @thibarg @wakandasoft 4d.com wakanday.org @wakandasoft See the full version of this presentation at Wakanday aka JS.everywhere(Boston, October, 15)