State of the art: Server-Side JavaScript - WebWorkersCamp IV - Open World Forum 2011

STATE OF THE ART SERVER-SIDE JAVASCRIPT@amorgaut 4d.com 2011-09-24

HISTORY

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

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, JScript .NET• 2004 - E4X , “Web 2.0”• 2005 - Prototype, “Ajax”• 2006 - Firebug, jQuery, “Comet”, APE, “HTML5”• 2007 - SitePoint Persevere, Rhino on Rails

SSJS: THE COMEBACK• 2008 Aptana Jaxer CouchDB Acid Test 3• 2009 Narwhal & Jack GPSEE ServerJS -> CommonJS Node.js ECMAScript 5• 2010 Helma NG -> RingoJS Sun Phobos• 2011 Wakanda

60+ EXISTING SOLUTIONShttp://en.wikipedia.org/wiki/Comparison_of_server-side_JavaScript_solutions

ENGINES

C C+ +SpiderMonkey webkit JavaScriptCore: JSC TraceMonkey (JIT) SquirrelFish Extreme: SFX (JIT) JägerMonkey (JIT) IonMonkey (JIT) Nitro C+ Jav + a Rhino V8 C+ + Trident Chakra C+ + C+ + Carakan Tamarin Futhark

CLIENT-SIDESpiderMonkey JavaScriptCore Rhino V8 Tamarin Trident / Chakra Carakan / Futhark

SERVER-SIDESpiderMonkey JavaScriptCore Narwhal Narwhal CouchDB, MongoDB Wakanda APE, GPSEE, SpiderNode ... V8 Narwhal Akshell Node.js Rhino Trident / Chakra Narwhal IronJS Helma / RingoJS, AppJet Node.NET Persevere, Phobos, RhiNodeII ...

BENCHMARKS and what they worth....

BROWSERS WAR II (MAY 2009)http://www.maximumpc.com/article/features/browser_brouhaha_your_maximum_guide_browsers_today_and_tomorrow?page=0,6

PERSEVERE & JAVASCRIPTDB (APRIL 2009) http://www.sitepen.com/blog/2009/04/20/javascriptdb-perseveres-new-high-performance-storage-engine/

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

RINGOJS VS NODEJS (SEPTEMBER 2010) http://hns.github.com/2010/09/21/benchmark.html

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

MAIN CONCEPTS

INTEGRATION-ORIENTED• Rhino - Interaction with Java (APIs and objects) - Helma, Persevere, Narwhal, RingoJS, Sun Phobos...• JScript .Net - Interaction with MS .NET (APIs and objects) - IronJS, Node.NET

COMMON JAVASCRIPT• Ubiquity not only for ECMAScript• Server missing APIs• Web Applications 1.0• Asynchronous & Synchronous• Working Groups: - CommonJS - WHATWG - W3C - ECMA TC39

ASYNC. EVENT-BASED• Browser Event-Loop on the Server• An Event Loop in one single thread• Cooperative («one at a time») with async. callbacks• Node.js (V8), SpiderNode, RhiNodeII, Node.NET

SINGLE vs MULTI THREADING One context per thread

SINGLE vs MULTI THREADING One context per threadSINGLE MULTI• Low memory usage • Vertical scalability (multi-core)• Potentially handle lot of requests • Thread-safety for concurrent access• Cooperative • Preemptive: Parallel code execution• Shared context • Allow Synchronous APIs• Use mostly one core • Uses easily all available cores

DATABASE-DRIVEN• Document Store - CouchDB, MongoDB• Object Store - Wakanda• Push Store - APE

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

NODE ASYNC APIS• Buffer • Process• Events • Streams• File • Timers• Net • ...• OS http://nodejs.org/docs/v0.5.5/api/

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

PACKAGES & MODULES• github: CommonJS modules in forks (Persevere, Narwhal, RingoJS, ...)• NPM: Node Package Manager (3600+ packages)• CPM: CommonJS Package Manager (new)• PINF: Universal module loader http://wiki.commonjs.org/wiki/CommonJS

STATE OF THE ART SERVER-SIDE JAVASCRIPT The End See us at Wakanday aka JS.everywhere(Boston, October, 15)@amorgaut 4d.com@thibarg Wakanda.org@wakanday Wakanday.org

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State of the art: Server-Side JavaScript - WebWorkersCamp IV - Open World Forum 2011

by Alexandre Morgaut

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State of the art: Server-Side JavaScript - WebWorkersCamp IV - Open World Forum 2011 Presentation Transcript