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nsyee id:nsyee

V8ã«é–¢ã™ã‚‹nsyeeã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (89)

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V8ã®æœ€é©åŒ–ã¨IRHydraã§ã®å¯è¦–åŒ–ã¨ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã«ã¤ã„ã¦ã®ãƒ¡ãƒ¢
V8 ã®æœ€é©åŒ–ã«ã¤ã„ã¦ è‰²ã€…(ä¸»ã«Vyacheslav Egorovã•ã‚“ã®è¨˜äº‹ã‚„ã‚¹ãƒ©ã‚¤ãƒ‰)èªã‚“ã§ãŸã®ã§ãã‚Œã®ãƒ¡ãƒ¢ã€‚ ã“ã®æ–‡ç« ã¯2014å¹´9æœˆ13æ—¥ã«æ›¸ã‹ã‚Œã¦æœ€é©åŒ–ã•ã‚Œã¦ã„ãªã„ãŸã‚ã€ã“ã®æ–‡ç« ã‚’å…ƒã«æœ€é©åŒ–ã‚’ã™ã‚‹ã¨å¤±æ•—ã™ã‚‹ã¨æ€ã„ã¾ã™ã€‚ å‚è€ƒã¾ã¨ã‚ V8ã«é–¢ã™ã‚‹ãƒªã‚½ãƒ¼ã‚¹ã¾ã¨ã‚ V8 Resources - Vyacheslav Egorovã•ã‚“ã«ã‚ˆã‚‹ thlorenz/v8-perf - Thorsten Lorenzã•ã‚“ã«ã‚ˆã‚‹ Understanding V8 and JIT compilation basics - Google ã‚¹ãƒ©ã‚¤ãƒ‰ - æ¦‚è¦åˆ†ã‹ã‚Šã‚„ã™ã„ Hidden Class V8ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸæ™‚ã‹ã‚‰ç‰¹å¾´ã¨ã—ã¦ã‚ã’ã‚‰ã‚Œã¦ã„ã‚‹æœ€é©åŒ– V8: an open source JavaScript engine - YouTube V8 ç¥ã‚Š - Backnumbers: Steps to
nsyee 2014/09/14
V8

javascript

tuning

debug
ãƒªãƒ³ã‚¯
runtime.js â€“ JavaScript library operating system for the cloud
Overview runtime.js is an open-source library operating system (unikernel) for the cloud that runs JavaScript, can be bundled up with an application and deployed as a lightweight and immutable VM image. It's built on V8 JavaScript engine and uses event-driven and non-blocking I/O model inspired by Node.js. At the moment KVM is the only supported hypervisor. It tries to be compatible with npm modul
nsyee 2014/06/29
V8

javascript

kernel
ãƒªãƒ³ã‚¯
How Node.JS applications will benefit from replacing V8 in JXcore | Oguz Bastemur
nsyee 2014/05/05
Node.js

LLVM

V8

JXcore
ãƒªãƒ³ã‚¯
V8ã§ãƒãƒƒã‚¯ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã®æŒ‘æˆ¦
Spring Bootã«ã‚ˆã‚‹APIãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰æ§‹ç¯‰å®Ÿè·µã‚¬ã‚¤ãƒ‰ ç¬¬2ç‰ˆ ä½•åƒäººã‚‚ã®é–‹ç™ºè€…ãŒã€InfoQã®ãƒŸãƒ‹ãƒ–ãƒƒã‚¯ã€ŒPractical Guide to Building an API Back End with Spring Bootã€ã‹ã‚‰ã€Spring Bootã‚’ä½¿ã£ãŸREST APIæ§‹ç¯‰ã®åŸºç¤Žã‚’å¦ã‚“ã ã€‚ã“ã®æœ¬ã§ã¯ã€å‡ºç‰ˆæ™‚ã«æ–°ã—ããƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã‚ã‚‹ Spring Boot 2 ã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã€‚ã—ã‹ã—ã€Spring Boot3ãŒæœ€è¿‘ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã€é‡è¦ãªå¤‰...
nsyee 2014/03/06
javascript

compiler

parallel

V8
ãƒªãƒ³ã‚¯
éš ã‚Œã¦ã„ãŸNode.jsã®4ãƒã‚¤ãƒˆãƒ¡ãƒ¢ãƒªãƒªãƒ¼ã‚¯ã€Walmartå•é¡Œã®è§£æ±º - ã¼ã¡ã¼ã¡æ—¥è¨˜
ã“ã®è¨˜äº‹ã¯ã€ Node.js Advent Calendar 2013 - Adventar ã®12æ—¥ç›®ã§ã™ã€‚ 1. ã‚ã‚ŠãŒã¨ã† Ben Nodeã®æƒ…å ±ã«æ™®æ®µã‚¢ãƒ³ãƒ†ãƒŠã‚’å¼µã£ã¦ã„ã‚‹äººã¯æ—¢ã«ã”å˜ã˜ã§ã—ã‚‡ã†ãŒã€Nodeã‚³ã‚¢é–‹ç™ºã®ä¸å¿ƒçš„ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ Ben Noordhuis ãŒNodeã®ã‚³ã‚¢ãƒãƒ¼ãƒ ã‹ã‚‰é›¢ã‚Œã¾ã—ãŸã€‚Node.jsã®å…¬å¼ãƒ–ãƒã‚°ã«ã€ŒBen Noordhuis's Departureã€ã¨ã—ã¦ã‚¢ãƒŠã‚¦ãƒ³ã‚¹ã•ã‚Œã¦ã„ã¾ã™ã€‚ ãªãœå½¼ãŒNodeã®é–‹ç™ºã‚’æ¢ã‚ãªã‘ã‚Œã°ãªã‚‰ãªã‹ã£ãŸã®ã‹ãã®çµŒç·¯ã‚’ã“ã“ã§è¿°ã¹ã‚‹ã“ã¨ã¯æŽ§ãˆã¾ã™ãŒã€å½¼ã®ã“ã‚Œã¾ã§ã®è²¢çŒ®ãªã—ã§ã¯ä»Šã®Nodeã¯å˜åœ¨ã—å¾—ãªã‹ã£ãŸã€ã¨è¨€ãˆã‚‹ã»ã©å½¼ã¯é‡è¦ãªå˜åœ¨ã§ã—ãŸã€‚Benã¯ã€Nodeã‚„libuvã®ã‚³ãƒ¼ãƒ‰ã®é–‹ç™ºã ã‘ã§ãªãã€github ã® issue ã®å›žç”ã‚„PRã®ãƒ¬ãƒ“ãƒ¥ãƒ¼ã€ MLã®è³ªå•ã®è¿”ç”ãªã©Nodeã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã«ã‚‚ç²¾åŠ›çš„ã«å¯¾å¿œã—ã€åŽ»å¹´æ¥æ—¥ã—ãŸ isaac
nsyee 2013/12/12
Node.js

V8

debug

äº‹ä¾‹
ãƒªãƒ³ã‚¯
æµŽå—è“–ä¸ç”µåç§‘æŠ€æœ‰é™å…¬å¸
nsyee 2013/06/13
javascript

Redis

V8
ãƒªãƒ³ã‚¯
Operaã€ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã‚¨ãƒ³ã‚¸ãƒ³ã«WebkitæŽ¡ç”¨ã‚’ãƒ–ãƒã‚°ã§ç™ºè¡¨ã€‚ã¾ãšã¯ã‚¹ãƒžãƒ¼ãƒˆãƒ•ã‚©ãƒ³å‘ã‘ã€ãã®å¾Œãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ç‰ˆã‚‚
Operaã¯ä»Šå¾ŒåŒç¤¾ãŒé–‹ç™ºã™ã‚‹Webãƒ–ãƒ©ã‚¦ã‚¶ã®ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ã‚¨ãƒ³ã‚¸ãƒ³ã«WebKitã‚’æŽ¡ç”¨ã™ã‚‹ã“ã¨ã‚’ãƒ–ãƒã‚°ã§ç™ºè¡¨ã—ã¾ã—ãŸã€‚æœ€åˆã«Webkitãƒ™ãƒ¼ã‚¹ã«ãªã‚‹ã®ã¯ã‚¹ãƒžãƒ¼ãƒˆãƒ•ã‚©ãƒ³å‘ã‘ã®è£½å“ã§ã€ãã®å¾Œãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—å‘ã‘ã‚„ãã®ä»–ã®è£½å“ã«ã‚‚é©ç”¨ã•ã‚Œã‚‹ã¨ã®ã“ã¨ã€‚ ãƒ–ãƒã‚°ã€Œ300 million users and move to WebKitã€ã®å†’é ã§åŒç¤¾ã®Bruce Lawsonã¯æ¬¡ã®ã‚ˆã†ã«æ›¸ã„ã¦ã„ã¾ã™ã€‚ On the same day as announcing that Opera has 300 million users, we're also announcing that for all new products Opera will use WebKit as its rendering engine and V8 as its JavaScript engine. 3å„„ãƒ¦ãƒ¼ã‚¶ãƒ¼ã«åˆ°é”ã—ãŸç™ºè¡¨ã¨
nsyee 2013/02/13
Opera

webkit

V8
ãƒªãƒ³ã‚¯
GitHub - iriscouch/couchjs: Drop-in replacement JavaScript engine for Apache CouchDB
nsyee 2013/01/23
CouchDB

Node.js

V8
ãƒªãƒ³ã‚¯
GoogleãŒç¤ºã™JavaScriptã‚’350å€é«˜é€ŸåŒ–ã™ã‚‹ç§˜è¨£ - ã¼ã¡ã¼ã¡æ—¥è¨˜
1. ã¯ã˜ã‚ã«ã€ ä»Šå¹´ã‚‚ Google I/O ãŒé–‹å‚¬ã•ã‚Œã¾ã—ãŸã€‚ä¸€åº¦ã‚‚ç¾åœ°ã«è¡Œã£ã¦å‚åŠ ã—ãŸã“ã¨ã¯ãªã„ã®ã§ã™ãŒã€æ¯Žå¹´ã‚»ãƒƒã‚·ãƒ§ãƒ³ã®å†…å®¹ã¯æŠ€è¡“çš„ã«é«˜åº¦ãªã‚‚ã®ã°ã‹ã‚Šã§ã„ã¤ã‚‚æ³¨ç›®ã—ã¦ã„ã¾ã™ã€‚ä»Šå¹´ã®ä¸€ã¤èˆˆå‘³æ·±ã„ã‚»ãƒƒã‚·ãƒ§ãƒ³ã§ã€ ã€ŒGoogle I/O 2012 - Breaking the JavaScript Speed Limit with V8 (Daniel Clifford)ã€ ã‚¹ãƒ©ã‚¤ãƒ‰ ,ãƒ“ãƒ‡ã‚ª ã¨ã„ã†ã®ãŒã‚ã‚Šã¾ã—ãŸã€‚ï¼ˆãƒ“ãƒ‡ã‚ªãƒ»è³‡æ–™ã‚’ã™ãå…¬é–‹ã—ã¦ã‚‚ã‚‰ãˆã‚‹ã®ã¯ãƒ›ãƒ³ãƒˆã‚ã‚ŠãŒãŸã„ã§ã™ã€‚ï¼‰ ã”å˜ã˜ã®é€šã‚Š V8 ã¯ Chrome ã«æè¼‰ã•ã‚Œã¦ã„ã‚‹ã°ã‹ã£é€Ÿã„ JavaScript ã‚¨ãƒ³ã‚¸ãƒ³ã§ Node.js ã§ã‚‚æŽ¡ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ã“ã®ã‚»ãƒƒã‚·ãƒ§ãƒ³ã¯ã€ V8 ã®å†…éƒ¨å®Ÿè£…ã®è§£èª¬ã‚’å…ƒã«ã©ã† JavaScript ã®å®Ÿè¡Œé€Ÿåº¦ãŒãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãŒã§ãã‚‹ã‹ã¨ã„ã†å†…å®¹ã§ã€ã‚‚ã†ã“ã‚Œã¯å¿…è¦‹ã§è¦‹é€ƒã›ãªã„ã‚‚ã®ã§ã™ã€‚
nsyee 2012/07/13
javascript

tuning

V8
ãƒªãƒ³ã‚¯
Google IO 2012
Follow the slides at http://goo.gl/U2vuT Performance optimization... what's that? Today, we're going to talk about Raw JavaScript Execution Performance with now ... Made in Germany Who cares about performance? You should. JavaScript Performance Matters
nsyee 2012/07/12
google

javascript

V8

tuning
ãƒªãƒ³ã‚¯
mraleph - Explaining JavaScript VMs in JavaScript
I have a thing for virtual machines that are implemented in the language (or a subset of the language) they are built to execute. If I were in the academia or just had a little bit more free time I wouldÂ definitelyÂ start working on a JavaScript VM written in JavaScript. That would not be the first project even for JavaScript because people fromÂ UniversitÃ© de MontrÃ©al kinda got there first with Tac
nsyee 2012/07/01
javascript

V8
ãƒªãƒ³ã‚¯
node-tick-processorã§nodejsã®ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚’æ•´å½¢ã™ã‚‹ - Islands in the byte stream (legacy)
ã‚‚ã¨ã‚‚ã¨V8ã«ã¯ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«æ©Ÿèƒ½ãŒçµ„ã¿è¾¼ã¾ã‚Œã¦ã„ã¦ã€V8ã®ãƒªãƒã‚¸ãƒˆãƒªã«ã¯ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ãƒ¼ã‚¿ã‚’æ•´å½¢ã—ã¦è¡¨ç¤ºã™ã‚‹ãŸã‚ã® *-tick-processor ã¨ã„ã†ã‚¹ã‚¯ãƒªãƒ—ãƒˆãŒå…¥ã£ã¦ã„ã‚‹ã€‚ https://github.com/v8/v8/tree/master/tools linux-tick-processor mac-tick-processor freebsd-tick-processor windows-tick-processor.bat ãã—ã¦ nodejs ã¯ --prof ã‚ªãƒ—ã‚·ãƒ§ãƒ³ã§V8ã®ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚’æœ‰åŠ¹ã«ã—ã¦ã€ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ãƒ‡ãƒ¼ã‚¿ã‚’å‡ºåŠ›ã§ãã‚‹ã€‚ãŸã ã€æ•´å½¢ã«ã¯V8ã® *-tick-processor ãŒå¿…è¦ã§ã€ã“ã® *-tick-processor ã‚’ä½¿ã†ã«ã¯V8ã‚’ãƒ“ãƒ«ãƒ‰ã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ã€‚ *-tick-processor ã¯V8ã‚’ãƒ“ãƒ«ãƒ‰ã—ãŸã¨ãã«ã§ãã‚‹d8ã¨ã„ã†JSã®ã‚¤ãƒ³ã‚¿
nsyee 2012/06/29
Node.js

V8

profiling
ãƒªãƒ³ã‚¯
Clojurescript Benchmark Times
nsyee 2012/06/02
benchmark

javascript

clojure

spidermonkey

JavaScriptCore

V8

JVM

clojurescript
ãƒªãƒ³ã‚¯
V8ã®JITã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã€Crankshaftã«ã¤ã„ã¦ â€” V8 Crankshaft Overview 1.3 documentation
V8ã®JITã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã€Crankshaftã«ã¤ã„ã¦Â¶ ã“ã‚“ã°ã‚“ã¯ã€ã¯ã˜ã‚ã¾ã—ã¦ã€‚nothingcosmosã¨ç”³ã—ã¾ã™ã€‚ JavaScript Advent Calendar 2011 (ã‚ªãƒ¬æ¨™æº–ã‚³ãƒ¼ã‚¹) 22æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ JavaScriptåˆå¿ƒè€…ã§ã™ã®ã§ã€ãŠæ‰‹æŸ”ã‚‰ã‹ã«ãŠé¡˜ã„ã—ã¾ã™ã€‚ Crankshaftã¨ã¯Â¶ Crankshaftã¨ã„ã†ã®ã¯ã€JavaScriptã‚¨ãƒ³ã‚¸ãƒ³ã§ã‚ã‚‹V8ã« ã“ã“1å¹´ã§æ–°è¦è¿½åŠ ã•ã‚ŒãŸã€JITã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã«ãªã‚Šã¾ã™ã€‚ V8ã¯ã“ã®æ–°ã—ã„JITã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã®è¿½åŠ ã«ã‚ˆã‚Šã€ V8ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã§50%æ€§èƒ½å‘ä¸Šã—ãŸã‚ˆã†ã§ã™ã€‚ ç§ã¯æ¬¡ã«èªã‚€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã¯mozillaç³»ã®xxx monkeyã«ã—ã‚ˆã†ã¨æ€ã£ã¦ã„ãŸã®ã§ã™ãŒã€ V8 Crankshaftã®50%å‘ä¸Šã¸éžå¸¸ã«èˆˆå‘³ã‚’æŒã¡ã€ æœ€è¿‘ã«ãªã£ã¦ã•ã‚ã‚Šå§‹ã‚ã¾ã—ãŸã€‚ Crankshaft has four main component
nsyee 2012/05/05
V8

javascript

compiler
ãƒªãƒ³ã‚¯
V8ã®JITã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã€Crankshaftã«é–¢ã—ã¦ - LLVMã¨ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã¨VM
vmã‚„javascript-engineã®æ¦‚è¦ã‚„æ´å²ã«é–¢ã—ã¦èª¬æ˜Žã—ã¦ã„ã‚‹ã‚¹ãƒ©ã‚¤ãƒ‰ã§ã™ã€‚ ãã®ä¸ã§ã€old javascript engineã¯stack-baseã‚’æŽ¡ç”¨ã—ã€ modern javascript engineã¯ã€register-baseã®ä¸é–“è¡¨ç¾ã‚’æŽ¡ç”¨ã—ã¦ã„ã‚‹ã¨ã„ã†ä¸‹ã‚ŠãŒã‚ã‚Šã¾ã™ã€‚ javascriptã«é™ã‚‰ãªã„ã§ã™ãŒã€ç¢ºã‹ã«ãã†ã„ã†æ„Ÿã˜ã¯ã‚ã‚Šã¾ã™ã€‚ JVMã‚„CILãŒstack-baseãªã®ã¯æ´å²çš„ãªçµŒç·¯ãªã®ã ã¨æ€ã„ã¾ã™ã€‚ stack-baseã ã¨ä½•ãŒå¬‰ã—ã„ã®ã‹ã¨ã„ã†ã¨ã€parseã™ã‚‹éš›ã‚„ã€ä»–ã«translateã™ã‚‹éš›ã«ã€éžå¸¸ã«æ¥½ã§ã™ã€‚ push-pop-push-popã ã‘ã§ã‚ªãƒšãƒ©ãƒ³ãƒ‰ã‚„å®šç¾©å€¤ã®é€£éŽ–ã‚’è¡¨ç¾ã§ãã‚‹ã®ã§ã€ éžå¸¸ã«ã‚·ãƒ³ãƒ—ãƒ«ãªã‚³ãƒ¼ãƒ‰ã«ãªã‚Šã¾ã™ã€‚ é€†ã«register-baseã ã¨ä½•ãŒã†ã‚Œã—ã„ã®ã‹ã¨è¨€ã†ã¨ã€ãŸã¶ã‚“SSAå½¢å¼ãŒé–¢é€£ã—ã¦ã„ã‚‹ã‚ˆã†ã«æ€ã„ã¾ã™ã€‚ regist
nsyee 2012/05/05
javascript

compiler

V8
ãƒªãƒ³ã‚¯
GitHub - tj/callsite: node.js access to v8's "raw" CallSites -- useful for custom traces, c-style assertions, getting the line number in execution etc
nsyee 2012/03/28
Node.js

debug

V8
ãƒªãƒ³ã‚¯
JSã«ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã•ã‚ŒãŸDartãŒPerlã‚ˆã‚Šé€Ÿã„ä»¶ - Islands in the byte stream (legacy)
Dartã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ãŒç°¡å˜ã«ãªã£ã¦ã„ãŸã®ã§è©¦ã—ã¦ã¿ãŸã¨ã“ã‚ã€Perlã‚ˆã‚Šã‚‚é«˜é€Ÿã ã£ãŸã€‚ ãªã«ã“ã‚Œæ‚”ã—ã„ã€‚ Dart: void main() { final t = new Stopwatch(); t.start(); final a = new List<int>(); for(var i = 0; i < 1000000; ++i) { a.add(i); } for(var i = 0; i < a.length; ++i) { ++a[i]; } var sum = 0; for(var i = 0; i < a.length; ++i) { sum += a[i]; } print(sum); print(t.elapsedMilliseconds / 1000); } Perl: use 5.12.0; use Time::HiRes qw(gettimeofday tv_
nsyee 2012/02/26
Dart

V8

javascript

Perl

Node.js

benchmark
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Node.jsã®ãƒ“ãƒ«ãƒ‰ãŒé…ã„(ä¸»ã«V8)ã¨ãŠå›°ã‚Šã®ã›ã£ã‹ã¡ãªè²´æ–¹ã¸é€ã‚‹ãƒ“ãƒ«ãƒ‰ç’°å¢ƒæ§‹ç¯‰ - Write and Run
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nsyee 2011/12/13
Node.js

V8
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GitHub - plv8/plv8: V8 Engine Javascript Procedural Language add-on for PostgreSQL
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nsyee 2011/11/09
plv8

V8

javascript

postgresql
ãƒªãƒ³ã‚¯
http://pgeu-plv8.herokuapp.com/
nsyee 2011/11/09
postgresql

heroku

V8

plv8
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