[B! v8] TAKESAKOã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

TAKESAKO id:TAKESAKO

v8ã«é–¢ã™ã‚‹TAKESAKOã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (28)

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http://www12.ocn.ne.jp/~yamazaki/v8.txt
V8 JavaScript Engineã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã®ã‚½ãƒ¼ã‚¹ã®ç°¡å˜ãªãƒ¡ãƒ¢ ç‰¹å¾´ ãƒ»ãƒã‚¤ãƒˆã‚³ãƒ¼ãƒ‰ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ—ãƒªã‚¿ã¯ç„¡ãï¼Œã‚³ãƒ³ãƒ‘ã‚¤ãƒ«å®Ÿè¡Œã—ã‹ãªã„ï¼Ž JITã§ã¯ãªãï¼Œå®Œå…¨ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«æ–¹å¼ï¼Ž ä»Šã¯IA32ã¨ARMã®2ç¨®é¡žã®ã¿ã‚µãƒãƒ¼ãƒˆï¼Žä»¥ä¸‹ã¯ï¼Œia32ã®ã¿ãƒã‚§ãƒƒã‚¯ã™ã‚‹ï¼Ž ãŸã¶ã‚“ï¼Œã‚¹ã‚¿ãƒƒã‚¯ãƒ¢ãƒ‡ãƒ«ãªã®ã§ï¼Œä»–ã®CPUã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã‚’ä½œã‚‹ã®ã¯ï¼Œãã‚Œã»ã©å¤§å¤‰ã§ã¯ãªã„ï¼Ž ãƒ»evalãŒã‚ã‚‹ï¼Ž ãƒ»ä¸–ä»£åˆ¥GCãŒå…¥ã£ã¦ã„ã‚‹ã‚‰ã—ã„ï¼Žspaces.hã®36è¡Œç›®ã‹ã‚‰è©³ç´°ãªè¨˜è¿°ï¼Žã‚³ãƒ¡ãƒ³ãƒˆ ã«ã‚ˆãå‡ºã¦ãã‚‹ã€Œrem embered set bitsã€ã¯ï¼Œoldé ˜åŸŸã‚’ç®¡ç†ã™ã‚‹ãƒ“ãƒƒãƒˆãƒ†ãƒ¼ ãƒ–ãƒ«(?)ã®ã“ã¨ã‚‰ã—ã„ï¼Žãƒã‚¤ãƒ³ã‚¿ã«GC bitã‚’åŸ‹ã‚è¾¼ã‚“ã ã‚Šã¯ã—ã¦ã„ãªã„ï¼ŽãŸ ã¶ã‚“ï¼ŽãŸã ï¼Œä¸‹ã®Smiã®ã¨ã“ã‚ã«ã‚ã‚‹ã‚ˆã†ã«ï¼Œä¸‹ä½2ãƒ“ãƒƒãƒˆã«ã¯æ„å‘³ãŒã‚ã‚‹ï¼Ž ãƒ»Inline cache ã‚’ã‚„ã£ã¦ã„ã‚‹ï¼ŽãŸã¶ã‚“ï¼Œè¦‹ã¤ã‹ã£ãŸãƒ¡ã‚½ãƒƒãƒ‰ã®ã‚ãƒ£ãƒƒã‚·ãƒ³ã‚°ï¼Ž ãƒ»ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«è‡ªèº«ã¯ï¼Œ
TAKESAKO 2009/07/19
v8
ãƒªãƒ³ã‚¯
Google V8: ã‚ã‚„ã—ã„ãƒ•ãƒ©ã‚°é” - ä½é‡Žãƒ‡ã‚¸ã‚¿ãƒ«ç ”ç©¶æ‰€
V8ã‚’ãƒ“ãƒ«ãƒ‰ã—ãŸã‚‰ä½œã‚‰ã‚Œã‚‹d8.exeã®ã‚³ãƒ¼ãƒ‰ã«ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆã‚’ç½®ã„ã¦ã€ã‚¹ãƒ†ãƒƒãƒ—å®Ÿè¡Œã—ã¦ã„ãŸã‚‰ã€é¢ç™½ãã†ãªãƒ•ã‚¡ã‚¤ãƒ«ã‚’ç™ºè¦‹ã€‚v8\src\flag-definitions.hã«ä½•ã‹è‰²ã€…ãƒ•ãƒ©ã‚°ãŒå®šç¾©ã•ã‚Œã¦ã„ã‚‹ã€‚ // codegen-ia32.cc / codegen-arm.cc DEFINE_bool(trace_codegen, false, "print name of functions for which code is generated") DEFINE_bool(print_source, false, "pretty print source code") DEFINE_bool(print_builtin_source, false, "pretty print source code for builtins") DEFINE_bool(print_ast, fals
TAKESAKO 2009/07/19
javascript

v8
ãƒªãƒ³ã‚¯
https://bugs.chromium.org/p/v8/issues/detail?id=85&colspec=ID%20Type%20Status%20Priority%20Owner%20Summary
TAKESAKO 2008/09/24
v8ã®ãƒã‚°ã€æœ€å¾Œã®æ”¹è¡Œãªã„ã¨ã‚¨ãƒ©ã‚‹ã®ã‹ã€‚ã€‚ã€‚

javascript

v8
ãƒªãƒ³ã‚¯
Chromeã®evalã¯é…ã„? (è¿½è¨˜) - Ogawa::Memoranda
TAKESAKO 2008/09/11
javascript

v8
ãƒªãƒ³ã‚¯
Chromeã®evalã¯é…ã„? - Ogawa::Memoranda
TAKESAKO 2008/09/11
javascript

v8
ãƒªãƒ³ã‚¯
google Chromeã§SHA-1ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ (mitsunari@cybozu labs)
1å¹´ã»ã©å‰ã«ä½œã£ãŸsha1.jsã‚’google Chromeä¸Šã§ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚’ã¨ã£ã¦ã¿ã¾ã—ãŸ(Win Xp@Core2Dup 2.6GHz)ï¼Ž çµæžœã¯pajhomeã•ã‚“ã®å®Ÿè£…ã§ã¯20å€ä»¥ä¸Šã‚‚ã®å‡„ã¾ã˜ã„é€Ÿåº¦å‘ä¸ŠãŒã‚ã‚Šã¾ã—ãŸãŒï¼Œã‚‚ã¨ã‚‚ã¨æœ€é©åŒ–ã—ã¦ã„ãŸç§ã‚‚ã®ã‚‚ã®ã¯ã‚ã¾ã‚Šé€Ÿããªã£ã¦ã„ã¾ã›ã‚“ï¼Ž ã“ã‚Œã¯ãƒ«ãƒ¼ãƒ—ã‚¢ãƒ³ãƒãƒ¼ãƒ«ãªã©ã®(ã¤ã¾ã‚‰ãªã„)åŠªåŠ›ã¯ä¸è¦ã«ãªã‚‹ã¨ã„ã†ã“ã¨ã§ï¼Œã™ã°ã‚‰ã—ã„ã“ã¨ã§ã™ï¼Ž ãŸã æ•°å€¤è¨ˆç®—ã«é™ã£ã¦ã¯ï¼Œã‚‚ã¨ã‚‚ã¨ååˆ†ã«æœ€é©åŒ–ã•ã‚Œã¦ã„ã‚Œã°IE6ã¨å¤§ããå¤‰ã‚ã‚‹ã‚‚ã®ã§ã‚‚ãªã„ã¨ã‚‚è¨€ãˆã¾ã™ï¼Ž ã¡ãªã¿ã«C++ã§ã®SHA-1ã§ã¯0.0056msecã§ã—ãŸï¼Žã¾ã 100å€ã»ã©ã®é–‹ãã¯ã‚ã‚‹ã‚ˆã†ã§ã™ï¼Ž ã¨ã“ã‚ã§chromeã®JITéƒ¨åˆ†ã§ä½¿ã£ã¦ã‚‹assem bler-ia32.ccãªã‚“ã‹ã¿ã‚‹ã¨xbyakä½¿ã£ã¦ã»ã—ã„ãªã¨ã‹æ€ã£ãŸã‚Šï¼Žx86-64ã¸ã®å¯¾å¿œãŒç°¡å˜ã«ãªã‚‹ã¨æ€ã„ã¾ã™ãŒã„ã‹ãŒã§ã—ã‚‡ã†ï¼Ž my SHA-1pajhom
TAKESAKO 2008/09/10
v8

benchmark

x86
ãƒªãƒ³ã‚¯
Brendan's Roadmap Updates: TraceMonkey Update
We have been busy, mostly fixing bugs for stability, but also winning a bit more performance, since TraceMonkey landed on mozilla-central, from which Firefox 3.1 alpha-stage nightly builds are built. Tonight's builds include a fix for the bug that ilooped a SunSpider test (my apologies to those of you who suffered that bug's bite). But what I'm sure everyone wants to know is: how do we compare to
TAKESAKO 2008/09/09
javascript

benchmark

v8

TraceMonkey
ãƒªãƒ³ã‚¯
V8 (Google JavaScript Engine) ã‚’ embed ã—ãŸæ„Ÿæƒ³ã¨ã‹ã‚ã‚Œã“ã‚Œ - daily dayflower
ãªãœ CodeRepos ã«ç™»éŒ²ã—ãªã„ã®ã‹ ã¹ã¤ã ã‚“æ·±æ„ã‚„ç¢ºåŸ·ãŒã‚ã‚‹ã‚ã‘ã˜ã‚ƒãªãã¦ï¼Œè¯ã€…ã—ã 500 äººã‚ã®ã‚³ãƒŸãƒƒã‚¿ã«ãªã‚ã†ã¨æ€ã£ãŸã‚‰ï¼Œç¾åœ¨ 461 äººã ã£ãŸã‹ã‚‰ã§ã™ã€‚ã¨ã„ã†ã“ã¨ã§ 38 äººã®æ–¹ã€…ï¼Œã‚³ãƒŸãƒƒã‚¿ç™»éŒ²ã—ã¦ãã ã•ã„ ;P å†—è«‡ã¯ã¨ã‚‚ã‹ããŠã¾ãˆã®æ›¸ã„ãŸæ±šã„ã‚³ãƒ¼ãƒ‰ã‚’æ—©ãæ·»å‰Šã—ãŸã„ã‚“ã˜ã‚ƒã¨ã„ã†æ–¹ãŒã„ã‚‰ã£ã—ã‚ƒã£ãŸã‚‰ï¼Œä»£ç†ã§ã„ã‚Œã¨ã„ã¦æ§‹ã„ã¾ã›ã‚“ã€‚ Acme::JavaScript::V8ï¼ˆPerl XSï¼‰ã‚’æ›¸ãã¨ãã«è‹¦åŠ´ã—ãŸã“ã¨ New ã¦ã„ã†ã®ãŒ XS ã§ã® define å€¤ã ã£ãŸã®ã§å›°ã‚Šã¾ã—ãŸã€‚V8 å´ã ã¨ï¼Œnew / delete ã™ã‚‹ã‚“ã˜ã‚ƒãªãã¦ Class::New() ã™ã‚‹æµå„€ãªã®ã§ã€‚ ã§ã™ã‹ã‚‰ï¼Œ#undef New ã—ã¦ã‚ã‚Šã¾ã™ã€‚ä»–ã®ãƒžã‚¯ãƒã§ä½¿ã‚ã‚Œã¦ã„ãŸã‚‰ãƒžã‚ºã„ãªãã¨æ€ã„ã¾ã™ãŒï¼Œå‹•ã„ãŸã‹ã‚‰ã‚ˆã—ã¨ã—ã¾ã™ã€‚ ã‚¨ãƒ³ãƒ™ãƒƒãƒ€ãƒ¼ã‚ºã‚¬ã‚¤ãƒ‰ V8 JavaScript engine ã‚’èªã‚€ s
TAKESAKO 2008/09/09
>ã€New ã¦ã„ã†ã®ãŒ XS ã§ã® define å€¤ã ã£ãŸã®ã§å›°ã‚Šã¾ã—ãŸã€‚V8 å´ã ã¨ï¼Œnew / delete ã™ã‚‹ã‚“ã˜ã‚ƒãªãã¦ Class::New() ã™ã‚‹æµå„€ãªã®ã§ã€‚ã§ã™ã‹ã‚‰ï¼Œ#undef New ã—ã¦ã‚ã‚Šã¾ã™ã€‚ã€‘

v8

xs

perl

javascript
ãƒªãƒ³ã‚¯
æ’ä¾‹ã®ãƒ•ã‚£ãƒœãƒŠãƒƒãƒãƒ™ãƒ³ãƒã§ V8 ã¨ Smalltalkã€Rubyã€Pythonã€Scheme ã¨ã‚’æˆ¦ã‚ã›ã¦ã¿ã‚‹ - sumimâ€™s smalltalking-tos
çˆ†é€Ÿã§è©±é¡Œã® Google Chrome æè¼‰ JavaScript VM â€œV8â€ ã¯ã€Animorphic Smalltalk VM ãŒãƒ™ãƒ¼ã‚¹ã«ãªã£ã¦ã„ã‚‹ã‚‰ã—ã„ ã®ç¶šãã€‚ ãã®é€Ÿã„ã¨è¨€ã‚ã‚Œã‚‹ V8ã€‚å®Ÿéš›ã€ã©ã®ãã‚‰ã„ã®é€Ÿåº¦ã§å‹•ãã®ã‹ã‚’å…·ä½“çš„ãªæ•°å€¤ã¨ã—ã¦è¦‹ã¦ã¿ãŸããªã£ãŸã®ã§ã€æ‰‹è»½ã«è©¦ã™ã“ã¨ãŒã§ãã‚‹ãƒ•ã‚£ãƒœãƒŠãƒƒãƒãƒ™ãƒ³ãƒã§ã€ãã®ã‚¹ã‚³ã‚¢ã‚’æ‰‹å…ƒã®å‡¦ç†ç³»ãŸã¡ã¨ä¸¦ã¹ã¦æ¯”è¼ƒã—ã¦ã¿ã¾ã—ãŸã€‚ ç’°å¢ƒã¯ Modbook 2.4GHz Core 2 Duoï¼ˆMacBook ç›¸å½“ï¼‰ã® Vista SP1 ã§ã€40ç•ªç›®ã®ãƒ•ã‚£ãƒœãƒŠãƒƒãƒæ•°ï¼ˆ63245986ï¼‰ã®ç®—å‡ºã«ã‹ã‹ã£ãŸç§’æ•°ã‚’ã‚«ã‚¦ãƒ³ãƒˆã—ã¦ã„ã¾ã™ã€‚çµæžœã¯æ¬¡ã®ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ è¨€èªž å‡¦ç†ç³» ã‚¹ã‚³ã‚¢ [ç§’] JavaScript Google Chrome (V8) 2.95 JavaScript Firefox 3.01 (SpiderMonkey) 31.9 Small
TAKESAKO 2008/09/08
benchmark

chrome

javascript

python

ruby

v8
ãƒªãƒ³ã‚¯
tokuhirom blog
Blog Search when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${entry.path} [in template "__entry.ftlh" at line 3, column 25] - Reached through: #include "__entry.ftlh" [in template "entry.ftlh" at
TAKESAKO 2008/09/08
javascript

v8

c++
ãƒªãƒ³ã‚¯
V8 ç¥ã‚Šã¤ã¥ã - Backnumbers: Steps to Phantasien
å‰å›žã®ç¶šãã§ã™. ã‚³ãƒ¼ãƒ‰ã¯é£½ããªã„ã†ã¡ã«èªã‚. ã“ã‚Œã¾ã§ã®ã‚ã‚‰ã™ã˜: ãƒ—ãƒãƒ‘ãƒ†ã‚£ã‚¢ã‚¯ã‚»ã‚¹ã‚’é€Ÿãã—ãŸã„ã‹ã‚‰ JIT ã‚’ã—ã‚ˆã†ãœ. ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©æ¦‚è¦³ V8 ã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã¯ JavaScript ã® AST ã‚’æ©Ÿæ¢°èªžã«å¤‰æ›ã™ã‚‹. (AST ã¯ãƒ‘ãƒ¼ã‚µãŒã¤ãã‚‹.) AST ã®ãƒ„ãƒªãƒ¼æ§‹é€ ã¯, Node ã‚¯ãƒ©ã‚¹ã®ã‚µãƒ–ã‚¯ãƒ©ã‚¹ä¸€æ—ã§æ§‹æˆã•ã‚Œã¦ã„ã‚‹ (ast.h) ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã¯é–¢æ•°ã® AST ã§ã‚ã‚‹ FunctionLiteral ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã†ã‘ã¨ã£ã¦ Code ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ç”Ÿæˆã™ã‚‹. AST ã¨ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã¯(ã¾ãŸã—ã¦ã‚‚) Visitor ãƒ‘ã‚¿ãƒ¼ãƒ³ã§ã¤ãªãŒã‚‹. (Visitor å¥½ãã¯ Strongtalk ã‹ã‚‰ã®ä¼çµ±ã‚‰ã—ã„. Strongtalk VM ã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©ã‚‚åŒã˜ã‚ˆã†ãªã“ã¨ã‚’ã—ã¦ã„ã‚‹. 20 ä¸–ç´€ã®æ®‹ã‚Šé¦™ãŒ...) AST å´ã¯ Vistor ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚’æä¾›ã™ã‚‹: //ast.h cl
TAKESAKO 2008/09/08
google

javascript

v8

JIT

AST
ãƒªãƒ³ã‚¯
steps to phantasien(2008-09-07) v8ç¥ã‚Š
ã‚¦ã‚§ãƒ–ã£åã®é–“ã§ã¯ Google Chrome ã® JS å‡¦ç†ç³»ã§ã‚ã‚‹ V8 ç¥ã‚ŠãŒçµ¶è³›é–‹å‚¬ä¸ã‚‰ã—ã„. ã„ã¤ã‚‚ã¯å‡ºé…ã‚Œã‚‹ç§ã‚‚ãŸã¾ã«ã¯ã‚„ã‚“ã‚„ã—ãŸã„ã¨æ€ã£ã¦ã„ã‚ã„ã‚èªã‚“ã§ã¿ãŸã‚‚ã®ã®, VM ã«é£Ÿå‚·æ°—å‘³ãªè‡ªåˆ†ã«æ°—ä»˜ã„ãŸ. ã‘ã‚Œã©, ãã†ã¯è¨€ã£ã¦ã‚‚ç¥ã‚Šã¯åˆ¥è…¹. ä¸€é€šã‚Šé¨’ã„ã§ã¿ã¾ã™. è²©ä¿ƒãƒžãƒ³ã‚¬ ã‚„ è³‡æ–™ ã«ã‚ˆã‚Œã°, V8 ã¯ä»¥ä¸‹ã®ã‚ˆã†ãªç‰¹å¾´ã‚’å‚™ãˆã¦ã„ã‚‹. hidden class transition ã¨ fast property access generational accurate GC accurate ã ã‹ã‚‰ incremental GC ã‚‚ã§ãã‚‹ ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã® rellocation ã¯ã™ã‚‹ã‘ã© handle ã¯ä½¿ã‚ãšå‚ç…§å…ƒæ›¸ãæ›ãˆ ä¸é–“è¡¨ç¾ã®ã‚¤ãƒ³ã‚¿ãƒ—ãƒªã‚¿ãªã—ã® native code ç”Ÿæˆ. instruction cache ã‚³ãƒ¼ãƒ‰ã‚’ã¿ãŸã¨ã“ã‚, incremental GC
TAKESAKO 2008/09/08
javascript

v8

vm

JIT
ãƒªãƒ³ã‚¯
é«˜åç™ºãƒžãƒƒãƒˆãƒ¬ã‚¹ã®é¸ã³æ–¹ | ã‚¢ãƒ•ã‚£ãƒ–ãƒã‚°ã«é¨™ã•ã‚Œãªã„ç‚ºã®é«˜åç™ºãƒžãƒƒãƒˆãƒ¬ã‚¹æ‰‹è¨˜
ã‚¦ãƒ¬ã‚¿ãƒ³ç³»é«˜åç™ºãƒžãƒƒãƒˆãƒ¬ã‚¹ã§ã‚ˆãè¨€åŠã•ã‚Œã‚‹ã®ãŒå¯†åº¦ã§ã™ã€‚ãã‚Œã‚’é ‘å¼µã£ã¦åˆ†ã‹ã‚Šã‚„ã™ãèª¬æ˜Žã—ã¦ã¿ã¾ã™ã€‚
TAKESAKO 2008/09/08
google

chrome

browser

javascript

v8

benchmark
ãƒªãƒ³ã‚¯
lucille development blog Â» Blog Archive Â» x86toLLVM?
V8 ã®åãã‚¢ã‚»ãƒ³ãƒ–ãƒ©ã¯æœ€é©åŒ–ã•ã‚Œã¦ã„ãªã„ã¨æ›¸ã„ãŸãŒ(link)ã€ã“ã“ã§ã€ç¬¬ä¸€å›ž LLVM å‹‰å¼·ä¼šã®ã¨ãã«ã‚‚ã™ã“ã—è©±é¡Œã«ä¸ŠãŒã£ãŸã‘ã‚Œã©ã‚‚ã€x86 å‘½ä»¤ã‚’ LLVM IR ã«å¤‰æ›ã™ã‚‹ãƒ‡ã‚£ã‚¹ã‚¢ã‚»ãƒ³ãƒ–ãƒ©ã¨ã‹ã‚ã‚‹ã¨ãŠã‚‚ã—ã‚ã„ã‹ã‚‚ã—ã‚Œãªã„. ãã‚ŒãŒã‚ã‚‹ã¨ã€ãŸã¨ãˆã° V8 ã«å¯¾ã—ã¦ã€ JS -> (V8 x86 backend) -> x86(unoptimized) -> (x86 to LLVM backend) -> LLVMIR -> (optimize & LLVM x86 backend) -> x86(optimized) ã¨ã„ã†ã€æœ€é©åŒ–ã•ã‚Œã¦ã„ãªã„ x86 å‘½ä»¤ãŒã‚ã‚‰ä¸æ€è°ã€æœ€é©åŒ–ã•ã‚ŒãŸ x86 å‘½ä»¤ã«å¤‰æ›ã•ã‚Œã¦ã•ã‚‰ã« V8 ãŒé«˜é€ŸåŒ–ã•ã‚Œã¾ã—ãŸã€ã¨ã„ã†ã“ã¨ãŒã§ãã‚‹. ãŸã LLVM ã¯ã§ã‹ã„ã—ãƒ¡ãƒ¢ãƒªã‚’é£Ÿã†ã®ã§ã€ã“ã®ã‚ˆã†ãªå¤‰æ›ã¯çµ„ã¿è¾¼ã¿ãƒ‡ãƒã‚¤ã‚¹ã§ã‚„ã‚‹ã®ã¯é›£ã—ãã¦ã€ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ã§ã®ç”¨
TAKESAKO 2008/09/07
x86

llvm

v8

JIT
ãƒªãƒ³ã‚¯
è„‡ç”° å»º Â· V8ãŒã‚‚ãŸã‚‰ã™ä¸–ç•Œ
äºŒæ—¥å‰ã« Google ãŒ Chrome ã¨ã„ã†ã‚¦ã‚§ãƒ–ãƒ–ãƒ©ã‚¦ã‚¶ã‚’ç™ºè¡¨ã—ã¾ã—ãŸã€‚Windows ç‰ˆã—ã‹å…¬é–‹ã•ã‚Œã¦ã„ãªã„ã®ã§ã€Mac ãƒ¦ãƒ¼ã‚¶ã®ç§ã¯å®Ÿéš›ã®è£½å“ã«è§¦ã‚Œã‚‹æ©Ÿä¼šãŒã¾ã ã‚ã‚Šã¾ã›ã‚“ã€‚å€‹ã€…ã®æ©Ÿèƒ½ã®å¤šãã¯æ—¢å˜ã®ãƒ–ãƒ©ã‚¦ã‚¶ã®ã‚‚ã®ã‚’å¯„ã›é›†ã‚ãŸã‚‚ã®ã®ã€ãã‚ŒãŒã¨ã¦ã‚‚ã†ã¾ã„å…·åˆã«å¯„ã›é›†ã‚ã‚‰ã‚Œã¦ã„ã‚‹ã¨ã„ã†å™‚ã«ã¯å°‘ã—ã‚ãã‚ãã—ã¾ã™ã€‚ ä»Šæ—¥ã®è©±é¡Œã«é¸ã‚“ã V8 ã¯ Chrome ã«å†…è”µã•ã‚Œã¦ã„ã‚‹ JavaScript ã®ã‚¨ãƒ³ã‚¸ãƒ³ã§ã™ã€‚ã“ã“æ•°å¹´ã€JavaScript ã®åˆ©ç”¨ã¯é€²ã¿ã€ãã‚Œã«ã¤ã‚Œã¦å¾ã€…ã« JavaScript ã‚¨ãƒ³ã‚¸ãƒ³ã®æ€§èƒ½ã¯å‘ä¸Šã—ã¦ã„ã¾ã™ã€‚ã§ã‚‚ã€Google V8 ã«ã‚ˆã£ã¦ã€ã‚ˆã†ã‚„ãæœ€æ–°ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžå®Ÿè£…ç†è«–ãŒã‚¹ã‚¯ãƒªãƒ—ãƒˆè¨€èªžã«å¿œç”¨ã•ã‚ŒãŸã“ã¨ã«ãªã‚Šã¾ã™ã€‚ã“ã‚Œã«ã‚ˆã£ã¦ã€JavaScript ã¯æ ¸ã®éƒ¨åˆ†ã§10å€ç¨‹åº¦ã®é«˜é€ŸåŒ–ãŒé”æˆã•ã‚Œã¾ã™ã€‚ ã“ã‚Œã¯ã“ã‚Œã§å¤§å¤‰ãªã“ã¨ãªã®ã§ã™ãŒã€ã“ã®ã‚ˆã†ãªã‚·ã‚¹ãƒ†ãƒ ã®ç™»å ´ã¯
TAKESAKO 2008/09/06
ã€ Lively Kernelã¿ãŸã„ãªã‚‚ã®ã‚ã‚Šã¾ã™ã‹ã‚‰ã€é–‹ç™ºç’°å¢ƒã‚‚ã‚¨ãƒ³ãƒ‰ãƒ¦ãƒ¼ã‚¶ãƒ¼å‘ã‘ã‚¹ã‚¯ãƒªãƒ—ãƒ†ã‚£ãƒ³ã‚°ç’°å¢ƒã‚‚è‡ªå‰ã§ã‚‚ã¦ã¾ã™ã‹ã‚‰ãã€‚ ã€‘

javascript

v8
ãƒªãƒ³ã‚¯
John Resig - JavaScript in Chrome
Google Chrome has taken the browser world by storm. It makes for an exciting release, no doubt, especially with a brand new JavaScript engine on the table. However the most important question, to JavaScript developers, is: How will this affect my normal development routine? Iâ€™ve done some research, talked to some developers, submitted some bugs and come back with a list of things that you should p
TAKESAKO 2008/09/06
javascript

v8

Chrome
ãƒªãƒ³ã‚¯
v8 (Google JavaScript Engine) ã‚’ Perl XS ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã«ã—ã¦ã¿ãŸ - daily dayflower
ã‚„ã¯ã‚Šã‚„ã£ã¤ã‘ã§ã€‚Joke module ã§ã™ã€‚ ã„ã‚ã„ã‚æ›¸ããŸã„ã“ã¨ãŒã‚ã‚‹ã‘ã©ï¼Œãã®ã†ã¡ï¼ˆè¿½è¨˜ã™ã‚‹ã‹ã‚‚ï¼‰ã€‚ libv8 ã¨ XS ã®é–“ã‚’ã¨ã‚Šã‚‚ã¤ bridge.ccã€‚ /* bridge.cc */ #include <v8.h> #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #include "ppport.h" /* harmful macro!, but, but, ... */ #undef New #include "bridge.h" using namespace v8; class V8Context { public: V8Context() { HandleScope scope; Handle<ObjectTemplate> global = ObjectTemplate::New(); Handle
TAKESAKO 2008/09/06
javascript

perl

v8

xs
ãƒªãƒ³ã‚¯
lucille development blog Â» Blog Archive Â» V8 benchmarked
æœ€è¿‘ã¯ã‚·ã‚§ãƒ¼ãƒ€ JIT ã®å¯èƒ½æ€§ã‚’ã„ã‚ã„ã‚æŽ¢ç´¢ã™ã‚‹ãŸã‚ã«ã‚³ãƒ³ãƒ‘ã‚¤ãƒ©æŠ€è¡“ã‚’èª¿ã¹ã¦ã„ã¾ã™. è«–æ–‡ã‚’èªã‚“ã§ã„ã‚‹ã¨ã€JIT æŠ€è¡“ã®ç ”ç©¶ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ãŒç›®æŒ‡ã—ã¦ã„ã‚‹ã²ã¨ã¤ã®è¡Œãå…ˆã¯å‹•çš„è¨€èªžã®é«˜é€Ÿå®Ÿè¡Œã§ã‚ã‚‹ã“ã¨ãŒåˆ†ã‹ã‚‹. ã¡ã‚‡ã†ã© Google Chrome ã® JavaScript ã‚¨ãƒ³ã‚¸ãƒ³ V8 ãŒãªã‚“ã‹æ—©ã„ã‚‰ã—ã„ã¨ã„ã†ã“ã¨ã§ã€ ã™ã“ã—ä¸èº«ã‚’ã—ã‚‰ã¹ã€BlackScholes è¨ˆç®—ã§ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã‚’å–ã£ã¦ã¿ã¾ã—ãŸ. V8 V8 ã®å®Ÿè¡Œæ€§èƒ½ã«ã¤ã„ã¦ã¯ã€ John Resig æ°ã®ã‚µã‚¤ãƒˆã«æ¯”è¼ƒãŒã„ã‚ã„ã‚ã‚ã‚‹ã®ã§å‚ç…§ã—ã¦ã»ã—ã„. http://ejohn.org/blog/javascript-performance-rundown/ ãƒ™ãƒ³ãƒã®å†…å®¹ã«ã‚‚ã‚ˆã‚‹ã®ã ãŒã€Chrome ãƒ™ãƒ³ãƒã‚’é™¤ã‘ã°ã€ Tracing JIT ã«ã‚ˆã‚‹ TraceMonkey ã¨å¤§ä½“åŒç¨‹åº¦ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’å®Ÿç¾ã—ã¦ã„ã‚‹. V8
TAKESAKO 2008/09/05
ã€V8ã¯JSã®ã‚³ãƒ¼ãƒ‰ã‚’ãƒ‘ãƒ¼ã‚¹ã—ã¦ASTã‚’ä½œã£ãŸã‚ã¨ãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆã«ASTã‹ã‚‰ãƒã‚¤ãƒ†ã‚£ãƒ–ã‚³ãƒ¼ãƒ‰(x86,arm)ã‚’åãå‡ºã—ã¦ã„ã‚‹ã€‚ã“ã‚Œã®åˆ©ç‚¹ã¯ã€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã®ãƒ•ã‚§ãƒ¼ã‚ºãŒå°‘ãªã„ã®ã§ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«å‡¦ç†ãŒé«˜é€Ÿã«ãªã‚‹ã“ã¨ã€‚ã€‘

javascript

jit

v8

benchmark
ãƒªãƒ³ã‚¯
ce-lab.net
This domain may be for sale!
TAKESAKO 2008/09/04
v8

google

chrome

gc

vm
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Ruby on V8 Â« Marc-AndrÃ© Cournoyerâ€™s blog
Google Chrome looks cool, okâ€¦ But what is even cooler for me is V8, the super JavaScript VM. JavaScript is a dynamic language, just like Ruby. You can add stuff to objects at runtime, like Ruby. Itâ€™s object oriented, like Ruby. It has a GC, like Ruby. â€¦ What if we could run Ruby on V8? Well, itâ€™s a lot easier that you think. If you rem ember a while ago, someone released HotRuby. It runs YARV bytec
TAKESAKO 2008/09/04
>>> OMG OMG OMG OMG!!! 10 times faster then YARV

javascript

ruby

v8
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