Introduction — An Introduction to libuv
Introduction¶ This ‘book’ is a small set of tutorials about using libuv as a high performance evented I/O library which offers the same API on Windows and Unix. It is meant to cover the main areas of libuv, but is not a comprehensive reference discussing every function and data structure. The official libuv documentation may be consulted for full details. This book is still a work in progress, so
Jose Valimã€Rubyã«ãŠã‘る並行プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ãŸã‚ã®ã„ãã¤ã‹ã®ã‚¢ã‚¤ãƒ‡ã‚¢ã‚’æ案。～ RubyKaigi 2013 基調講演 2日目 | gihyo.jp
RubyKaigi 2013 レãƒãƒ¼ãƒˆ Jose Valimã€Rubyã«ãŠã‘る並行プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ãŸã‚ã®ã„ãã¤ã‹ã®ã‚¢ã‚¤ãƒ‡ã‚¢ã‚’æ案。～ RubyKaigi 2013 基調講演 2日目 2013å¹´5月30日～6月1æ—¥ã®3日間ã€ãŠå°å ´ã«ã‚ã‚‹æ±äº¬å›½éš›äº¤æµé¤¨ã«ã¦RubyKaigi 2013ãŒé–‹å‚¬ã•ã‚Œã¦ã„ã¾ã™ã€‚基調講演をãã‚Œãžã‚Œãƒ¬ãƒãƒ¼ãƒˆã—ã¾ã™ã€‚ 2日目ã®åŸºèª¿è¬›æ¼”ã®æ¼”者ã¯Jose Valimã§ã™ã€‚å¸ä¼šã®è§’è°·ã•ã‚“ã«ã‚ˆã‚Šã€Œå†èµ·å‹•ã—ãŸRubyKaigiã®åŸºèª¿è¬›æ¼”ã«æœ€ã‚‚ãµã•ã‚ã—ã„人物ã®ä¸€äººã€ã¨ç´¹ä»‹ã‚’ã•ã‚ŒãŸJoseã¯ã€Rubyã«ãŠã‘る並行プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®å¯èƒ½æ€§ã«ã¤ã„ã¦è©±ã—ã¾ã—ãŸã€‚ 自己紹介 Joseã¯ã€2006å¹´ã‹ã‚‰Rubyを書ã始ã‚ãŸãã†ã§ã™ã€‚ãã‚Œã‹ã‚‰OSSã«ã‚‚æ·±ãé–¢ã‚ã£ã¦ãŠã‚Šã€2010å¹´ã‹ã‚‰Rails coreãƒãƒ¼ãƒ ã«ã‚¸ãƒ§ã‚¤ãƒ³ã—ã¦ã„ã¾ã™ã€‚ãã—ã¦ã€Elixirã¨ã„ã†è¨€èªžã®ä½œè€…ã§ã‚‚ã‚ã‚Šã¾ã™ã€‚Elixirã¯Erla
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The Engine Yard PaaS products are highly complex, and span thousands of servers to serve our customers. Ensuring that our applications run quickly and reliably requires a good understanding of concurrency and parallelization. This blog post is a recap of my journey down the rabbit hole of concurrency in an attempt to solve this problem in my own development efforts. Part II will be the continuatio
[ruby-dev:30827] Supporting Fiber
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Ruby gvl-improvement at ruby 1.9.3
The document discusses Ruby's Global VM Lock (GVL) and improvements made in Ruby version 1.9.3. The GVL ensures only one Ruby thread can execute at a time, limiting Ruby's ability to take advantage of multi-core CPUs. Ruby 1.9.3 improves threading performance by releasing the GVL during I/O operations, allowing other threads to run while one thread is blocked on I/O. It also uses POSIX sched_yield
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Painless multithreaded programming for Ruby Celluloid is a concurrent object oriented programming framework for Ruby which lets you build multithreaded programs out of concurrent objects just as easily as you build sequential programs out of regular objects! Learn more Evented I/O for Celluloid actors. Build fast evented programs like you would with EventMachine or Node.js using regular synchronou
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Ruby developers need to stop using EventMachine. It's the wrong direction. Lost in the "Threads vs Event Driven vs Process Spawning" debate is that you can combine them! Learn how Celluloid is improving thread programming by abstracting them using a higher level framework called Celluloid, how you can use Celluloid::IO to throw a reactor pattern into a thread. Using this approach, you can take adv
8ç« Rinda
I like Ruby. (07-05) 借り物人生 (07-05) 通販生活 (07-05) I like iPod (05-24) RWiki (05-14) Download (05-14) ソフトウェア・シンãƒã‚¸ã‚¦ãƒ 2003 (04-28) ruby-amazonã§AmazonWebService (04-16) DI ary (04-05) KoyaãªTropy (03-29) Rindaã¯åˆ†æ•£å‡¦ç†ã‚·ã‚¹ãƒ†ãƒ Lindaã®tuple spaceã®Rubyã«ã‚ˆã‚‹å®Ÿè£…ã§ã™ Lindaã§ã¯ã‚¿ãƒ—ルã¨ã‚¿ãƒ—ル空間ã®äºŒã¤ã®æ¦‚念ãŒã‚ã‚Šã¾ã™ã€‚ タスクã¯ã‚¿ãƒ—ルをタプル空間ã¸æ›¸ã込んã り〠タプル空間ã‹ã‚‰ã‚¿ãƒ—ルをå–り出ã—ãŸã‚Šã™ã‚‹ã“ã¨ã§é€šä¿¡ã‚’è¡Œãªã„ã¾ã™ã€‚ Lindaã®ãƒ¢ãƒ‡ãƒ«ã¯ãã‚ã‚ã¦å˜ç´”ã§ã™ãŒã€ 複雑ãªãƒ—ãƒã‚»ã‚¹é–“通信を容易ã«è¨˜è¿°ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ ã“ã®ç« ã§ã¯Lindaã®Rubyã«ã‚ˆã‚‹å®Ÿè£…ã§ã‚ã‚‹Rinda
スレッド間通信ã®ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ã‚’比較ã™ã‚‹ - Blog by Sadayuki Furuhashi
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8.1 スレッド状態 (thread state) ã¨ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ (global interpreter lock)
8.1 スレッド状態 (thread state) ã¨ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ (global interpreter lock) Python インタプリタã¯å®Œå…¨ã«ã‚¹ãƒ¬ãƒƒãƒ‰å®‰å…¨ (thread safe) ã§ã¯ã‚ã‚Šã¾ã›ã‚“。 マルãƒã‚¹ãƒ¬ãƒƒãƒ‰ã® Python プãƒã‚°ãƒ©ãƒ をサãƒãƒ¼ãƒˆã™ã‚‹ãŸã‚ã«ã€ã‚°ãƒãƒ¼ãƒãƒ«ãª ãƒãƒƒã‚¯ãŒå˜åœ¨ã—ã¦ã„ã¦ã€ç¾åœ¨ã®ã‚¹ãƒ¬ãƒƒãƒ‰ãŒ Python オブジェクトã«å®‰å…¨ã« アクセスã™ã‚‹å‰ã«å¿…ãšãƒãƒƒã‚¯ã‚’ç²å¾—ã—ãªã‘ã‚Œã°ãªã‚‰ãªããªã£ã¦ã„ã¾ã™ã€‚ ãƒãƒƒã‚¯æ©Ÿæ§‹ãŒãªã‘ã‚Œã°ã€å˜ç´”ãªæ“作ã§ã•ãˆã€ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰ãƒ—ãƒã‚°ãƒ©ãƒ 㮠実行ã«å•é¡Œã‚’引ãèµ·ã“ã™å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™: ãŸã¨ãˆã°ã€äºŒã¤ã®ã‚¹ãƒ¬ãƒƒãƒ‰ãŒ åŒã˜ã‚ªãƒ–ジェクトã®å‚照カウントをåŒæ™‚ã«ã‚¤ãƒ³ã‚¯ãƒªãƒ¡ãƒ³ãƒˆã™ã‚‹ã¨ã€ çµæžœçš„ã«å‚照カウントã¯äºŒå›žã§ãªã一回ã ã‘ã—ã‹ã‚¤ãƒ³ã‚¯ãƒªãƒ¡ãƒ³ãƒˆã•ã‚Œãªã„ ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。 ã“ã®ãŸã‚ã€ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ã‚’ç²å¾—ã—ãŸã‚¹ãƒ¬ãƒƒãƒ‰ã ã‘ãŒ
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<< 2007/09/ 1 1. U20プãƒã‚³ãƒ³æœ€çµ‚審査会 2. æ»ãªãªã„ãŸã‚ã« 3. [Ruby] davidflanagan.com: Nifty Ruby Unicode codepoints utility 2 1. [教会] 第一日曜日 3 1. [Ruby] RubyアソシエーションãŒRuby言語公å¼ãƒã‚´ã®ãƒ‡ã‚¶ã‚¤ãƒ³å‹Ÿé›†ï¼šITpro 2. [OSS] Open Tech Press | GNU GPLv3 日本語訳 3. [言語] retlang - Google Code 4 1. Full Disclosure: World's most powerful supercomputer goes online (fwd) 2. [知財] 元麻布春男ã®é€±åˆŠPCホットライン - DRMã©ã“ã‚ã‹EPNã‚‚å«Œã„ã 3. å–æ 5 1. å–æ 2. [Ruby] Ruby needs a
プリエンプション - Wikipedia
プリエンプション（英: preemption）ã¯ã€ãƒžãƒ«ãƒã‚¿ã‚¹ã‚¯ã®ã‚³ãƒ³ãƒ”ュータシステムãŒå®Ÿè¡Œä¸ã®ã‚¿ã‚¹ã‚¯ã‚’一時的ã«ä¸æ–ã™ã‚‹å‹•ä½œã§ã‚ã‚Šã€åŸºæœ¬çš„ã«ãã®ã‚¿ã‚¹ã‚¯è‡ªä½“ã®å”力ã¯ä¸è¦ã§ã€å¾Œã§ãã®ã‚¿ã‚¹ã‚¯ã‚’å†å®Ÿè¡Œã™ã‚‹ã¨ã„ã†æ„味もå«ã‚€ã€‚ã“ã®ã‚ˆã†ãªå‹•ä½œã‚’コンテã‚ストスイッãƒã¨å‘¼ã¶ã€‚通常ã€ä¿è·ã•ã‚ŒãŸã‚¿ã‚¹ã‚¯ã‹ã€ã‚·ã‚¹ãƒ†ãƒ ã®ä¸€éƒ¨ã§ã‚るプリエンプティブスケジューラãŒè¡Œã†ã€‚ãれらã¯ã€ã‚·ã‚¹ãƒ†ãƒ 内ã®ä»–ã®ã‚¿ã‚¹ã‚¯ã«å‰²ã‚Šè¾¼ã¿ã€å¾Œã§ãれらタスクをå†é–‹ã•ã›ã‚‹ã“ã¨ãŒã§ãる。「プリエンプトã€ã¨ã¯ã€Œå…ˆå–ã‚Šã™ã‚‹ã€å·®ã—替ãˆã‚‹ã€ã®æ„。 ã©ã‚“ãªã‚·ã‚¹ãƒ†ãƒ è¨è¨ˆã§ã‚‚ã€ãƒ—リエンプションä¸å¯èƒ½ãªæ“作ãŒå˜åœ¨ã™ã‚‹ã€‚ãã‚Œã¯é€šå¸¸ã‚«ãƒ¼ãƒãƒ«ã®æ©Ÿèƒ½ã‚„割り込ã¿å‡¦ç†ã§ã‚ã‚Šã€ãれらを完了ã¾ã§å®Ÿè¡Œã§ãるよã†ã«ã—ã¦ãŠã‹ãªã„ã¨ã€ç«¶åˆçŠ¶æ…‹ãŒç™ºç”Ÿã—ã‚„ã™ããªã‚Šã€ãƒ‡ãƒƒãƒ‰ãƒãƒƒã‚¯ã‚’誘発ã™ã‚‹ã€‚タスクãŒã‚«ãƒ¼ãƒãƒ«æ©Ÿèƒ½ã‚’処ç†ä¸ã¯ã€ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ãŒãƒ—リエンプションã§ããªã„よã†ã«ã™ã‚‹ã“ã¨ã§ã€ã‚·ã‚¹ãƒ†ãƒ ã®å応性を若干çŠ
マルãƒã‚¿ã‚¹ã‚¯ - Wikipedia
ã“ã®é …ç›®ã§ã¯ã€ã‚³ãƒ³ãƒ”ュータã®ãƒžãƒ«ãƒã‚¿ã‚¹ã‚¯ã«ã¤ã„ã¦èª¬æ˜Žã—ã¦ã„ã¾ã™ã€‚人間ã®ãƒžãƒ«ãƒã‚¿ã‚¹ã‚¯ã«ã¤ã„ã¦ã¯ã€Œãƒžãƒ«ãƒã‚¿ã‚¹ã‚¯ (心ç†å¦)ã€ã‚’ã”覧ãã ã•ã„。 ã“ã®è¨˜äº‹ã¯æ¤œè¨¼å¯èƒ½ãªå‚考文献や出典ãŒå…¨ã示ã•ã‚Œã¦ã„ãªã„ã‹ã€ä¸å分ã§ã™ã€‚ å‡ºå…¸ã‚’è¿½åŠ ã—ã¦è¨˜äº‹ã®ä¿¡é ¼æ€§å‘上ã«ã”å”力ãã ã•ã„。（ã“ã®ãƒ†ãƒ³ãƒ—レートã®ä½¿ã„方） 出典検索?: "マルãƒã‚¿ã‚¹ã‚¯" – ニュース · 書ç±Â · スカラー · CiNii · J-STAGE · NDL · dlib.jp · ジャパンサーãƒÂ · TWL (2023å¹´1月) マルãƒã‚¿ã‚¹ã‚¯ (英: multi tasking) ã¯ã€ã‚³ãƒ³ãƒ”ュータã«ãŠã„ã¦è¤‡æ•°ã®ã‚¿ã‚¹ã‚¯ï¼ˆãƒ—ãƒã‚»ã‚¹ï¼‰ã‚’切り替ãˆã¦å®Ÿè¡Œã§ãるシステムã®ã“ã¨ã§ã‚る。Unixãªã©ã€Œãƒ—ãƒã‚»ã‚¹ã€ã¨ã„ã†ç”¨èªžã‚’使ã†ã‚·ã‚¹ãƒ†ãƒ ã§ã¯ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹ã¨ã‚‚ã„ã†ï¼ˆã»ã¼åŒã˜ã‚‚ã®ã‚’別ã®ã‚·ã‚¹ãƒ†ãƒ ã§ã¯åˆ¥ã®åã§å‘¼ã‚“ã§ã„ã‚‹ã“ã¨ã‚‚ã‚ã‚Œã°ã€é•ã†ã‚‚ã®ã‚’åŒã˜åã§å‘¼ã‚“ã§ã„ã‚‹ã“ã¨ã‚‚ã‚ã‚Œã°
グリーンスレッド - Wikipedia
グリーンスレッド（英: green threads）ã¨ã¯ã€ã‚³ãƒ³ãƒ”ュータプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«ãŠã„ã¦ã€ã‚ªãƒšãƒ¬ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã‚·ã‚¹ãƒ†ãƒ ã§ã¯ãªãã€ãƒ©ãƒ³ã‚¿ã‚¤ãƒ ライブラリや仮想マシン (VM) ã«ã‚ˆã£ã¦ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ«ã•ã‚Œã‚‹ã‚¹ãƒ¬ãƒƒãƒ‰ã§ã‚る。グリーンスレッドã¯ãƒã‚¤ãƒ†ã‚£ãƒ–ã®OSã®æ©Ÿèƒ½ã«ä¾å˜ã›ãšã«ä¸¦è¡Œæ€§ã‚’実ç¾ã™ã‚‹ã»ã‹ã€ã‚«ãƒ¼ãƒãƒ«ç©ºé–“ã§ã¯ãªãユーザー空間ã§ç®¡ç†ã•ã‚Œã‚‹ãŸã‚ãƒã‚¤ãƒ†ã‚£ãƒ–スレッドãŒã‚µãƒãƒ¼ãƒˆã•ã‚Œã¦ã„ãªã„環境ã§ã‚‚動作ã—ã†ã‚‹ã€‚ マルãƒã‚³ã‚¢ãƒ—ãƒã‚»ãƒƒã‚µã®ã‚·ã‚¹ãƒ†ãƒ ã§ã¯ã€ãƒã‚¤ãƒ†ã‚£ãƒ–スレッドã®å®Ÿè£…ã¯å‡¦ç†ã‚’複数ã®ãƒ—ãƒã‚»ãƒƒã‚µã«å‰²ã‚Šå½“ã¦ã‚‹ã“ã¨ãŒã§ãる。ã“ã‚Œã¯ã‚°ãƒªãƒ¼ãƒ³ã‚¹ãƒ¬ãƒƒãƒ‰ã®å®Ÿè£…ã§ã¯ä¸å¯èƒ½ã§ã‚る。ã“ã®ã‚ˆã†ãªç’°å¢ƒã§ã¯ãƒã‚¤ãƒ†ã‚£ãƒ–スレッドã«æ˜Žã‚‰ã‹ãªåˆ©ç‚¹ãŒã‚る。ã—ã‹ã—ã€ãƒ¦ãƒ‹ãƒ—ãƒã‚»ãƒƒã‚µã®ã‚·ã‚¹ãƒ†ãƒ ã§ã¯ã€æœ€ã‚‚効率ã®ã‚ˆã„モデルãŒä½•ãªã®ã‹ã€ã„ã¾ã 明確ãªç”ãˆã¯ãªã„[1]。 ã¾ãŸã€ãƒã‚¤ãƒ†ã‚£ãƒ–スレッド（ã‚ã‚‹ã„ã¯ãƒžãƒ«ãƒãƒ—ãƒã‚»ã‚¹å‡¦ç†ï¼‰ã¨ã‚°ãƒªãƒ¼ãƒ³ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’併用ã™ã‚‹ã“ã¨
ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ - Wikipedia
ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ï¼ˆè‹±: Global Interpreter Lock, GIL）ã¨ã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã®ã‚¤ãƒ³ã‚¿ãƒ—リタã®ã‚¹ãƒ¬ãƒƒãƒ‰ã«ã‚ˆã£ã¦ä¿æŒã•ã‚Œã‚‹ã‚¹ãƒ¬ãƒƒãƒ‰ã‚»ãƒ¼ãƒ•ã§ãªã„コードをã€ä»–ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã¨å…±æœ‰ã—ã¦ã—ã¾ã†ã“ã¨ã‚’防ããŸã‚ã®æŽ’ä»– ãƒãƒƒã‚¯ã§ã‚る。インタプリタã®ã²ã¨ã¤ã®ãƒ—ãƒã‚»ã‚¹ã”ã¨ã«å¿…ãšã²ã¨ã¤ã® GIL ãŒå˜åœ¨ã™ã‚‹ã€‚ プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã«ãŠã„ã¦ã‚°ãƒãƒ¼ãƒãƒ«ã‚¤ãƒ³ã‚¿ãƒ—リタãƒãƒƒã‚¯ã‚’採用ã—ãŸå ´åˆã€è¤‡æ•°ã®ã‚¹ãƒ¬ãƒƒãƒ‰ã‚’æŒã¤ã‚¤ãƒ³ã‚¿ãƒ—リタプãƒã‚»ã‚¹ã®ä¸¦è¡Œæ€§ã‚’制é™ã—ã¦ã—ã¾ã†ã€‚プãƒã‚»ã‚¹ã‚’マルãƒãƒ—ãƒã‚»ãƒƒã‚µã®ãƒžã‚·ãƒ³ã§å®Ÿè¡Œã•ã›ãŸå ´åˆã€ã»ã¨ã‚“ã©ã‚ã‚‹ã„ã¯ã¾ã£ãŸã速度ã®å‘上ãŒè¦‹ã‚‰ã‚Œãªã„。 ã“ã†ã—ãŸãƒãƒƒã‚¯ã‚’採用ã™ã‚‹ç†ç”±ã¨ã—ã¦ã€ä¸‹è¨˜ã®ã‚‚ã®ãŒã‚る。 シングルスレッドã®ãƒ—ãƒã‚°ãƒ©ãƒ ã®é€Ÿåº¦å‘上（ã™ã¹ã¦ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€ ã«å¯¾ã—ã¦åˆ¥ã€…ã«ãƒãƒƒã‚¯ã‚’ç²å¾—・解放ã™ã‚‹å¿…è¦ãŒãªããªã‚‹ï¼‰ 通例スレッドセーフã§ã¯ãªã„C言語ã®ãƒ©ã‚¤ãƒ–ラリã¨ã®çµåˆãŒå®¹æ˜“ã§ã‚る。
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