Kotlin and Groovy JVM Languages with AWS Lambda | Amazon Web Services
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マルãƒã‚³ã‚¢æ™‚代ã®ãƒ—ãƒã‚°ãƒ©ãƒžã¯é–¢æ•°è„³ã«ãªã‚ã†ã€œScala・Clojure〜 - Tech-Sketch
å‰å›ž ã®è¨˜äº‹ã§ã¯ã€é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®æ¦‚念ã¨Java8ã«ã‚ˆã‚‹å®Ÿè£…例を示ã—ã¾ã—ãŸã€‚ã—ã‹ã—Java8ã®ãƒªãƒªãƒ¼ã‚¹ã¯æ¥å¹´ã¾ã§å»¶æœŸã•ã‚Œã¦ã—ã¾ã£ãŸãŸã‚ã€ä»Šã™ã試ã—ã¦ã¿ã‚‹ã«ã¯å°‘ã—ãƒãƒ¼ãƒ‰ãƒ«ãŒé«˜ã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。 ãã“ã§ä»Šå›žã¯ã€Java7ã®JVM上ã§å‹•ä½œã™ã‚‹ä»£è¡¨çš„ãªé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã€ Scala 㨠Clojure を紹介ã—ã¾ã™ã€‚ Scalaã¨ã¯ ã§ã¯ã€ Scala ã‹ã‚‰ç´¹ä»‹ã—ã¾ã—ょã†ã€‚ Scalaã¯JVM上ã§å‹•ä½œã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§ã€é–¢æ•°åž‹ã®ç‰¹å¾´ã¨ã‚ªãƒ–ジェクト指å‘ã®ç‰¹å¾´ã‚’åˆã‚ã›æŒã£ãŸã€æ¬²å¼µã‚Šãªè¨€èªžã§ã™ã€‚ JVM上ã§å‹•ä½œã™ã‚‹ãŸã‚ã€æ—¢å˜ã®è†¨å¤§ãªJavaライブラリをãã®ã¾ã¾æµç”¨ã§ãã€JVMã®ãƒ‘フォーマンスãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒŽã‚¦ãƒã‚¦ã‚’最大é™æ´»ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã¾ãŸJavaよりも豊富ãªè¨˜è¿°å½¢å¼ã‚’æŒã¡ãªãŒã‚‰ã‚‚Javaオブジェクトをãã®ã¾ã¾æ‰±ãˆã€å¼·åŠ›ãªåž‹æŽ¨è«–ã‚’æŒã£ãŸé™çš„型付ã‘言語ã§ã‚‚ã‚ã‚‹ãŸã‚ã€å®šåž‹çš„ã§å†—
[Clojure]clojure.asmã§Hello World
Clojureã¯ãƒã‚¤ãƒˆã‚³ãƒ¼ãƒ‰ã‚’作æˆã™ã‚‹ãŸã‚ã« ASM ã¨ã„ã†ãƒ©ã‚¤ãƒ–ラリ(Javaãƒã‚¤ãƒˆã‚³ãƒ¼ãƒ‰æ“作用フレームワーク)ã‚’ 利用ã—ã¦ã„るよã†ã§ã™ã€‚ (JVMã®)Clojureを利用ã§ãる環境ã§ã¯(ãŸã¶ã‚“)ASMãŒåˆ©ç”¨ã§ãã‚‹(clojure.asm)ã®ã§ã€ 勉強ãŒã¦ã‚‰ã“ã®ãƒ©ã‚¤ãƒ–ラリを利用ã—ã¦HelloWorldプãƒã‚°ãƒ©ãƒ を作æˆã—ã¦ã¿ã¾ã™ã€‚ (import '[clojure.asm ClassWriter Opcodes]) (def target-name "Hello") (def cw (ClassWriter. ClassWriter/COMPUTE_MAXS)) ;; public class Hello extends java.lang.Object { ... (.visit cw Opcodes/V1_5 ; ãƒãƒ¼ã‚¸ãƒ§ãƒ³ Opcodes/ACC_PUBLIC ; アクセス修飾å
Javaã¯ã©ã®ã‚ˆã†ã«å‹•ãã®ã‹ï½žå›³è§£ã§ã‚ã‹ã‚‹JVMã®ä»•çµ„㿠記事一覧 | gihyo.jp
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From a monolithic Ruby on Rails app to the JVM
This document summarizes a presentation about moving a large Ruby on Rails application to the Java Virtual Machine (JVM). It discusses some of the challenges of scaling Rails, including lack of concurrency and proper garbage collection. It then explores options for using JVM languages like non-Rails Ruby, Scala, and Clojure. The presentation advocates trying a microservices approach using these la
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ãªã‚“ã§ç¾ä»£ã®ä¸»æµãª VM (JVM/CLR) ã¯ï¼Œã¨ã‚‚ã«ã‚¹ã‚¿ãƒƒã‚¯ãƒžã‚·ãƒ³ãƒ¢ãƒ‡ãƒ«ãªã‚“ã ã‚ã†â€¦ ? ã¨ã„ã†ç–‘å•ãŒç”Ÿã¾ã‚Œã¾ã—ãŸï¼Ž ã‚ã¨ï¼Œãƒœã‚¹ã‹ã‚‰å‡ºãŸï¼ŒJava ã«ç‰¹åŒ–ã—ã¦ã„ã‚‹ JVM 上ã§ï¼ŒæžœãŸã—ã¦åŠ¹çŽ‡ã®è‰¯ã„実装ã¯ã§ãã‚‹ã®ã ã‚ã†ã‹ ? ã¨ã„ã†è³ªå•ã«ã‚‚，明確ã«ç”ãˆã‚‹ã“ã¨ãŒã§ããªãã¦ï¼Œã‚ãŸãµãŸã—ã¦ã—ã¾ã£ãŸã®ã§ï¼Œã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ã¾ã—ãŸï¼Ž 高速ã‹ã¤ç§»æ¤æ€§ã®é«˜ã„ Java Virtual Machine ã®è¨è¨ˆã¨å®Ÿè£… ãªã©ã«ã‚ˆã‚‹ã¨ï¼Œã©ã†ã‚„らスタックマシンã«ã¯ï¼Œ (1) 移æ¤æ€§ã®ç¢ºä¿ãŒå®¹æ˜“ ãã‚‚ãも，多ãã® CPU アーã‚テクãƒãƒ£ã¯ãƒ¬ã‚¸ã‚¹ã‚¿ãƒžã‚·ãƒ³ã§ã‚ã‚‹ãŸã‚，「ãªãœ JVM ã¯ã‚¹ã‚¿ãƒƒã‚¯ã‚¢ãƒ¼ã‚テクãƒãƒ£ãªã®ã‹ ?ã€ã¨ã„ã†ç–‘å•ãŒç”Ÿã¾ã‚Œã‚‹ã“ã¨ã¨ãªã‚‹ï¼Ž 一見スタックアーã‚テクãƒãƒ£ã¯ï¼Œãƒ¬ã‚¸ã‚¹ã‚¿ã‚¢ãƒ¼ã‚テクãƒãƒ£ã¨ã¯å®Ÿè¡Œãƒ¢ãƒ‡ãƒ«ãŒæ ¹æœ¬çš„ã«ç•°ãªã‚‹ãŸã‚，効率的ãªå®Ÿè£…ãŒé›£ã—ã，JIT ãªã©ã®å®Ÿè£…ã‚‚é¢å€’ã«ãªã‚Šãã†ãªã‚¤ãƒ¡ãƒ¼ã‚¸ãŒã‚る． # ス
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The (Clojure) "JVM Slow Startup Time" Myth
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