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Sparkã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãŸã‚ã®Javaã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã®ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã«ã¤ã„ã¦ - TEPPEI STUDIO
ã“ã®è¨˜äº‹ã¯ã€ã‚¤ãƒ³ãƒ†ãƒ«ã® SSG STOãƒ“ãƒƒã‚°ãƒ‡ãƒ¼ã‚¿ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã‚°ãƒ«ãƒ¼ãƒ—ã®ãƒ¡ãƒ³ãƒãƒ¼ã‹ã‚‰DataBricksã«å¯„ç¨¿ã•ã‚ŒãŸãƒ–ãƒã‚°ã‚’ç¿»è¨³ã—ãŸã‚‚ã®ã§ã™ã€‚èª¤è¨³ãŒã‚ã‚Šã¾ã—ãŸã‚‰ã€@teppei_tosaã«å¾¡é€£çµ¡ãã ã•ã„ã€‚ Sparkã¯ã€ãã®å„ªã‚ŒãŸæ€§èƒ½ã€ã‚·ãƒ³ãƒ—ãƒ«ãªã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã€ãŠã‚ˆã³åˆ†æžã‚„è¨ˆç®—ã®ãŸã‚ã®è±Šå¯Œãªãƒ©ã‚¤ãƒ–ãƒ©ãƒªã«ã‚ˆã£ã¦ã€å¹…åºƒã„æ¥ç•Œã§æŽ¡ç”¨ã•ã‚Œã¦ãã¦ã„ã¾ã™ã€‚ãƒ“ãƒƒã‚°ãƒ‡ãƒ¼ã‚¿ã‚¨ã‚³ã‚·ã‚¹ãƒ†ãƒ ã«ãŠã‘ã‚‹å¤šãã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¨åŒæ§˜ã«ã€Sparkã¯ã€Javaä»®æƒ³ãƒžã‚·ãƒ³ï¼ˆJVMï¼‰ä¸Šã§å®Ÿè¡Œã•ã‚Œã¾ã™ã€‚Sparkã¯ãƒ¡ãƒ¢ãƒªã«å¤§é‡ã®ãƒ‡ãƒ¼ã‚¿ã‚’æ ¼ç´ã™ã‚‹ã“ã¨ã«ãŠã„ã¦ã€Javaã®ãƒ¡ãƒ¢ãƒªç®¡ç†ã¨ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ï¼ˆGCï¼‰ã«å¤§ããé ¼ã£ã¦ã„ã¾ã™ã€‚ã¾ãŸã€ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆTungstenãªã©ã®æ–°ãŸãªå–ã‚Šçµ„ã¿ã¯ã€å°†æ¥ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã€ãƒ¡ãƒ¢ãƒªç®¡ç†ã®ã•ã‚‰ãªã‚‹ç°¡ç´ åŒ–ã¨æœ€é©åŒ–ã‚’ç›®æŒ‡ã—ã¦ã„ã¾ã™ã€‚ã—ã‹ã—ã€ä»Šæ—¥æ™‚ç‚¹ã§ã‚‚ã€Javaã®GCã‚ªãƒ—ã‚·ãƒ§ãƒ³ã¨ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã‚’ç†è§£ã—ã¦ã„ã‚‹ãƒ¦
learn 2019/06/09
jvm

GC

G1GC

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https://blogs.oracle.com/poonam/understanding-g1-gc-logs
learn 2014/08/31
jvm

GC

G1GC
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Understanding Memory Management of JavaVMâ€¨ in 15 minutes
ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãƒªãƒ³ã‚°ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£é“å ´ on AWS & EKS Kubernetes / Platform Engineering Architecture Dojo
learn 2014/04/08
jvm

GC

G1GC

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G1GCã®ã¤ã‹ã„ã©ã“ã‚ãƒ¡ãƒ¢ - nekop's blog
ä»¥ä¸‹ã®ç’°å¢ƒã¨ãƒ†ã‚¹ãƒˆã§CMSã¨G1GCã‚’æ¯”è¼ƒã—ã¦ã¿ãŸã€‚ã‹ãªã‚Šæ€¥ãŽã§ã‚„ã£ãŸã®ã§é–“é•ã£ã¦ã„ã‚‹å¯èƒ½æ€§ãŒå¤šå°‘ã‚ã‚‹ã€‚ 16 cores, 32GB mem -Xms24g -Xmx24g 8 instances Infinispan 6.0.3.Final DIST cache, put 4GB data (1KB entry * 2M, 2GB data with one backup copy, 2GB * 2 = 4GB) CMS: -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=30 G1GC: -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:InitiatingHeapOccupancyPercent=30 $ java -XX:+UseG1GC -XX:+PrintFlagsFinal
learn 2014/04/08
G1GC

jvm

GC
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Garbage First Garbage Collector (G1 GC) - Migration to, Expectations and Advanced Tuning
Learn what you need to know to experience nirvana in the evaluation of G1 GC even if your are migrating from Parallel GC to G1, or CMS GC to G1 GC You also get a walk through of some case study data G1 GCRead less
learn 2014/03/28
java

jvm

GC

G1GC

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Getting Started with the G1 Garbage Collector
Purpose This tutorial covers the basics of how to use the G1 garbage collector and how it can be used with the Hotspot JVM. You will learn how the G1 collector functions internally, the key command line switches for using G1, and options for logging its operation. Time to Complete Approximately 1 hour Introduction This OBE covers the basics of Java Virtual Machine(JVM) G1 Garbage Collection (GC) i
learn 2013/01/07
G1GC

jvm

GC
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