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ãƒ—ãƒã‚°ãƒ©ãƒ ã®å®Ÿè¡Œæ™‚ã‚¤ãƒ¡ãƒ¼ã‚¸ çªç„¶ã ãŒã€æœ¬ç« ã‚’å§‹ã‚ã‚‹ã«å…ˆç«‹ã¡ã€ãƒ—ãƒã‚°ãƒ©ãƒ å®Ÿè¡Œæ™‚ã®ãƒ¡ãƒ¢ãƒªç©ºé–“ã®çŠ¶æ…‹ã«ã¤ ã„ã¦äºˆç¿’ã‚’ã—ã¦ãŠã“ã†ã¨æ€ã†ã€‚ã“ã®ç« ã§ã¯ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ã®ä½Žãƒ¬ãƒ™ãƒ«ãªéƒ¨åˆ†ã«ã‹ ãªã‚Šè¸ã¿è¾¼ã‚“ã§ã„ãã“ã¨ã«ãªã‚‹ã®ã§ã€ã‚ã‚‰ã‹ã˜ã‚ã‚ã‚‹ç¨‹åº¦ã®çŸ¥è˜ã‚’ä»•å…¥ã‚Œã¦ãŠ ã‹ãªã„ã¨å¤ªåˆ€æ‰“ã¡ã§ããªã„ã®ã ã€‚ãã‚Œã«ã“ã®å¾Œã®ç« ã«ãªã‚Œã°ã„ãšã‚Œå¿…è¦ã«ãªã£ ã¦ãã‚‹ã€‚ã“ã“ã§ä¸€å›žã‚„ã£ã¦ã—ã¾ãˆã°å¾ŒãŒæ¥½ã ã€‚ ã‚»ã‚°ãƒ¡ãƒ³ãƒˆ ä¸€èˆ¬çš„ãªCãƒ—ãƒã‚°ãƒ©ãƒ ã§ã¯ãƒ¡ãƒ¢ãƒªç©ºé–“ã®ä¸ã«ä»¥ä¸‹ã®éƒ¨åˆ†ã‚’æŒã¤ã€‚ ãƒ†ã‚ã‚¹ãƒˆé ˜åŸŸ ã‚¹ã‚¿ãƒ†ã‚£ãƒƒã‚¯å¤‰æ•°ã‚„ã‚°ãƒãƒ¼ãƒãƒ«å¤‰æ•°ã®ç½®å ´ ãƒžã‚·ãƒ³ã‚¹ã‚¿ãƒƒã‚¯ ãƒ’ãƒ¼ãƒ— ãƒ†ã‚ã‚¹ãƒˆé ˜åŸŸã¯ã‚³ãƒ¼ãƒ‰ãŒç½®ã„ã¦ã‚ã‚‹ã¨ã“ã‚ã€‚äºŒç•ªç›®ã¯è¦‹ã¦ã®é€šã‚Šã€‚ãƒžã‚·ãƒ³ã‚¹ã‚¿ãƒƒ ã‚¯ã«ã¯é–¢æ•°ã®å¼•æ•°ã‚„ãƒãƒ¼ã‚«ãƒ«å¤‰æ•°ãŒç©ã¾ã‚Œã‚‹ã€‚ãƒ’ãƒ¼ãƒ—ã¯malloc()ã§å‰²ã‚Šå½“ã¦ã¦ ã‚‚ã‚‰ã†ã¨ã“ã‚ã ã€‚ ä¸‰ã¤ã‚ã®ãƒžã‚·ãƒ³ã‚¹ã‚¿ãƒƒã‚¯ã«ã¤ã„ã¦ã‚‚ã†å°‘ã—è©±ãã†ã€‚ãƒžã‚·ãƒ³ã€Œã‚¹ã‚¿ãƒƒã‚¯ã€ã¨è¨€ã† ãã‚‰ã„ã ã‹ã‚‰å½“ç„¶ã‚¹ã‚¿ãƒƒã‚¯æ§‹é€ ã‚’ã—ã¦ã„ã‚‹ã€‚ã¤ã¾ã‚Š
takuma510 2018/01/10
ruby

gc
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Ruby 2.1.1 GC Tuning - Qiita
Help us understand the probl em. What is going on with this article? Ruby2.1ã§ã¯ã€RGenGCã«ã‚ˆã‚Šã‹ãªã‚Šãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒæ”¹å–„ã•ã‚Œã¦ã„ã‚‹ã€‚ ã¾ãŸã€ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãŒå¢—ãˆã¦ã„ã‚‹ãŒã€ã¾ã¨ã¾ã£ãŸæ—¥æœ¬èªžã®è§£èª¬ãŒç„¡ã‹ã£ãŸã®ã§æ›¸ã„ã¦ã¿ãŸã€‚ é–“é•ã„ãŒã‚ã‚‹å¯èƒ½æ€§ãŒã‚ã‚‹ã®ã§ã€æŒ‡æ‘˜ã¯æ“è¿Žã§ã™ã€‚ RGenGCã¨ã¯ RGenGC(Restricted Generational Garbage Collection)ã«ã¤ã„ã¦ã¯ã€ã¾ãšã¯ã“ã‚Œã‚’èªã‚€ã¹ã— www.atdot.net/~ko1/activities/rubyconf2013-ko1_pub.pdf www.atdot.net/~ko1/activities/2014_rubyconf_ph_pub.pdf Ruby 2.1: RGenGC Â· computer talk by
takuma510 2014/04/20
ruby

gc
ãƒªãƒ³ã‚¯
Java 8ã§PermGenã®OutOfMemoryErrorå•é¡Œã¯è§£æ±ºã•ã‚Œã‚‹ã®ã‹ï¼Ÿ
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¤‰...
takuma510 2013/10/27
java

GC

jvm
ãƒªãƒ³ã‚¯
Rolling Java GC Logs
Rolling Java GC Logs November 05, 2012 - San Francisco, CA If you are running a java process, you probably want to keep track of what the garbage collector is doing. You can access this via jconsole or by logging the gc actions by adding: -Xloggc:gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps which logs to the â€˜gc.logâ€™ file. And for simple cases, that will pro
takuma510 2013/01/16
ãƒãƒ¼ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³

java

gc
ãƒªãƒ³ã‚¯
ã‚¨ãƒ‡ãƒ³ã®åœ’ã§ãŠããŸã“ã¨ - steps to phantasien
æœ‰çµ¦ã‚’é§†ä½¿ã—ä¸€è¶³æ—©ãã‚¯ãƒªã‚¹ãƒžã‚¹ä¼‘æš‡ã«çªå…¥ã€ãƒ’ãƒ£ãƒƒãƒ›ã‚¤ Ingress ã‚„ã‚‹ãœãƒ¼ã¨ æ„æ°—è¾¼ã‚“ã§ã„ãŸçŸ¢å…ˆãƒŽãƒã‚¦ã‚¤ãƒ«ã‚¹ã«ã‚„ã‚‰ã‚Œãƒ€ã‚¦ãƒ³ã—ãŸã€‚ã‹ãªã—ã„ã€‚éŽ®ã¾ã‚Œä¿ºã®èƒƒè¢‹ãƒ»ãƒ»ãƒ» ãã‚“ãªè…¹ç—›æ—¥å’Œã®æ°—æ™´ã‚‰ã—ã¨ã—ã¦ä»Šæ—¥ã¯ Garbage Collection Advent Calendar ã«å‚åŠ ã—ã¦ã¿ã‚‹ã“ã¨ã«ã—ã¾ã—ãŸã€‚ Advent Calendar åˆä½“é¨“ã«ã¤ãã‚ˆãã‚ã‹ã£ã¦ãªã„ã‘ã©å‹æ‰‹ã«å‚åŠ ã—ã¦ã„ã„ã‚“ã§ã™ã‚ˆãï¼Ÿ GC ã¨ã„ã†ã¨ã‚¸ã‚§ãƒãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ«ã ã®ãƒ‘ãƒ©ãƒ¬ãƒ«ã‚³ãƒ³ã‚«ãƒ¬ãƒ³ãƒˆã ã®ã¨ã„ã£ãŸè©±ãŒç›®ç«‹ã¡ãŒã¡ã ã‘ã‚Œã©ã€ ç¾å®Ÿã®å•é¡Œã¨ã„ã†ã‹ãƒ–ãƒ©ã‚¦ã‚¶ã‚’ç›¸æ‰‹ã«ã™ã‚‹ã¨ãã‚Œä»¥å¤–ã®ç´°ã€…ã¨ã—ãŸé¢å€’ãŒç›®ã«ã¤ãã€‚ GC ã¤ãè¨€èªž (JavaScript) ã®ã‚³ãƒ¼ãƒ‰ã¨ C++ ã§æ›¸ã‹ã‚ŒãŸã‚³ãƒ¼ãƒ‰ã¨ã®é€£æºã¯æœ€ãŸã‚‹é¢å€’ã®ï¼‘ã¤ã€‚ ãŸã¨ãˆã° WebKit ã® DOM ã¯ C++ ã§å®Ÿè£…ã•ã‚Œã¦ãŠã‚Šã€ C++ ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¯ JavaScript å‡¦ç†
takuma510 2012/12/20
gc

javascript
ãƒªãƒ³ã‚¯
ã„ã¡ã°ã‚“ã„ã„ã®ã‚’é ¼ã‚€ - GC Advent Calendar - I am Cruby!
Garbage Collection Advent Calendarã®14æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ yaottiã•ã‚“ã®è¨˜äº‹ãŒæ¥½ã—ã‹ã£ãŸã®ã§ã‚‚ã†å°‘ã—é ‘å¼µã‚Šã¾ã™ï¼ ä¸€äººAdvent Calendar [advent-calendar, gc] Garbage Collection Advent Calendar 2012 bit.ly/RoGUCNâ€” tyruã•ã‚“ (@tyru) 12æœˆ 12, 2012 ã²ã¨ã‚Šã§â€¦ã‚„ã‚‹ã¤ã‚‚ã‚Šã¯â€¦ãªã„ã‚“ã§ã™ãŒâ€¦(Â´ï¼›Ï‰ï¼›ï½€)ï½³ï½¯â€¦ ã¿ãªã•ã‚“ã®å‚åŠ ã‚’ãŠã¾ã¡ã—ã¦ãŠã‚Šã¾ã™ã€‚ ã•ã¦ã€HotspotVMã¿ãŸãã€GCã‚’ãŸãã•ãƒ¼ã‚“å®Ÿè£…ã—ã¦ã„ã‚‹ã‚ˆã†ãªå ´åˆã¯ã€ã‚‚ã†ã©ã®GCã‚’é¸ã‚“ã§ã„ã„ã‹ã‚ã‹ã‚‰ãªã„ã§ã™ã‚ˆãã€‚ ã‚‚ã—ã‚‚ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«é©ã—ãŸã‚ˆã•ã’ãªGCã‚’å‹æ‰‹ã«é¸ã‚“ã§ãã‚ŒãŸã‚‰â€¦ï¼ˆã½ã‚ã€œã‚“ï¼‰ã€‚ ãã“ã§æ©Ÿæ¢°å¦ç¿’ã®å‡ºç•ªã§ã™ã‚ˆï¼ Intelligent selection of applicatio
takuma510 2012/12/14
gc

æ©Ÿæ¢°å¦ç¿’
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CRubyã§ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒç”Ÿæˆã•ã‚ŒãŸä½ç½®ã‚’çªãæ¢ã‚ã‚‹ - GC Advent Calendar - I am Cruby!
Garbage Collection Advent Calendarã®1æ—¥ç›®ã®è¨˜äº‹ã§ã™ã€‚ ãŠãã‚‰ãä¸€äººã§ã‘ã£ã“ã†é•·ã„æ—¥æ•°ã‚’æ›¸ãã¨æ€ã†ã®ã§ã€è»½ã„ã‚‚ã®ã‹ã‚‰ãƒœãƒãƒœãƒã¨â€¦ã€‚ ã—ã‹ã‚‚GCã¨ã¯ã‚ã¾ã‚Šé–¢ä¿‚ãªã„ã§ã™ãŒâ€¦ã€‚ ã¨ã‚ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç”Ÿæˆä½ç½®ã‚’èª¿ã¹ãŸã„ã¨ãã€ã©ã†ã™ã‚‹ã®ã‹ã€‚ object_idã‚’1bitå·¦ã‚·ãƒ•ãƒˆã™ã‚‹ã¨ã ã„ãŸã„ãã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®RVALUEã®ã‚¢ãƒ‰ãƒ¬ã‚¹ã«ãªã‚‹ã®ã§ p (hoge.object_id 1).to_s(16) # => fa83a4 ä¸Šè¨˜ã®ã‚ˆã†ã«object_idã‚’å‡ºåŠ›ã™ã‚‹ã‚³ãƒ¼ãƒ‰ã‚’æ··ãœã¦ãŠãã¾ã—ã‚‡ã†ã€‚ ãã®å¾Œã«gdbã§rubyã‚’å‹•ã‹ã—ã¦ã¿ã¾ã™ã€‚ ã“ã®æ™‚ã€GC_DEBUGä»˜ãã§ãƒ“ãƒ«ãƒ‰ã—ãŸrubyãªã‚‰å®Ÿã¯ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¨ãƒ©ã‚¤ãƒ³ãŒã‚ã‹ã‚Šã¾ã™ã€‚ ãƒ‡ãƒãƒƒã‚°ç”¨ã«GC_DEBUGä»˜ãã®rubyãŒãƒ“ãƒ«ãƒ‰ã§ãã‚‹ã‚ˆã†ãªã‚‰ãã†ã—ã¦ã¿ã¾ã—ã‚‡ã†ã€‚ rvmã ã£ãŸã‚‰.rvmrcã«ä»¥ä¸‹ã®è¨å®šã™ã‚‹ã¨ã§ãã‚‹ã‚“ã˜ã‚ƒ
takuma510 2012/12/01
ruby

gc
ãƒªãƒ³ã‚¯
ã€Œãƒ¡ãƒ¢ãƒªãƒ¼ã‚’æ„è˜ã—ã¦ã¿ã‚ˆã†ã€ç¬¬1å›žã€€ãƒ’ãƒ¼ãƒ—ãŒã©ã®ãã‚‰ã„ä½¿ã‚ã‚Œã¦ã„ã‚‹ã‹ã‚’ç†è§£ã™ã‚‹
Javaã®ãƒ¡ãƒ¢ãƒªãƒ¼ã¯ã‚¬ãƒ¼ãƒ™ã‚¸ãƒ»ã‚³ãƒ¬ã‚¯ã‚¿ãŒç®¡ç†ã™ã‚‹ãŸã‚ï¼Œã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³å´ã§ã¯ãã‚Œã»ã©æ°—ã«ã™ã‚‹ã‚ã‚Šã¾ã›ã‚“ã€‚ã—ã‹ã—ï¼Œå…¨ãæ°—ã«ã—ãªã„ã‚ã‘ã«ã¯ã„ã‹ãªã„ã®ã‚‚å®Ÿæƒ…ã§ã™ã€‚ å°ã•ã„ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§ã¯ç„¡é “ç€ã§ã‚ã£ã¦ã‚‚æ§‹ã„ã¾ã›ã‚“ãŒï¼Œå¤§è¦æ¨¡ã«ãªã‚Œã°ãã†ã‚‚ã„ã£ã¦ã¯ã„ã‚‰ã‚Œã¾ã›ã‚“ã€‚ä½¿ç”¨ãƒ¡ãƒ¢ãƒªãƒ¼é‡ï¼Œã‚¬ãƒ¼ãƒ™ã‚¸ãƒ»ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ï¼ˆGCï¼‰ã®é »åº¦ï¼Œãƒªãƒ¼ã‚¯ã®æœ‰ç„¡ãªã©ã¯ï¼Œã§ãã‚Œã°ãƒã‚§ãƒƒã‚¯ã—ã¦ãŠããŸã„é …ç›®ã§ã™ã€‚ Javaã§ã¯ãƒ¡ãƒ¢ãƒªãƒ¼ã‚’è¤‡æ•°ã®é ˜åŸŸã«åˆ†å‰²ã—ã¦ç®¡ç†ã—ã¦ã„ã¾ã™ã€‚ã‚¯ãƒ©ã‚¹å®šç¾©ã‚„ãƒ¡ã‚½ãƒƒãƒ‰ãªã©ã®ãƒ‡ãƒ¼ã‚¿ãŒæ ¼ç´ã•ã‚Œã‚‹Permanenté ˜åŸŸã‚„ï¼Œã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãŒå‰²ã‚Šå½“ã¦ã‚‰ã‚Œã‚‹ãƒ’ãƒ¼ãƒ—ãªã©ãŒã‚ã‚Šã¾ã™ã€‚ã“ã®ã‚ˆã†ãªé ˜åŸŸãŒã©ã®ã‚ˆã†ã«ä½¿ç”¨ã•ã‚Œã¦ã„ã‚‹ã‹ã‚’çŸ¥ã‚‹ã“ã¨ã¯ï¼Œãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’è€ƒãˆã‚‹ã†ãˆã§ã‚‚ã¨ã¦ã‚‚é‡è¦ã«ãªã‚Šã¾ã™ã€‚ ã“ã“ã§ã¯ï¼Œç‰¹ã«ãƒ’ãƒ¼ãƒ—ã«ç€ç›®ã—ã¦ã„ããŸã„ã¨æ€ã„ã¾ã™ã€‚ ãƒ’ãƒ¼ãƒ—ã®ä½¿ç”¨é‡ã‚’çŸ¥ã‚‹ ã¾ãšã¯ãƒ’ãƒ¼ãƒ—ã®ä½¿ç”¨é‡ãŒã©ã®ãã‚‰ã„ã«ãªã£ã¦ã„ã‚‹ã‹ã‚’èª¿ã¹ã¦ã¿ã¾ã—ã‚‡ã†ã€‚
takuma510 2012/11/27
java

gc

jvm
ãƒªãƒ³ã‚¯
â€œStop the Worldâ€ã‚’é˜²ãã‚³ãƒ³ã‚«ãƒ¬ãƒ³ãƒˆGCã¨ã¯ï¼Ÿ (1/2) - ï¼ IT
â€œStop the Worldâ€ã‚’é˜²ãã‚³ãƒ³ã‚«ãƒ¬ãƒ³ãƒˆGCã¨ã¯ï¼Ÿï¼šç¾å ´ã‹ã‚‰å¦ã¶Webã‚¢ãƒ—ãƒªé–‹ç™ºã®ãƒˆãƒ©ãƒ–ãƒ«ãƒãƒƒã‚¯ï¼ˆ2ï¼‰ï¼ˆ1/2 ãƒšãƒ¼ã‚¸ï¼‰ æœ¬é€£è¼‰ã¯ã€ç¾å ´ã§ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®çµŒé¨“ã‹ã‚‰å¾—ã‚‰ã‚ŒãŸã€APã‚µãƒ¼ãƒã‚’ãƒ™ãƒ¼ã‚¹ã¨ã—ãŸWebã‚¢ãƒ—ãƒªé–‹ç™ºã«ãŠã‘ã‚‹æ³¨æ„ç‚¹ã‚„ãƒŽã‚¦ãƒã‚¦ã«ã¤ã„ã¦è§£èª¬ã™ã‚‹ãƒãƒƒã‚¯é›†ã§ã‚ã‚‹ã€‚ç¾åœ¨èµ·ãã¦ã„ã‚‹ãƒˆãƒ©ãƒ–ãƒ«ã®è§£æ±ºã‚„ã€ä»Šå¾Œã®é–‹ç™ºã®å‚è€ƒã¨ã—ã¦å¤§ã„ã«æ´»ç”¨ã—ã¦ã„ãŸã ããŸã„ã€‚ï¼ˆç·¨é›†éƒ¨ï¼‰ Full GCå•é¡Œã®æ™‚ä»£ãŒå†ã³åˆ°æ¥ï¼ ãã‚Œã¾ã§é †èª¿ã«å‹•ã„ã¦ã„ãŸã¯ãšã®Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒã€ã‚ã‚‹æ™‚çªç„¶ã€å¿œç”ã‚’è¿”ã•ãªããªã‚‹ã€‚ãã—ã¦ã€é‹ç”¨è€…ãŒã‚ãŸãµãŸã—ã¦ã„ã‚‹é–“ã«ã€ä½•äº‹ã‚‚ãªã‹ã£ãŸã‹ã®ã‚ˆã†ã«å†ã³å‹•ãå‡ºã™ã€‚ Javaã§æ§‹ç¯‰ã—ãŸã‚·ã‚¹ãƒ†ãƒ ã«ã‹ã‹ã‚ã‚‹è€…ãªã‚‰ã°èª°ã—ã‚‚ãŒä½“é¨“ã™ã‚‹ã§ã‚ã‚ã†äº‹è±¡ã€ãã†Full GCï¼ˆã‚¬ãƒ™ãƒ¼ã‚¸ãƒ»ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ï¼‰ã ã€‚Full GCãŒè¡Œã‚ã‚Œã¦ã„ã‚‹é–“ã€ã™ã¹ã¦ã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚¹ãƒ¬ãƒƒãƒ‰ã¯åœæ¢ã™ã‚‹ã€‚ã“ã®äº‹è±¡ã¯â€œStop the
takuma510 2012/11/26
JVM

java

gc
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takuma510 2012/11/22
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takuma510 2012/11/08
java

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takuma510 2012/11/08
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takuma510 2012/11/08
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takuma510 2012/11/07
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takuma510 2012/11/07
JVM

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