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Makots id:Makots

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JVMä¸Šã§å‹•ãWebã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒãƒªã‚½ãƒ¼ã‚¹ã‚’é£Ÿã„ã¤ã¶ã™åŽŸå› ã‚’æŽ¢ã‚‹ãŸã‚ã«ã‚„ã£ãŸã“ã¨ã€Backlog PlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã€‘
ãƒŒãƒ¼ãƒ©ãƒœã§Scalaã‚’æ›¸ãRubyistã®è°·æœ¬ã§ã™ã€‚ãƒŒãƒ¼ãƒ©ãƒœã§ã¯ã€Backlogã®é–‹ç™ºã‚’æ‹…å½“ã—ã¦ãŠã‚Šã€æœ€è¿‘ã§ã¯Backlogã‚’Javaã‹ã‚‰Scala / Play Frameworkã«ç§»è¡Œã™ã‚‹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®ãƒ¡ãƒ³ãƒãƒ¼ã§ã—ãŸã€‚ Backlogã®PlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯ã€OutOfMemorryError(ä»¥ä¸‹ã€OOM)ã®ç™ºç”Ÿã‚„CPUä½¿ç”¨çŽ‡ã¨ãƒãƒ¼ãƒ‰ã‚¢ãƒ™ãƒ¬ãƒ¼ã‚¸ãŒä¸ŠãŒã£ãŸã¾ã¾ã¨ã„ã†ã€Java Virtual Machineï¼ˆä»¥ä¸‹ã€JVMï¼‰ä¸Šã§å‹•ãBacklogã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã«é–¢ã™ã‚‹å•é¡Œã«å¯¾å‡¦ã™ã¹ãã€ä½•åº¦ã‹Heap/Thread dumpã‚’è¦‹ã‚‹æ©Ÿä¼šãŒã‚ã‚Šã¾ã—ãŸã€‚ ç§ãŒPlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§å–ã‚Šçµ„ã‚“ã ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ã®çŸ¥è¦‹ã‚„çµŒé¨“ã‚’ã‚‚ã¨ã«ã€æœ¬è¨˜äº‹ã§ã¯ã€ŒJVMã§èµ·ã“ã£ãŸãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®å•é¡Œã®åˆ‡ã‚Šåˆ†ã‘æ–¹ã€ã«ã¤ã„ã¦ãŠå±Šã‘ã—ã¾ã™ã€‚ ã¯ã˜ã‚ã« æœ¬ç•ªç’°å¢ƒã§ã—ã°ã‚‰ãå‹•ã‹ã—ã¦ã„ã‚‹ã¨ã€ã‚³ãƒ¼ãƒ‰è‡ªä½“ã¯æ£ã—ãå®Ÿè¡Œã§ãã‚‹ã‘
Makots 2019/10/23
java

scala

performance

gc
ãƒªãƒ³ã‚¯
Chromeã®ãªã‹ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ»ã‚µã‚¤ã‚¨ãƒ³ã‚¹
Chromeã®ãªã‹ã® ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ»ã‚µã‚¤ã‚¨ãƒ³ã‚¹ * haraken@chromium.org 2015 Sep *
Makots 2015/09/15
chrome

google

gc

slides
ãƒªãƒ³ã‚¯
ActiveRecordã‚’é€Ÿãã—ãŸã„ã ã‘ã®äººç”Ÿã ã£ãŸ - Qiita
Help us understand the probl em. What is going on with this article? Rails3.2ã‹ã‚‰Rails4.2ã«ä¸Šã’ãŸã‚‰ActiveRecordãŒé…ããªã£ãŸã®ã§ã€ã©ã†ã‚„ã£ã¦èª¿æŸ»ã—ã¦ã€ã©ã®ã‚ˆã†ã«å¯¾å‡¦ã—ãŸã‹ã‚’èªžã£ã¦ã¿ãŸã„ã€‚ ã¨ã¦ã‚‚é•·ã„ã®ã§ã€ãƒ€ãƒ«ã„äººã¯æœ€åˆã¨æœ€å¾Œã ã‘èªã‚ã°ã‚ˆã„ã§ã™ã€‚ TL;DR ç’°å¢ƒ: Ruby 2.1.5 ARã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’å¤§é‡ã«(ã–ã£ãã‚Š750kãã‚‰ã„)loadã™ã‚‹ãƒãƒƒãƒå‡¦ç† 3.2ç³»ã§ã®å®Ÿè¡Œæ™‚é–“ã¯ç´„480secã€ 4.2ç³»ã§ã¯ç´„2900sec ç´„6å€ã®æ€§èƒ½åŠ£åŒ– åŽŸå› : preloadã§æ€§èƒ½åŠ£åŒ–ã—ã¦ãŸ CollectionProxyã®ç”Ÿæˆå‘¨ã‚Šã§é…ããªã£ã¦ãŸ Rails4ã‹ã‚‰ARã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®1attributeæ¯Žã«Objectç”Ÿæˆã™ã‚‹ã®ã§é…ã„ GCã®æ™‚é–“ã‚‚å¢—ãˆãŸ èª¿æŸ»æ–¹æ³•: Githubã®commitã€Issueã‚’
Makots 2015/04/15
activerecord

rails

ruby

gc

performance

dev
ãƒªãƒ³ã‚¯
Effectively managing memory at Gmail scale Â |Â Articles Â |Â web.dev
Effectively managing memory at Gmail scale Stay organized with collections Save and categorize content based on your preferences. Introduction While JavaScript employs garbage collection for automatic memory management, it is not a substitute for effective memory management in applications. JavaScript applications suffer from the same memory related probl ems that native applications do, such as me
Makots 2013/12/15
google

gmail

performance

gc

optimization

javascript
ãƒªãƒ³ã‚¯
[ãã®1] Ruby 2.0ã®ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã‚’ä½¿ã„ã“ãªã™ - ãƒ¯ã‚¶ãƒŽãƒ | wazanova
http://samsaffron.com/archive/2013/11/22/demystifying-the-ruby-gc Ruby 2.1ã®ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ (GC) ã«ã¤ã„ã¦ã¯ã€ã€ŒRubyã¨Pythonã®é•ã„ã‹ã‚‰ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã‚’ç†è§£ã™ã‚‹ [ãã®1] [ãã®2] ã€ã§å–ã‚Šä¸Šã’ã¾ã—ãŸãŒã€ä»Šå›žã¯ã€Discourseã®Sam SaffronãŒã¾ã¨ã‚ã¦ã„ã‚‹Ruby 2.0ã®GCã‚’åˆ©ç”¨ã™ã‚‹ã«ã‚ãŸã£ã¦ã®å¦ã³ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ 1) Heaps of heaps MRIã¯ãƒ’ãƒ¼ãƒ—ã«RVALUEã¨ã—ã¦çŸ¥ã‚‰ã‚Œã¦ã„ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã‚‚ã¤ã€‚å„ãƒ’ãƒ¼ãƒ—ã¯ç´„16KBã€‚RVALUEæ§‹é€ ä½“ã¯ã€ãƒžã‚·ãƒ³ã®ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã«ã‚ˆã£ã¦ç•°ãªã‚‹é‡ã®ãƒ¡ãƒ¢ãƒªã‚’æ¶ˆè²»ã™ã‚‹ã€‚x64ãƒžã‚·ãƒ³ã§ã¯40 byteã€x32ãƒžã‚·ãƒ³ã§ã¯ã‚µãƒ–ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ãƒ¼æ¬¡ç¬¬ã§20 byteã‹ã‚‰24 byteã€‚RVALUEã¯ãƒžã‚¸ã‚«ãƒ«ãªCæ§‹é€ ä½“ã§ã€Rubyã®æ§˜ã€…ãªãƒãƒ¼ãƒ¬ãƒ™ãƒ«
Makots 2013/12/10
ruby

gc
ãƒªãƒ³ã‚¯
Javaã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒ æ§‹ç¯‰ãƒ»é‹ç”¨ã®å‹˜æ‰€
Javaã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒã®æ´å²ã¯ãã‚Œãªã‚Šã«é•·ã„ã§ã™ãŒã€æ®‹å¿µãªãŒã‚‰é‹ç”¨æ™‚ã®ãƒˆãƒ©ãƒ–ãƒ«ã¯å¾Œã‚’çµ¶ã¡ã¾ã›ã‚“ã€‚ ãƒˆãƒ©ãƒ–ãƒ«ã‚’èµ·ã“ã—ã«ãã„ãƒ»èµ·ãã¦ã‚‚è§£æ±ºã—ã‚„ã™ãã™ã‚‹ã«ã¯ã©ã†ã™ã¹ãã‹ã€ã“ã‚Œã ã‘ã¯æŠ¼ã•ãˆã¦ãŠããŸã„æ§‹ç¯‰ãƒ»é‹ç”¨æ™‚ã®ãƒã‚¤ãƒ³ãƒˆã‚’ç´¹ä»‹ã—ã¾ã™ã€‚Read less
Makots 2013/11/11
Java

gc
ãƒªãƒ³ã‚¯
ç¬¬5ç« ã‚¬ï¼ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³
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
Makots 2013/06/15
gc

ruby
ãƒªãƒ³ã‚¯
é€£è¼‰: IBM Watson Workspace #é¬¼ã‚ã‹ ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³é–‹ç™º: ç¬¬ 7 å›ž: IBM Watson Workspace ã§ AI ã‚’åˆ©ç”¨ã—ãŸã‚¢ãƒ—ãƒªé€£æºã®å®Ÿç¾ #é¬¼ã‚ã‹ è§£èª¬ï¼ˆå‰ç·¨ï¼‰
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
Makots 2012/12/08
javascript

programming

debug

gc
ãƒªãƒ³ã‚¯
ä¾‹ãˆã° GC ã‚’æ¢ã‚ã‚‹ãƒ»Ruby ã‚¦ã‚§ãƒ–ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®é«˜é€ŸåŒ– - 2nd life (ç§»è»¢ã—ã¾ã—ãŸ)
æœ€è¿‘ã‚¯ãƒƒã‚¯ãƒ‘ãƒƒãƒ‰ã§ã¯ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒã®å¤§åŠãŒ Rails 2.3 ã‹ã‚‰ Rails 3 ã«ç½®ãæ›ã‚ã£ãŸã®ã§ã™ãŒ*1ã€ãƒªãƒªãƒ¼ã‚¹å‰ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã®æ™‚ç‚¹ã§ã¯ã‚ã¾ã‚Šãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒå‡ºãšå››è‹¦å…«è‹¦ã—ã¦ã„ã¾ã—ãŸã€‚å…·ä½“çš„ã«ã¯ Rails 2.3 ã®æ™‚ã¨æ¯”ã¹ MRI 1.8.7 ã ã¨ãƒ¬ã‚¹ãƒãƒ³ã‚¹ã‚¿ãƒ ãŒ200%ãã‚‰ã„é…ã„çµæžœã§ã—ãŸã€‚Rails 3 ã«ãªã£ã¦å®Ÿè£…ãŒ Merb core ã‚’å–ã‚Šå…¥ã‚Œç–Žçµåˆã§ç¶ºéº—ã«ãªã£ãŸåé¢ã€ã‚ˆã‚Šå¤šãã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¨ãƒ»ãƒ¡ãƒ¢ãƒªã‚’åˆ©ç”¨ã™ã‚‹æ§˜ã«ãªã£ãŸå½±éŸ¿ã‹ã¨æ€ã„ã¾ã™ã€‚ ãã“ã§ Ruby ã‚¤ãƒ³ã‚¿ãƒ—ãƒªã‚¿ã®å¤‰æ›´*2ã‚’è¡Œã„æ¤œè¨¼ã‚’ã—ãŸã¨ã“ã‚ MRI 1.8.7 (Rails 2.3ã¨æ¯”ã¹) ç´„200%é…ã„ MRI 1.8.7 -> Ruby Enterprise Edition 1.8.7 2011.03 (tcmalloc ç„¡åŠ¹) ç´„180%ä½Žé€Ÿ MRI 1.8.7 -> Ruby Ente
Makots 2011/10/07
ruby

gc

performance

tuning

rails
ãƒªãƒ³ã‚¯
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8 ï¼š ä½œæ¥ç™‚æ³•å£«(ã‚¢ãƒ©ãƒãƒžå·ž)ï¼š2010/09/11(åœŸ) 03:10:57.87 ID:8xjAtJhPP ãƒ¬ãƒ™ãƒ«ã®é«˜ã„è‹±èªžãŒã§ãã‚‹ã‹ã©ã†ã‹ ã“ã‚Œæ¬¡ç¬¬ 6 ï¼š ãŸã„ç„¼ã(catv?)ï¼š2010/09/11(åœŸ) 03:10:36.31 ID:qT3+Qel3Q æµ·å¤–ã«å‡ºãŸã£ã¦ä¸€ç”Ÿã‚ˆãè€…æ‰±ã„ã¯è¾›ã„ 9 ï¼š ä½œæ¥ç™‚æ³•å£«(ã‚¢ãƒ©ãƒãƒžå·ž)ï¼š2010/09/11(åœŸ) 03:11:42.32 ID:8xjAtJhPP >>6 ç§»æ°‘ã¨ã—ã¦ä½ã‚€ãªã‚‰ã‚¬ãƒã§ã‚ãƒ„ã„ 51 ï¼š è·¯é¢æ¨™ç¤ºæ–½å·¥æŠ€èƒ½å£«(å…µåº«çœŒ)ï¼š2010/09/11(åœŸ) 03:43:06.50 ID:oizKubv30 æ£ç›´æ—¥æœ¬ä»¥å¤–ã¯é£¯ãŒä¸å‘³ã™ãŽã¦ã„ãã‚‰ä»–ã®éƒ¨åˆ†ãŒè‰¯ãã¦ã‚‚ç§»ä½ã™ã‚‹æ°—ã«ãªã‚‰ã‚“ 399 ï¼š èŠ¸è¡“å®¶(å…µåº«çœŒ)ï¼š2010/09/11(åœŸ) 10:19:11.83 ID:4Y46vJeb0 æ°¸ä½æ¨©ã‚’å–ã‚ã†ã¨æ€ã£ãŸã‚‰ ãŸã„ãŒã„ä½•ã®ä»•äº‹ã‚’ã—ã¦
Makots 2010/09/12
æ—¥æœ¬

gc

overseas

recruit
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gcbook, gcai, GCGCLoverã®ã¿ãªã•ã‚“ã€ãŠå¾…ãŸã›ã—ã¾ã—ãŸã€‚ã€Œã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨å®Ÿè£…ã€ã®æƒ…å ±å…¬é–‹ã§ã™ã€‚ æ›¸åï¼šã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã¨å®Ÿè£… è‘—è€…ï¼šä¸æ‘ã€€æˆæ´‹ï¼ç›¸å·ã€€å…‰ ç›£ä¿®ï¼šç«¹å†…ã€€éƒé›„ ãƒšãƒ¼ã‚¸æ•°ï¼š472ãƒšãƒ¼ã‚¸ æœ¬ä½“ä¾¡æ ¼ï¼š3,200å†† ç™ºå£²é–‹å§‹æ—¥ï¼š2010å¹´3æœˆ17æ—¥ï¼ˆæ°´ï¼‰ â€»åœ°åŸŸãƒ»æ›¸åº—ã«ã‚ˆã£ã¦é…ã‚Œã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ ISBNï¼š978-4-7980-2562-9 C3055 èªã¿æ‰€ æœ¬æ›¸ã¯æ¬¡ã®2ã¤ã®ãƒ†ãƒ¼ãƒžã‚’æ‰±ã„ã¾ã™ã€‚ 1.GCã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ï¼ˆã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ç·¨ï¼‰ 2.GCã®å®Ÿè£…ï¼ˆå®Ÿè£…ç·¨ï¼‰ ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ç·¨ã§ã¯ã€ã“ã‚Œã¾ã§ã«è€ƒæ¡ˆã•ã‚Œã¦ããŸæ•°å¤šãã®GCã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã®ä¸ ã‹ã‚‰ã€é‡è¦ãªã‚‚ã®ã‚’åŽ³é¸ã—ã¦ç´¹ä»‹ã—ã¾ã™ã€‚ä¼çµ±çš„ã‹ã¤åŸºæœ¬çš„ãªã‚‚ã®ã‹ã‚‰ã€ã‚„ã‚„ é«˜åº¦ãªã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã‚’é¸å®šã—ã¦ã„ã¾ã™ã€‚GCç‹¬ç‰¹ã®è€ƒãˆæ–¹ã‚„å„ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã®ç‰¹ æ€§ãªã©ã‚’ç†è§£ã—ã¦ã„ãŸã ãã®ãŒã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ç·¨ã®æœ€å¤§
Makots 2010/03/04
gc

algorithm
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