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GCã«é–¢ã™ã‚‹pochi-mkã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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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‚’
pochi-mk 2015/04/15
rails4

rails

activerecord

gc

æ€§èƒ½

performance

ruby
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JVM! JVM! JVM!
10. jmc Java Mission Control â— ãƒ¡ãƒ¢ãƒªçµ±è¨ˆã€ã‚¹ãƒ¬ãƒƒãƒ‰æ•°ã€ã‚¯ãƒ©ã‚¹æ•°ã‚’ã‚°ãƒ©ãƒ•ã‚£ã‚«ãƒ«ã«è¡¨ ç¤º â— jconsoleã¨ä¼¼ãŸã‚ˆã†ãªæ„Ÿã˜ã ã‘ã©jmcã®æ–¹ãŒãªã†ã„ï¼Ÿ â— ãƒ€ãƒƒã‚·ãƒ¥ãƒœãƒ¼ãƒ‰ã®ã‚«ã‚¹ã‚¿ãƒžã‚¤ã‚ºï¼ˆã‚°ãƒ©ãƒ•ã®è¿½åŠ ï¼‰ãŒå¯èƒ½ â— Flight Recorderã¨ã„ã†ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒªãƒ³ã‚°ãƒ„ãƒ¼ãƒ«ãŒã‚ ã‚‹ã€‚ãŒå•†ç”¨ãƒ©ã‚¤ã‚»ãƒ³ã‚¹ãŒå¿…è¦ï¼ˆã‚‰ã—ã„ â— -XX:+UnlockCommercialFeatures -XX:+FlightRecorder â— Eclipseãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã¨ã—ã¦ã‚‚åˆ©ç”¨ã§ãã‚‹ï¼ˆã‚‰ã—ã„
pochi-mk 2014/06/14
JVM

gc

visualization

monitoring

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ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆãªCRubyã‚’ç›®æŒ‡ã—ã¦ - 1è¡Œã®ãƒã‚°ä¿®æ£ã«æ½œã‚€è‹¦åŠ´ - - I am Cruby!
ã“ã®è¨˜äº‹ã¯ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby Advent Calendar 2013 - Adventar ã®9æ—¥ç›®ã§ã™ã€‚ å‰ã®æ—¥ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã¯ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby Advent Calendar 2013(8æ—¥ç›®) Let's Sinatra Life - ãŸã¡ãƒ–ãƒã‚°ã§ã™ã€‚ ã¾ã å‚åŠ ã§ãã¾ã™ã®ã§ã€ã¿ãªã•ã¾ã‚‚ãœã²ã€‚ ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby Advent Calendar 2013 - Adventar ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby Rubyã®ä»•æ§˜ã«å¤§å¤‰è©³ã—ã„åŒåƒšã¸ã®çŒ®æœ¬ã‚’ã‚¤ãƒ³ã‚¿ãƒ¼ã‚»ãƒ—ãƒˆã—ã¦èªã¾ã›ã¦ã„ãŸã ãã¾ã—ãŸã€‚ ã•ã¾ã–ã¾ãªæ©Ÿèƒ½ã‚’ã¾ã¨ã‚ãŸã¨ã¦ã‚‚ã‚ˆã„æœ¬ã ã¨æ€ã„ã¾ã™ã€‚ è‘—è€…ã®ã¿ãªã•ã¾ã®è‹¦åŠ´ãŒå²ã°ã‚Œã¾ã—ãŸã€‚ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby (PERFECT SERIES 6)ä½œè€…: Rubyã‚µãƒãƒ¼ã‚¿ãƒ¼ã‚º,ã™ãŒã‚ã‚‰ã¾ã•ã®ã‚Š,å¯ºç”°çŽ„å¤ªéƒŽ,ä¸‰æ‘ç›Šéš†,è¿‘è—¤å®‡æ™ºæœ—,æ©‹ç«‹å‹å®,é–¢å£äº®ä¸€å‡ºç‰ˆç¤¾/ãƒ¡ãƒ¼ã‚«ãƒ¼: æŠ€è¡“è©•è«–ç¤¾ç™ºå£²æ—¥: 2013/08/1
pochi-mk 2013/12/09
ruby

gc

Debug

gdb

Advent Calendar

adventcalendar
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Rubyã¨Pythonã®é•ã„ã‹ã‚‰ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã‚’ç†è§£ã™ã‚‹ - ãƒ¯ã‚¶ãƒŽãƒ | wazanova.jp
http://patshaughnessy.net/2013/10/24/visualizing-garbage-collection-in-ruby-and-python Pat ShaughnessyãŒã€ãƒ–ã‚¿ãƒšã‚¹ãƒˆã§é–‹å‚¬ã•ã‚ŒãŸRUPY2013ã§ã®ãƒ—ãƒ¬ã‚¼ãƒ³ã®å‰åŠã‚’è‡ªã‚‰ã®ãƒ–ãƒã‚°ã§ç´¹ä»‹ã—ã¦ã„ã¾ã™ã€‚ ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã¯ã€ã€Œã‚´ãƒŸã‚’é›†ã‚ã‚‹ã€ã¨ã„ã†è¡Œç‚ºã ã‘ã§ãªãã€ã€Œæ–°ã—ã„ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ãŸã‚ã«ãƒ¡ãƒ¢ãƒªã‚’ã‚ã¦ãŒã†ã€‚ã€ã€Œä¸è¦ãªã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’è¦‹ã¤ã‘ã‚‹ã€ã€Œä¸è¦ãªã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‹ã‚‰ãƒ¡ãƒ¢ãƒªã‚’å–ã‚Šæˆ»ã™ã€‚ã€ã¨ã„ã†ã€äººé–“ã®å¿ƒè‡“ãŒè¡€æ¶²ã‚’æµ„åŒ–ã™ã‚‹ã‚ˆã†ãªåƒãã‚’ã—ã¦ã„ã‚‹ã€‚ ã“ã®ç°¡å˜ãªã‚³ãƒ¼ãƒ‰ã‚µãƒ³ãƒ—ãƒ«ã‚’è¦‹ã‚‹ã¨ã€Rubyã¨Pythonã®è¨˜è¿°ã¯ã‚ˆãä¼¼ã¦ã„ã‚‹ãŒã€ãã‚Œãžã‚Œã®è¨€èªžã®å†…éƒ¨ã§ã®ã‚¤ãƒ³ãƒ—ãƒªã®ä»•çµ„ã¿ã¯é•ã†ã€‚ 1) Rubyã®ãƒ¡ãƒ¢ãƒª Rubyã¯ã€ã‚³ãƒ¼ãƒ‰ãŒå®Ÿè¡Œã•ã‚Œã‚‹å‰ã«ã€æ•°åƒã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’å…ˆã«ã¤ãã‚Šã€ãã‚Œã‚’ãƒªãƒ³ã‚¯ã•ã‚ŒãŸfree listã«ç½®
pochi-mk 2013/10/28
ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

ruby

python

ãƒ¡ãƒ¢ãƒª

GC
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Javaã§ãƒ’ãƒ¼ãƒ—é ˜åŸŸã‚’ä½™ã‚‰ã›ãŸã¾ã¾OutOfMemoryErrorã‚’å‡ºã™æ–¹æ³• - è¥¿å°¾æ³°å’Œã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
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pochi-mk 2013/03/24
ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

OutOfMemoryError

GC

JVM

classloader

Java
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ã‚¨ãƒ‡ãƒ³ã®åœ’ã§ãŠããŸã“ã¨ - steps to phantasien
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pochi-mk 2012/12/20
programming

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

gc

c++

JavaScript
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