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gcã«é–¢ã™ã‚‹j5ik2oã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (16)

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Garbage Collectionã«ã¤ã„ã¦ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ãŸ - wyukawa's diary
HBaseã®Juliet Pauseã‚’ãã£ã‹ã‘ã«ã—ã¦Garbage Collection(ä»¥ä¸‹GC)ã«ã¤ã„ã¦ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ãã†ã„ãˆã°é•·å¹´Javaã§ãŠä»•äº‹ã—ã¦ã„ã‚‹å‰²ã«ã¯GCã®ã“ã¨å…¨ç„¶çŸ¥ã‚‰ãªã‹ã£ãŸï¼ˆæ±— GCã¨ã„ã†ã®ã¯ä¸è¦ã«ãªã£ãŸãƒ¡ãƒ¢ãƒªã‚’å›žåŽã™ã‚‹ã“ã¨ã‚’ã„ã„ã¾ã™ãŒãã®ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã«ã¯ã„ãã¤ã‹ã‚ã£ã¦ä»£è¡¨çš„ãªã‚‚ã®ã¨ã—ã¦ä»¥ä¸‹ã®2ã¤ãŒã‚ã‚Šã¾ã™ã€‚ Mark Sweep GC Coping GC Mark Sweep GCã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‹ã‚‰ãŸã©ã£ã¦ã„ã£ã¦Markã—ã¦ã„ãã¾ã™ã€‚MarkãŒç„¡ã„ã®ã¯ä½¿ã‚ã‚Œã¦ã„ãªã„ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãªã®ã§Sweepã—ã¾ã™ã€‚ãƒ¡ãƒªãƒƒãƒˆã¯å®Ÿè£…ãŒç°¡å˜ãªã“ã¨ã§ãƒ‡ãƒ¡ãƒªãƒƒãƒˆã¯ãƒ¡ãƒ¢ãƒªã®æ–ç‰‡åŒ–ã€ãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ãŒèµ·ãã‚‹ã“ã¨ã§ã™ã€‚ Coping GCã¯ãƒ’ãƒ¼ãƒ—é ˜åŸŸã‚’2ã¤ã«åˆ†ã‘ã¦ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ã‚³ãƒ”ãƒ¼ã—ãŸã‚Šç§»å‹•ã—ãŸã‚Šã™ã‚‹ã“ã¨ã§ã™ã€‚ãƒ¡ãƒªãƒƒãƒˆã¯ã‚¹ãƒ«ãƒ¼ãƒ—ãƒƒãƒˆãŒé«˜ã„ã“ã¨ã‚„ãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒ†ãƒ¼ã‚·ãƒ§ãƒ³
j5ik2o 2013/01/05
java

jvm

gc
ãƒªãƒ³ã‚¯
GCViewer
GCViewer (download) is a free open source tool to visualize data produced by the Java VM options -verbose:gc and -Xloggc:<file>. It also calculates garbage collection related performance metrics (throughput, accumulated pauses, longest pause, etc.). This can be very useful when tuning the garbage collection of a particular application by changing generation sizes or setting the initial heap size.
j5ik2o 2011/10/31
ãƒ„ãƒ¼ãƒ«

gc
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Network Attached Processing ã® Pauseless GC
æ›´æ–°å±¥æ´ (2005.11.18) è„šæ³¨*2ã‚’åŠ ç†ã€‚ (2005.11.17) æ–‡ç« ã‚’æŽ¨æ•²ã€‚ (2005.11.14) NMT bit ã® read barrier ã«ã¤ã„ã¦å˜˜ã‚’æ›¸ã„ã¦ã„ãŸã®ã§ä¿®æ£ã€‚ ç›®æ¬¡ å‰ç½®ã Pauseless GC Marking Phase Relocation & Remap Phase ãŠã—ã¾ã„ å‚è€ƒæ–‡çŒ® Azul Sysmtes (ç±³æ—¥) ã¯ Java ã‚„ .NET ã«ç‰¹åŒ–ã—ãŸå°‚ç”¨è¨ˆç®—æ©Ÿ Network Attached Processing (NAP) ã‚’æå”±ã—ã€ è£½å“ã¨ã—ã¦ Azul Compute Appliance ã‚’é–‹ç™ºã—ãŸã€‚ Azul Compute Appliance ã¯ã€ ã™ã§ã«ç¨¼å‹•ä¸ã® Solaris/Linux ã® J2SE/J2EE ã‚·ã‚¹ãƒ†ãƒ ã® Java VM ã‚’ Azul Systems ãŒæä¾›ã™ã‚‹ã‚¹ã‚¿ãƒ– JVM ã«ç½®ãæ›ãˆã‚‹ã ã‘ã§ã€
j5ik2o 2011/08/20
Pauseless GCã¯ã‚ã¾ã‚Šæ³¨ç›®ã•ã‚Œãªã‹ã£ãŸã¨ã„ã†...ã§ã‚‚èˆˆå‘³æ·±ã„

GC
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Javaãƒ¡ãƒ¢ãƒªã€GCãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã¨ãã‚Œã«ã¾ã¤ã‚ã‚‹ãƒˆãƒ©ãƒ–ãƒ«å¯¾å¿œæ‰‹é †ã¾ã¨ã‚ - æ—¥è¨˜ã®ã‚ˆã†ãªä½•ã‹
GCå‘¨ã‚Šã§ãƒˆãƒ©ãƒ–ãƒ«ã‚·ãƒ¥ãƒ¼ãƒ†ã‚£ãƒ³ã‚°ã—ãŸéš›ã®çµŒé¨“ã‚„ã€Webç‰ã§èª¿ã¹ãŸã“ã¨ã‚’ã¾ã¨ã‚ã¦ã¿ã‚‹ã€‚ å‰æ ãƒ»JVMã¯ã€Sun Javaã‚’æƒ³å®šã€‚(ä»–ã¯ä½¿ã£ãŸã“ã¨ãªã„ã§ã™ã€‚ã€‚ã€‚) ãƒ»Sun Java 1.5-1.6ã‚’æƒ³å®šã€‚ ç›®æ¨™ ãƒžã‚¤ãƒŠãƒ¼GCã€Full GCãã‚Œãžã‚ŒãŒé »ç™ºã™ã‚‹ã“ã¨ãªãã€ã‹ã¤ãã‚Œãžã‚Œã®å®Ÿè¡Œæ™‚é–“ã‚’1ç§’æœªæº€ã«æŠ‘ãˆã‚‹ã“ã¨ã€‚ ãƒžã‚¤ãƒŠãƒ¼GCã¯1ç§’æœªæº€ã©ã“ã‚ã§ã¯ãªãã€ã‚‚ã£ã¨çŸããªã‚‹ã¹ãã€‚ã©ã‚Œãã‚‰ã„ãŒç†æƒ³ã‹ã¯ï¼Ÿ(0.1ç§’æœªæº€ãã‚‰ã„ã‚’ç›®æŒ‡ã—ãŸã„ï¼Ÿ) é€£ç¶šã—ãŸè² è·çŠ¶æ…‹(æƒ³å®šã•ã‚Œã‚‹ãƒ”ãƒ¼ã‚¯ã‚¢ã‚¯ã‚»ã‚¹)ã§ã‚‚OutOfMemoryErrorãŒç™ºç”Ÿã—ãªã„ã“ã¨ã€‚ ç†æƒ³çš„ãªçŠ¶æ…‹ã¯ã€ä¸Šè¨˜ã«åŠ ãˆã¦ã€Full GCã®ç™ºç”ŸãŒä½Žé »åº¦ã§ã‚ã‚‹ã“ã¨ã€‚ å…·ä½“çš„ã«ã¯ã€ã§ãã‚‹ã ã‘ãƒžã‚¤ãƒŠãƒ¼GCã§çŸå‘½ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆ(1å›žä½¿ã£ãŸã‚‰ã‚‚ã†ä½¿ã‚ãªã„ã‚ˆã†ãªã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã€‚é€†ã«ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆç‰ã¯é•·å‘½ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¨ãªã‚‹)ã‚’ç ´æ£„ã•ã›ã¦ã€çŸå‘½ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒã€Tenu
j5ik2o 2011/01/08
Java

GC
ãƒªãƒ³ã‚¯
ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã®ä»•çµ„ã¿ã‚’ç†è§£ã™ã‚‹
GCã‚’é©åˆ‡ã«è¡Œã‚ã›ã‚‹ãŸã‚ã®ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºã®è¨å®š JVMã«GCã‚’é©åˆ‡ã«è¡Œã‚ã›ã‚‹ã«ã¯ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºã‚’é©åˆ‡ã«è¨å®šï¼ˆNewé ˜åŸŸã‚µã‚¤ã‚ºã€Oldé ˜åŸŸã‚µã‚¤ã‚ºã€é ˜åŸŸã‚µã‚¤ã‚ºã®ãƒãƒ©ãƒ³ã‚¹ãªã©ï¼‰ã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚å½“ç„¶ã€é©åˆ‡ãªãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºã¯ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã«ä¾å˜ã—ã¾ã™ã€‚ä¸€èˆ¬ã«ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºãŒå°ã•ã„ã¨GCãŒé »ç™ºã—ã¦ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒä½Žä¸‹ã—ã¾ã™ã€‚ã•ã‚‰ã«ã€ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºãŒå¿…è¦é‡ã‚’ä¸‹å›žã‚‹å ´åˆã¯OutOfMemoryErrorãŒç™ºç”Ÿã—ã¦ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒåœæ¢ã—ã¦ã—ã¾ã„ã¾ã™ã€‚ä¸€æ–¹ã€ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºãŒå¤§ãã„ã¨ã€GCã®èµ·å‹•å›žæ•°ã¯æ¸›ã‚Šã¾ã™ãŒã€GC1å›žå½“ãŸã‚Šã®å‡¦ç†æ™‚é–“ã€ã™ãªã‚ã¡ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³åœæ¢çŠ¶æ…‹ãŒé•·ããªã‚Šã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®å¿œç”æ™‚é–“ã«å•é¡ŒãŒå‡ºã‚‹å ´åˆã‚‚ã‚ã‚Šã¾ã™ã€‚ã‚·ã‚¹ãƒ†ãƒ ã®ç‰©ç†ãƒ¡ãƒ¢ãƒªã®ãƒ•ãƒªãƒ¼é ˜åŸŸãŒä¸è¶³ã™ã‚‹ã¾ã§ãƒ’ãƒ¼ãƒ—ã‚µã‚¤ã‚ºã‚’å¤§ããã™ã‚‹ã¨ã€ç‰©ç†ãƒ¡ãƒ¢ãƒªã‹ã‚‰ã‚¹ãƒ¯ãƒƒãƒ—é ˜åŸŸã¸ã®ãƒšãƒ¼ã‚¸ãƒ³ã‚°ãŒèµ·ã“ã£ã¦ã—ã¾ã„ã€ã‹ãªã‚Šã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒåŠ£åŒ–ã™ã‚‹å¯
j5ik2o 2010/02/01
ãƒ¡ãƒ¢ãƒª

gc

jvm

VM
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visualgc - GCè¦–è¦šåŒ–ãƒ„ãƒ¼ãƒ«
Java Is the Language of Possibilities Java is powering the innovation behind our digital world. Harness this potential with Java resources for student coders, hobbyists, developers, and IT leaders.
j5ik2o 2009/12/07
java

gc
ãƒªãƒ³ã‚¯
nextindex.jp
nextindex.jp 2020 Copyright. All Rights Reserved. The Sponsored Listings displayed above are served automatically by a third party. Neither the service provider nor the domain owner maintain any relationship with the advertisers. In case of trademark issues please contact the domain owner directly (contact information can be found in whois). Privacy Policy
j5ik2o 2009/11/15
java

gc
ãƒªãƒ³ã‚¯
syboos.jp
j5ik2o 2009/10/31
java

gc
ãƒªãƒ³ã‚¯
Efficient data transfer through zero copy
j5ik2o 2009/10/19
åŸºç¤Žç·¨

java

GC
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Java theory and practice: A brief history of garbage collection
j5ik2o 2009/10/19
åŸºç¤Ž

java

GC
ãƒªãƒ³ã‚¯
ãƒšãƒ¼ã‚¸ãŒè¦‹ã¤ã‹ã‚Šã¾ã›ã‚“ | æ—¥æœ¬HP
ãƒšãƒ¼ã‚¸ãŒè¦‹ã¤ã‹ã‚Šã¾ã›ã‚“ã€‚ ç›®çš„ã®ãƒšãƒ¼ã‚¸ã¯ã€ç§»å‹•ã¾ãŸã¯å‰Šé™¤ã«ã‚ˆã£ã¦ç„¡åŠ¹ã«ãªã£ã¦ã„ã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ç”³ã—è¨³ã‚ã‚Šã¾ã›ã‚“ãŒã€æ¤œç´¢ã¾ãŸã¯ãƒªãƒ³ã‚¯å…ˆã‚ˆã‚ŠãŠæŽ¢ã—ãã ã•ã„ã€‚
j5ik2o 2009/10/19
java

GC
ãƒªãƒ³ã‚¯
ãƒšãƒ¼ã‚¸ãŒè¦‹ã¤ã‹ã‚Šã¾ã›ã‚“ | æ—¥æœ¬HP
ãƒšãƒ¼ã‚¸ãŒè¦‹ã¤ã‹ã‚Šã¾ã›ã‚“ã€‚ ç›®çš„ã®ãƒšãƒ¼ã‚¸ã¯ã€ç§»å‹•ã¾ãŸã¯å‰Šé™¤ã«ã‚ˆã£ã¦ç„¡åŠ¹ã«ãªã£ã¦ã„ã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ç”³ã—è¨³ã‚ã‚Šã¾ã›ã‚“ãŒã€æ¤œç´¢ã¾ãŸã¯ãƒªãƒ³ã‚¯å…ˆã‚ˆã‚ŠãŠæŽ¢ã—ãã ã•ã„ã€‚
j5ik2o 2009/10/19
java

GC
ãƒªãƒ³ã‚¯
IBM Developer
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.
j5ik2o 2009/10/19
java

gc
ãƒªãƒ³ã‚¯
IBM Developer
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.
j5ik2o 2009/10/19
java

gc
ãƒªãƒ³ã‚¯
http://msugai.fc2web.com/java/perform/garbage.html
j5ik2o 2009/10/18
java

gc
ãƒªãƒ³ã‚¯
GC - GCã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ è©³ç´°è§£èª¬ - livedoor Wikiï¼ˆã‚¦ã‚£ã‚ï¼‰
GCã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ è©³ç´°è§£èª¬ æ—¥æœ¬èªžã®è³‡æ–™ãŒã™ããªã„GCã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ã«ã¤ã„ã¦è©³ç´°ã«è§£èª¬ã—ã¾ã™ ãƒˆãƒƒãƒ—ãƒšãƒ¼ã‚¸ãƒšãƒ¼ã‚¸ä¸€è¦§ãƒ¡ãƒ³ãƒãƒ¼ç·¨é›† GC æœ€çµ‚æ›´æ–°ï¼š author_nariÂ 2010å¹´03æœˆ14æ—¥(æ—¥) 20:47:11å±¥æ´ Tweet ã“ã®WikiãŒç›®æŒ‡ã™æ‰€ GCã¨ã¯ï¼Ÿ GCã‚’å¦ã¶å‰ã«çŸ¥ã£ã¦ãŠãäº‹ å®Ÿè¡Œæ™‚ãƒ¡ãƒ¢ãƒªæ§‹é€ åŸºæœ¬ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ç·¨ Reference Counter Mark&Sweep Copying å¿œç”¨ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ç·¨ IncrementalGC ä¸–ä»£åˆ¥GC ã‚¹ãƒŠãƒƒãƒ—ã‚·ãƒ§ãƒƒãƒˆåž‹GC LazySweep TwoFinger Lisp2 Partial Mark and Sweep -Cycle Collection- Mostly Parallel GC train gc MostlyCopyingGC(Bartlett 1989) TreadmillGC(Barker 1992) è£œè¶³
j5ik2o 2008/12/15
gc
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