{"id":274,"date":"2020-04-05T14:57:48","date_gmt":"2020-04-05T06:57:48","guid":{"rendered":"http:\/\/www.softeng.cn\/?p=274"},"modified":"2020-04-05T14:59:21","modified_gmt":"2020-04-05T06:59:21","slug":"%e8%85%be%e8%ae%af%e8%af%be%e5%a0%82-%e3%80%8a%e4%ba%ac%e4%b8%9c%e4%ba%bf%e7%ba%a7%e6%b5%81%e9%87%8fjvm%e8%b0%83%e4%bc%98%e5%ae%9e%e8%b7%b5%e3%80%8b%e8%af%be%e7%a8%8b%e7%ac%94","status":"publish","type":"post","link":"https:\/\/www.softeng.cn\/?p=274","title":{"rendered":"\u817e\u8baf\u8bfe\u5802\u2014\u2014\u300a\u4eac\u4e1c\u4ebf\u7ea7\u6d41\u91cfJVM\u8c03\u4f18\u5b9e\u8df5\u300b\u8bfe\u7a0b\u7b14\u8bb0"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Java\u865a\u62df\u673a\u5185\u5b58\u6a21\u578b<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"526\" src=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72471.png\" alt=\"\" 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class=\"wp-image-276\" srcset=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72472.png 1269w, https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72472-768x398.png 768w\" sizes=\"(max-width: 1269px) 100vw, 1269px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"445\" height=\"576\" src=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72473.png\" alt=\"\" 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srcset=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72474.png 1169w, https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72474-768x490.png 768w\" sizes=\"(max-width: 1169px) 100vw, 1169px\" 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class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1236\" height=\"476\" src=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72475.png\" alt=\"\" class=\"wp-image-279\" srcset=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72475.png 1236w, https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72475-768x296.png 768w\" sizes=\"(max-width: 1236px) 100vw, 1236px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u5783\u573e\u56de\u6536\u673a\u5236<\/strong><\/h2>\n\n\n\n<p>1\u3001\u5806\u5185\u90e8\u7684\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5806\u6ca1\u6709\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u5206\u914d\u5185\u5b58\u7a7a\u95f4\uff0c\u800c\u662f\u5171\u7528\u7684\uff0c\u5806\u5185\u90e8\u5206\u4e3a\u4e24\u5927\u533a\u57df\uff0c\u5206\u522b\u662f\u5e74\u8f7b\u4ee3\u533a\uff08\u9ed8\u8ba4\u5360\u5806\u5927\u5c0f\u76841\/3\uff09\u548c\u8001\u5e74\u4ee3\u533a\uff08\u9ed8\u8ba4\u5360\u5806\u5927\u5c0f\u76842\/3\uff09\uff0c\u5176\u4e2d\uff0c\u5e74\u8f7b\u4ee3\u53c8\u7ec6\u5206\u4e3a\u65b0\u751f\u4ee3\u533a\uff08Eden\uff0c\u4f0a\u7538\uff0c\u5360\u5e74\u8f7b\u4ee3\u5927\u5c0f\u76844\/5\uff09\u3001From\u533a\uff08\u5360\u5e74\u8f7b\u4ee3\u5927\u5c0f\u76841\/10\uff09\u548cTo\u533a\uff08\u5360\u5e74\u8f7b\u4ee3\u5927\u5c0f\u76841\/10\uff09\uff1b<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"651\" 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class=\"wp-image-281\"\/><\/figure>\n\n\n\n<p>4\u3001\u5bf9\u8c61\u4eceEden\u533a\u590d\u5236\u5230From\u533a\u65f6\uff0c\u5bf9\u8c61\u7684\u5206\u4ee3\u5e74\u9f84\u4f1a\u75310\u53d8\u62101\uff1b<br>5\u3001\u5f53\u7b2c\u4e8c\u6b21Eden\u533a\u88c5\u6ee1\u7684\u65f6\u5019\uff0c\u8fd8\u4f1a\u89e6\u53d1minor GC\u673a\u5236\uff0c\u4e0d\u8fc7\u8fd9\u6b21\u4f1a\u5bf9Eden\u533a\u548cSurvivor\u533a\u7edf\u4e00\u8fdb\u884c\u5783\u573e\u56de\u6536\uff0c\u540c\u65f6\u5c06Eden\u533a\u548cFrom\uff08S1\uff09\u533a\u7684\u975e\u5783\u573e\u5bf9\u8c61\u590d\u5236\u5230To\uff08S2\uff09\u533a\u57df\uff0c\u7136\u540e\u5bf9\u76f8\u5e94\u5bf9\u8c61\u7684\u5206\u4ee3\u5e74\u9f84\u52a01\uff0c\u5373\uff0c\u5c06Eden\u533a\u548cFrom\uff08S1\uff09\u533a\u6e05\u7a7a\uff1b<br>6\u3001\u7b2c\u4e09\u6b21Eden\u533a\u88c5\u6ee1\u7684\u65f6\u5019\uff0c\u7ee7\u7eed\u89e6\u53d1Minor 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class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"985\" height=\"514\" src=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72478.png\" alt=\"\" class=\"wp-image-282\" srcset=\"https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72478.png 985w, https:\/\/www.softeng.cn\/wp-content\/uploads\/2020\/04\/\u56fe\u72478-768x401.png 768w\" sizes=\"(max-width: 985px) 100vw, 985px\" \/><\/figure>\n\n\n\n<p>12\u3001\u5f53JVM\u5bf9\u67d0\u4e2aJava\u8fdb\u7a0b\u5728\u505aGC\uff08\u5305\u62ecMinor GC\u548cFull GC\uff09\u65f6\uff0c\u4f1aSTW\uff08stop the word\uff09\uff0c\u6682\u505c\u8be5\u8fdb\u7a0b\u5185\u6240\u6709\u7684\u7528\u6237\u7ebf\u7a0b\uff1b<br>13\u3001JVM\u8c03\u4f18\u7684\u4e3b\u8981\u76ee\u7684\u5c31\u662f\u51cf\u5c11GC\u6b21\u6570\uff0c\u51cf\u5c11STW\u6b21\u6570\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u8fd0\u884c\u901f\u5ea6\uff0c\u56e0\u4e3aMinor GC\u5f15\u53d1\u7684STW\u65f6\u95f4\u975e\u5e38\u77ed\uff0cFull 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