{"id":10673,"date":"2023-11-28T21:41:11","date_gmt":"2023-11-28T13:41:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10673"},"modified":"2023-12-07T14:41:40","modified_gmt":"2023-12-07T06:41:40","slug":"jvm-zhong-lao-nian-dai-le-jie-ma","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhong-lao-nian-dai-le-jie-ma\/","title":{"rendered":"JVM\u4e2d\u8001\u5e74\u4ee3\u4e86\u89e3\u5417\uff1f"},"content":{"rendered":"

\u5728 Java \u865a\u62df\u673a\u7684\u5185\u5b58\u7ba1\u7406\u4e2d\uff0c\u5806\u5185\u5b58\u88ab\u5212\u5206\u4e3a\u65b0\u751f\u4ee3\uff08Young Generation\uff09\u3001\u8001\u5e74\u4ee3\uff08Old Generation\uff09\u548c\u6c38\u4e45\u4ee3\uff08\u6216\u5143\u7a7a\u95f4\uff0c\u6839\u636e\u4e0d\u540c\u7684 Java \u7248\u672c\u800c\u5b9a\uff09\u3002\u8001\u5e74\u4ee3\u662f\u5806\u5185\u5b58\u7684\u4e00\u90e8\u5206\uff0c\u4e3b\u8981\u7528\u4e8e\u5b58\u50a8\u957f\u65f6\u95f4\u5b58\u6d3b\u7684\u5bf9\u8c61\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5173\u4e8e\u8001\u5e74\u4ee3\u7684\u91cd\u8981\u7279\u70b9\u548c\u4fe1\u606f\uff1a<\/p>\n

    \n
  1. \n\u5bf9\u8c61\u5b58\u6d3b\u65f6\u95f4\u957f\uff1a<\/strong> \u8001\u5e74\u4ee3\u4e3b\u8981\u7528\u4e8e\u5b58\u50a8\u5b58\u6d3b\u65f6\u95f4\u8f83\u957f\u7684\u5bf9\u8c61\u3002\u8fd9\u4e9b\u5bf9\u8c61\u901a\u5e38\u662f\u7ecf\u8fc7\u591a\u6b21\u5783\u573e\u56de\u6536\u4ecd\u7136\u5b58\u6d3b\u4e0b\u6765\u7684\uff0c\u4f8b\u5982\u5728\u65b0\u751f\u4ee3\u591a\u6b21\u56de\u6536\u540e\u664b\u5347\u5230\u8001\u5e74\u4ee3\u7684\u5bf9\u8c61\u3002\n<\/li>\n
  2. \n\u5783\u573e\u56de\u6536\u6b21\u6570\u8f83\u5c11\uff1a<\/strong> \u7531\u4e8e\u8001\u5e74\u4ee3\u5b58\u50a8\u7684\u5bf9\u8c61\u5bff\u547d\u8f83\u957f\uff0c\u56e0\u6b64\u8001\u5e74\u4ee3\u7684\u5783\u573e\u56de\u6536\u6b21\u6570\u76f8\u5bf9\u8f83\u5c11\uff0c\u5783\u573e\u56de\u6536\u5668\u66f4\u6ce8\u91cd\u4e8e\u63d0\u9ad8\u5783\u573e\u56de\u6536\u7684\u6548\u7387\u3002\n<\/li>\n
  3. \nFull GC \u7684\u53d1\u751f\uff1a<\/strong> \u5728\u8001\u5e74\u4ee3\u8fdb\u884c\u5783\u573e\u56de\u6536\u65f6\uff0c\u901a\u5e38\u4f1a\u6d89\u53ca\u5230\u4e00\u6b21 Full GC\uff08Full Garbage Collection\uff09\uff0c\u5373\u6574\u4e2a\u5806\u5185\u5b58\u7684\u5783\u573e\u56de\u6536\u3002Full GC \u4f1a\u6682\u505c\u5e94\u7528\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u56e0\u6b64\u5b83\u7684\u53d1\u751f\u9891\u7387\u5bf9\u7cfb\u7edf\u7684\u6027\u80fd\u5f71\u54cd\u8f83\u5927\u3002\n<\/li>\n
  4. \n\u664b\u5347\u6761\u4ef6\uff1a<\/strong> \u5bf9\u8c61\u4ece\u65b0\u751f\u4ee3\u664b\u5347\u5230\u8001\u5e74\u4ee3\u901a\u5e38\u9700\u8981\u6ee1\u8db3\u4e00\u5b9a\u7684\u6761\u4ef6\uff0c\u4f8b\u5982\u5bf9\u8c61\u5e74\u9f84\u8d85\u8fc7\u4e00\u5b9a\u9608\u503c\uff08\u901a\u8fc7 -XX:MaxTenuringThreshold<\/code> \u53c2\u6570\u8fdb\u884c\u8c03\u6574\uff09\u3002\n<\/li>\n
  5. \n\u7a7a\u95f4\u6574\u7406\uff1a<\/strong> \u7531\u4e8e\u8001\u5e74\u4ee3\u7684\u5bf9\u8c61\u5b58\u6d3b\u65f6\u95f4\u8f83\u957f\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a7a\u95f4\u788e\u7247\u7684\u4ea7\u751f\u3002\u4e3a\u4e86\u51cf\u5c11\u7a7a\u95f4\u788e\u7247\uff0c\u8001\u5e74\u4ee3\u7684\u5783\u573e\u56de\u6536\u5668\u901a\u5e38\u4f1a\u91c7\u7528\u6807\u8bb0\u6574\u7406\uff08Mark-Compact\uff09\u6216\u6807\u8bb0\u6e05\u7406\uff08Mark-Sweep\uff09\u7b49\u6574\u7406\u7b97\u6cd5\u3002\n<\/li>\n
  6. \nCMS \u5783\u573e\u6536\u96c6\u5668\uff1a<\/strong> \u4e3a\u4e86\u51cf\u5c11 Full GC \u5bf9\u7cfb\u7edf\u7684\u505c\u987f\u65f6\u95f4\uff0cJava 6 \u5f15\u5165\u4e86\u5e76\u53d1\u6807\u8bb0\u6e05\u7406\u5783\u573e\u6536\u96c6\u5668\uff08CMS\uff0cConcurrent Mark-Sweep Garbage Collector\uff09\u3002CMS \u5c1d\u8bd5\u5728\u4e0d\u6682\u505c\u5e94\u7528\u7a0b\u5e8f\u7684\u60c5\u51b5\u4e0b\u56de\u6536\u8001\u5e74\u4ee3\u7684\u5783\u573e\u3002\n<\/li>\n<\/ol>\n

    \u8001\u5e74\u4ee3\u7684\u8bbe\u8ba1\u548c\u5783\u573e\u56de\u6536\u65b9\u5f0f\u5bf9\u4e8e Java \u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u90fd\u6709\u91cd\u8981\u5f71\u54cd\u3002\u5728\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5783\u573e\u56de\u6536\u5668\u548c\u8c03\u6574\u76f8\u5173\u53c2\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u5728 Java \u865a\u62df\u673a\u7684\u5185\u5b58\u7ba1\u7406\u4e2d\uff0c\u5806\u5185\u5b58\u88ab\u5212\u5206\u4e3a\u65b0\u751f\u4ee3\uff08Young Generation\uff09\u3001\u8001\u5e74\u4ee3\uff08Old G […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[],"class_list":["post-10673","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=10673"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10673\/revisions"}],"predecessor-version":[{"id":16878,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10673\/revisions\/16878"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10673"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}