{"id":10563,"date":"2023-11-28T21:38:21","date_gmt":"2023-11-28T13:38:21","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10563"},"modified":"2023-12-07T14:22:03","modified_gmt":"2023-12-07T06:22:03","slug":"jvm-zhong-yi-ci-wan-zheng-degc-liu-cheng-congygc-d","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhong-yi-ci-wan-zheng-degc-liu-cheng-congygc-d\/","title":{"rendered":"JVM\u4e2d\u4e00\u6b21\u5b8c\u6574\u7684GC\u6d41\u7a0b\uff08\u4eceygc\u5230fgc\uff09\u662f\u600e\u6837\u7684\uff1f"},"content":{"rendered":"<p>\u4e00\u6b21\u5b8c\u6574\u7684\u5783\u573e\u56de\u6536\u6d41\u7a0b\u6d89\u53ca\u5230\u4e0d\u540c\u7684\u5783\u573e\u56de\u6536\u9636\u6bb5\uff0c\u4e3b\u8981\u5305\u62ec\u5e74\u8f7b\u4ee3\u5783\u573e\u56de\u6536\uff08Young Generation Garbage Collection\uff09\u548c\u8001\u5e74\u4ee3\u5783\u573e\u56de\u6536\uff08Full Garbage Collection\uff09\u3002\u4ee5\u4e0b\u662f\u4e00\u822c\u60c5\u51b5\u4e0b\u7684\u6574\u4e2a GC \u6d41\u7a0b\uff1a<\/p>\n<h3><a id=\"%E5%B9%B4%E8%BD%BB%E4%BB%A3%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6%EF%BC%88young-generation-gc%EF%BC%89%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u5e74\u8f7b\u4ee3\u5783\u573e\u56de\u6536\uff08Young Generation GC\uff09\uff1a<\/h3>\n<ol>\n<li>\n<strong>\u521d\u59cb\u9636\u6bb5\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f53\u5e94\u7528\u7a0b\u5e8f\u521b\u5efa\u65b0\u5bf9\u8c61\u65f6\uff0c\u5bf9\u8c61\u4f1a\u88ab\u5206\u914d\u5230\u5e74\u8f7b\u4ee3\u7684 Eden \u533a\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u5e74\u8f7b\u4ee3\u5783\u573e\u56de\u6536\u89e6\u53d1\uff08Minor GC\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f53 Eden \u533a\u6ee1\u65f6\uff0c\u89e6\u53d1\u4e00\u6b21\u5e74\u8f7b\u4ee3\u5783\u573e\u56de\u6536\u3002<\/li>\n<li>Eden \u533a\u4e2d\u5b58\u6d3b\u7684\u5bf9\u8c61\u4f1a\u88ab\u79fb\u52a8\u5230\u5b58\u6d3b\u533a\uff08Survivor Space\uff09\u3002<\/li>\n<li>\u5e78\u5b58\u7684\u5bf9\u8c61\u53ef\u80fd\u7ecf\u5386\u591a\u6b21 GC \u540e\u4f1a\u664b\u5347\u5230\u8001\u5e74\u4ee3\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u664b\u5347\u9636\u6bb5\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u5bf9\u8c61\u5728\u5e74\u8f7b\u4ee3\u7ecf\u5386\u4e86\u8db3\u591f\u6b21\u6570\u7684 GC\uff0c\u5b83\u4f1a\u88ab\u664b\u5347\u5230\u8001\u5e74\u4ee3\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3><a id=\"%E8%80%81%E5%B9%B4%E4%BB%A3%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6%EF%BC%88full-gc%EF%BC%89%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a>\u8001\u5e74\u4ee3\u5783\u573e\u56de\u6536\uff08Full GC\uff09\uff1a<\/h3>\n<ol start=\"4\">\n<li>\n<strong>\u8001\u5e74\u4ee3\u5783\u573e\u56de\u6536\u89e6\u53d1\uff08Full GC\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u5f53\u8001\u5e74\u4ee3\u7684\u7a7a\u95f4\u4e0d\u8db3\u65f6\uff0c\u6216\u8005\u56e0\u4e3a\u5176\u4ed6\u539f\u56e0\u89e6\u53d1 Full GC\u3002<\/li>\n<li>Full GC \u4f1a\u5bf9\u6574\u4e2a\u5806\u5185\u5b58\u8fdb\u884c\u5783\u573e\u56de\u6536\uff0c\u5305\u62ec\u5e74\u8f7b\u4ee3\u548c\u8001\u5e74\u4ee3\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u6574\u7406\u9636\u6bb5\uff1a<\/strong><\/p>\n<ul>\n<li>\u5728 Full GC \u4e2d\uff0c\u53ef\u80fd\u6d89\u53ca\u5230\u6574\u7406\u548c\u538b\u7f29\u5185\u5b58\uff0c\u4ee5\u51cf\u5c11\u788e\u7247\u548c\u63d0\u9ad8\u5185\u5b58\u5229\u7528\u7387\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u6267\u884c Finalization\uff08\u53ef\u9009\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u5728 Full GC \u4e4b\u524d\uff0c\u53ef\u80fd\u4f1a\u6267\u884c\u5bf9\u8c61\u7684 Finalization \u64cd\u4f5c\uff0c\u91ca\u653e\u4e00\u4e9b\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u5904\u7406\u5f15\u7528\uff08Reference Processing\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>\u5904\u7406\u4e00\u4e9b\u7279\u6b8a\u5f15\u7528\uff0c\u5982\u5f31\u5f15\u7528\u3001\u8f6f\u5f15\u7528\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u91cd\u65b0\u5206\u914d\u5bf9\u8c61\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u8c61\u53ef\u80fd\u4f1a\u88ab\u91cd\u65b0\u5206\u914d\u5230\u5408\u9002\u7684\u533a\u57df\uff0c\u5305\u62ec\u5e74\u8f7b\u4ee3\u548c\u8001\u5e74\u4ee3\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u56de\u6536\u5b8c\u6210\uff1a<\/strong><\/p>\n<ul>\n<li>Full GC \u5b8c\u6210\u540e\uff0c\u6574\u4e2a\u5783\u573e\u56de\u6536\u8fc7\u7a0b\u7ed3\u675f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b8c\u6574\u7684\u5783\u573e\u56de\u6536\u6d41\u7a0b\u53ef\u80fd\u56e0\u4e3a\u4e0d\u540c\u7684\u5783\u573e\u56de\u6536\u5668\u3001\u4e0d\u540c\u7684 JVM \u914d\u7f6e\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u4e0d\u540c\u800c\u6709\u6240\u4e0d\u540c\u3002\u4e00\u4e9b\u5783\u573e\u56de\u6536\u5668\u53ef\u80fd\u53ea\u5173\u6ce8\u5e74\u8f7b\u4ee3\uff0c\u800c\u53e6\u4e00\u4e9b\u53ef\u80fd\u4f1a\u540c\u65f6\u5904\u7406\u5e74\u8f7b\u4ee3\u548c\u8001\u5e74\u4ee3\u3002\u5728\u5b9e\u9645\u7684\u5e94\u7528\u4e2d\uff0c\u5783\u573e\u56de\u6536\u6d41\u7a0b\u53ef\u80fd\u4f1a\u9891\u7e41\u6267\u884c\uff0c\u800c\u5bf9\u4e8e\u4e00\u4e9b\u7279\u5b9a\u573a\u666f\uff0c\u9700\u8981\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u9700\u6c42\u8fdb\u884c\u8c03\u4f18\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u6b21\u5b8c\u6574\u7684\u5783\u573e\u56de\u6536\u6d41\u7a0b\u6d89\u53ca\u5230\u4e0d\u540c\u7684\u5783\u573e\u56de\u6536\u9636\u6bb5\uff0c\u4e3b\u8981\u5305\u62ec\u5e74\u8f7b\u4ee3\u5783\u573e\u56de\u6536\uff08Young Generation Ga [&hellip;]<\/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-10563","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10563","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=10563"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10563\/revisions"}],"predecessor-version":[{"id":16860,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10563\/revisions\/16860"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10563"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}