{"id":6844,"date":"2025-08-27T11:15:49","date_gmt":"2025-08-27T03:15:49","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6844"},"modified":"2025-08-27T11:15:49","modified_gmt":"2025-08-27T03:15:49","slug":"java-%e5%9e%83%e5%9c%be%e5%9b%9e%e6%94%b6%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6844","title":{"rendered":"Java \u5783\u573e\u56de\u6536\u7684\u51e0\u79cd\u65b9\u5f0f"},"content":{"rendered":"<p>Java \u5783\u573e\u56de\u6536\uff08Garbage Collection, GC\uff09\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff0c\u4e0d\u540c\u7684\u5783\u573e\u6536\u96c6\u5668\u91c7\u7528\u4e86\u4e0d\u540c\u7684\u56de\u6536\u7b56\u7565\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6807\u8bb0-\u6e05\u9664\u7b97\u6cd5\uff08Mark-Sweep\uff09<\/strong><\/p>\n<ul>\n<li>\u5206\u4e3a&quot;\u6807\u8bb0&quot;\u548c&quot;\u6e05\u9664&quot;\u4e24\u4e2a\u9636\u6bb5\uff1a\u5148\u6807\u8bb0\u51fa\u6240\u6709\u9700\u8981\u56de\u6536\u7684\u5bf9\u8c61\uff0c\u7136\u540e\u7edf\u4e00\u56de\u6536\u8fd9\u4e9b\u5bf9\u8c61<\/li>\n<li>\u7f3a\u70b9\uff1a\u4f1a\u4ea7\u751f\u5185\u5b58\u788e\u7247\uff0c\u53ef\u80fd\u5bfc\u81f4\u540e\u7eed\u65e0\u6cd5\u4e3a\u5927\u5bf9\u8c61\u5206\u914d\u8fde\u7eed\u5185\u5b58<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6807\u8bb0-\u590d\u5236\u7b97\u6cd5\uff08Mark-Copy\uff09<\/strong><\/p>\n<ul>\n<li>\u5c06\u5185\u5b58\u5206\u4e3a\u5927\u5c0f\u76f8\u7b49\u7684\u4e24\u5757\uff0c\u6bcf\u6b21\u53ea\u4f7f\u7528\u5176\u4e2d\u4e00\u5757<\/li>\n<li>\u6807\u8bb0\u51fa\u5b58\u6d3b\u5bf9\u8c61\u540e\uff0c\u5c06\u5176\u590d\u5236\u5230\u53e6\u4e00\u5757\u5185\u5b58\uff0c\u7136\u540e\u6e05\u9664\u5f53\u524d\u5757\u7684\u6240\u6709\u5bf9\u8c61<\/li>\n<li>\u4f18\u70b9\uff1a\u89e3\u51b3\u4e86\u5185\u5b58\u788e\u7247\u95ee\u9898\uff1b\u7f3a\u70b9\uff1a\u5185\u5b58\u5229\u7528\u7387\u4f4e\uff08\u4ec550%\uff09<\/li>\n<li>\u5178\u578b\u5e94\u7528\uff1a\u65b0\u751f\u4ee3\u7684Serial GC\u3001ParNew GC<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6807\u8bb0-\u6574\u7406\u7b97\u6cd5\uff08Mark-Compact\uff09<\/strong><\/p>\n<ul>\n<li>\u6807\u8bb0\u51fa\u5b58\u6d3b\u5bf9\u8c61\u540e\uff0c\u5c06\u6240\u6709\u5b58\u6d3b\u5bf9\u8c61\u5411\u5185\u5b58\u7a7a\u95f4\u7684\u4e00\u7aef\u79fb\u52a8\uff0c\u7136\u540e\u6e05\u9664\u8fb9\u754c\u4ee5\u5916\u7684\u5185\u5b58<\/li>\n<li>\u4f18\u70b9\uff1a\u65e2\u907f\u514d\u5185\u5b58\u788e\u7247\uff0c\u53c8\u63d0\u9ad8\u5185\u5b58\u5229\u7528\u7387\uff1b\u7f3a\u70b9\uff1a\u79fb\u52a8\u5bf9\u8c61\u9700\u8981\u989d\u5916\u5f00\u9500<\/li>\n<li>\u5178\u578b\u5e94\u7528\uff1a\u8001\u5e74\u4ee3\u7684\u5783\u573e\u6536\u96c6\u5668<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u5206\u4ee3\u6536\u96c6\u7b97\u6cd5\uff08Generational Collection\uff09<\/strong><\/p>\n<ul>\n<li>\u6839\u636e\u5bf9\u8c61\u7684\u5b58\u6d3b\u5468\u671f\u5c06\u5185\u5b58\u5212\u5206\u4e3a\u4e0d\u540c\u533a\u57df\uff08\u65b0\u751f\u4ee3\u3001\u8001\u5e74\u4ee3\u7b49\uff09<\/li>\n<li>\u65b0\u751f\u4ee3\uff1a\u5bf9\u8c61\u5b58\u6d3b\u65f6\u95f4\u77ed\uff0c\u91c7\u7528\u6807\u8bb0-\u590d\u5236\u7b97\u6cd5<\/li>\n<li>\u8001\u5e74\u4ee3\uff1a\u5bf9\u8c61\u5b58\u6d3b\u65f6\u95f4\u957f\uff0c\u91c7\u7528\u6807\u8bb0-\u6e05\u9664\u6216\u6807\u8bb0-\u6574\u7406\u7b97\u6cd5<\/li>\n<li>\u8fd9\u662f\u5f53\u524d\u4e3b\u6d41JVM\u91c7\u7528\u7684\u5783\u573e\u56de\u6536\u601d\u60f3\uff0c\u5982HotSpot\u865a\u62df\u673a<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cJava\u865a\u62df\u673a\uff08\u5982HotSpot\uff09\u63d0\u4f9b\u4e86\u591a\u79cd\u57fa\u4e8e\u4e0a\u8ff0\u7b97\u6cd5\u7684\u5783\u573e\u6536\u96c6\u5668\uff0c\u5982Serial GC\u3001Parallel GC\u3001CMS\u3001G1\u3001ZGC\u3001Shenandoah\u7b49\uff0c\u5b83\u4eec\u5728\u541e\u5410\u91cf\u3001\u5ef6\u8fdf\u7b49\u65b9\u9762\u5404\u6709\u4fa7\u91cd\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u5783\u573e\u56de\u6536\uff08Garbage Collection, GC\uff09\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff0c\u4e0d\u540c\u7684\u5783\u573e\u6536\u96c6\u5668\u91c7\u7528&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/t.n-years.com\/?p=6844\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[123],"tags":[],"class_list":["post-6844","post","type-post","status-publish","format-standard","hentry","category-123"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6844"}],"version-history":[{"count":1,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6844\/revisions"}],"predecessor-version":[{"id":6845,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6844\/revisions\/6845"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}