{"id":51159,"date":"2025-08-10T18:30:48","date_gmt":"2025-08-10T10:30:48","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/51159.html"},"modified":"2025-08-10T18:30:48","modified_gmt":"2025-08-10T10:30:48","slug":"jvm%e5%9e%83%e5%9c%be%e6%94%b6%e9%9b%86%e7%ae%97%e6%b3%95%ef%bc%88%e7%94%b1%e4%ba%8e%e5%b9%b3%e5%8f%b0bug%ef%bc%8c%e4%b8%89%e5%bc%a0%e5%9b%be%e7%89%87%e7%a8%8d%e5%90%8e%e4%bc%9a%e8%a1%a5%e4%b8%8a","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/51159.html","title":{"rendered":"JVM\u5783\u573e\u6536\u96c6\u7b97\u6cd5\uff08\u7531\u4e8e\u5e73\u53f0bug\uff0c\u4e09\u5f20\u56fe\u7247\u7a0d\u540e\u4f1a\u8865\u4e0a\uff09"},"content":{"rendered":"<h2>1. \u5783\u573e\u6536\u96c6\u7b97\u6cd5<\/h2>\n<h3>1.1 \u5bf9\u8c61\u5206\u4ee3\u6536\u96c6\u7406\u8bba<\/h3>\n<ul>\n<li>\u5783\u573e\u6536\u96c6\u5668\u5927\u90fd\u6570\u90fd\u9075\u5faa\u201c\u5206\u4ee3\u6536\u96c6\u201d\u7406\u8bba&#xff0c;\u4e3b\u8981\u7b80\u5386\u5728\u4e24\u4e2a\u5206\u4ee3\u5047\u8bf4\u4e0a&#xff1a;\n<ul>\n<li>\u5f31\u5206\u4ee3\u5047\u8bf4&#xff1a;\u7edd\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u671d\u751f\u5915\u706d\u7684\u3002<\/li>\n<li>\u5f3a\u5206\u4ee3\u5047\u8bf4&#xff1a;\u71ac\u8fc7\u8d8a\u591a\u6b21\u5783\u573e\u6536\u96c6\u8fc7\u7a0b\u7684\u5bf9\u8c61\u5c31\u8d8a\u96be\u4ee5\u6d88\u4ea1\u3002<\/li>\n<li>\u8de8\u4ee3\u5f15\u7528\u5047\u8bf4&#xff1a;\u8de8\u4ee3\u5f15\u7528\u76f8\u5bf9\u4e8e\u540c\u4ee3\u6765\u8bf4\u4ec5\u5360\u6781\u5c11\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8fd9\u51e0\u4e2a\u5206\u4ee3\u5047\u8bf4\u5171\u540c\u5960\u5b9a\u4e86\u591a\u6b3e\u5e38\u7528\u7684\u5783\u573e\u6536\u96c6\u5668\u4e00\u81f4\u7684\u8bbe\u8ba1\u539f\u5219&#xff08;\u4f8b\u5982 HotSpot&#xff09;\u3002\u6536\u96c6\u5668\u5e94\u8be5\u5c06\u5806\u5212\u5206\u51fa\u4e0d\u540c\u7684\u533a\u57df&#xff0c;\u7136\u540e\u5c06\u56de\u6536\u5bf9\u8c61\u4f9d\u636e\u5176\u71ac\u8fc7\u5783\u573e\u6536\u96c6\u8fc7\u7a0b\u7684\u6b21\u6570\u5206\u914d\u5230\u4e0d\u540c\u7684\u533a\u57df\u4e2d\u5b58\u50a8\u3002\n<ul>\n<li>\u5982\u679c\u4e00\u4e2a\u533a\u57df\u4e2d\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u96be\u4ee5\u71ac\u8fc7\u5783\u573e\u6536\u96c6\u8fc7\u7a0b\u7684\u8bdd&#xff0c;\u90a3\u4e48\u628a\u4ed6\u4eec\u96c6\u4e2d\u653e\u5728\u4e00\u8d77&#xff0c;\u6bcf\u6b21\u56de\u6536\u65f6\u53ea\u5173\u6ce8\u5982\u4f55\u4fdd\u7559\u5c11\u91cf\u5b58\u6d3b\u800c\u4e0d\u662f\u53bb\u6807\u8bb0\u90a3\u4e9b\u5927\u91cf\u5c06\u8981\u88ab\u56de\u6536\u7684\u5bf9\u8c61&#xff0c;\u5c31\u80fd\u4ee5\u4f4e\u4ee3\u4ef7\u56de\u6536\u5230\u5927\u91cf\u7684\u7a7a\u95f4\u3002&#xff08;\u65b0\u751f\u4ee3&#xff09;<\/li>\n<li>\u5982\u679c\u5269\u4e0b\u7684\u90fd\u662f\u96be\u4ee5\u56de\u6536\u7684\u5bf9\u8c61&#xff0c;\u90a3\u4e48\u628a\u4ed6\u4eec\u96c6\u4e2d\u653e\u5728\u4e00\u5757\u865a\u62df\u673a\u53ef\u4ee5\u4f7f\u7528\u8f83\u4f4e\u7684\u9891\u7387\u6765\u56de\u6536\u8fd9\u4e2a\u533a\u57df&#xff0c;\u8fd9\u5c31\u540c\u65f6\u517c\u987e\u4e86\u5783\u573e\u6536\u96c6\u7684\u65f6\u95f4\u5f00\u9500\u548c\u5185\u5b58\u7684\u7a7a\u95f4\u7684\u6709\u6548\u5229\u7528\u3002&#xff08;\u8001\u5e74\u4ee3&#xff09;<\/li>\n<li>\u5982\u679c\u5b58\u5728\u8de8\u4ee3\u5f15\u7528\u7684\u60c5\u51b5\u4e0b&#xff0c;\u7531\u4e8e\u8001\u5e74\u4ee3\u96be\u4ee5\u56de\u6536&#xff0c;\u65b0\u751f\u4ee3\u5bf9\u8c61\u4e5f\u4f1a\u96be\u4ee5\u56de\u6536&#xff0c;\u8fdb\u800c\u5728\u5e74\u9f84\u589e\u957f\u4e4b\u540e\u65b0\u751f\u5bf9\u8c61\u4e5f\u8fdb\u5165\u5230\u8001\u5e74\u4ee3&#xff0c;\u8fd9\u65f6&#xff0c;\u8de8\u4ee3\u5f15\u7528\u4e5f\u4f1a\u968f\u5373\u88ab\u6d88\u9664\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>1.1.1 GC \u540d\u8bcd\u89e3\u91ca<\/h4>\n<ul>\n<li>\u90e8\u5206\u6536\u96c6&#xff08;Partial GC&#xff09;&#xff1a;\u6307\u76ee\u6807\u4e0d\u662f\u5b8c\u6574\u6536\u96c6\u6574\u4e2a\u5806\n<ul>\n<li>\u65b0\u751f\u4ee3\u6536\u96c6&#xff08;Minor GC\/Young GC&#xff09;&#xff1a;\u6307\u76ee\u6807\u53ea\u662f\u65b0\u751f\u4ee3\u7684\u5783\u573e\u6536\u96c6\u3002<\/li>\n<li>\u8001\u5e74\u4ee3\u6536\u96c6&#xff08;Major GC\/Old GC&#xff09;&#xff1a;\u6307\u76ee\u6807\u53ea\u662f\u8001\u5e74\u4ee3\u7684\u5783\u573e\u6536\u96c6\u3002\u76ee\u524d\u53ea\u6709CMS\u6536\u96c6\u5668\u4f1a\u6709\u5355\u72ec\u6536\u96c6\u8001\u5e74\u4ee3\u7684\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u6df7\u5408\u6536\u96c6&#xff08;Mixed GC&#xff09;&#xff1a;\u6307\u76ee\u6807\u662f\u6536\u96c6\u6574\u4e2a\u65b0\u751f\u4ee3\u4ee5\u53ca\u90e8\u5206\u8001\u5e74\u4ee3\u7684\u5783\u573e\u6536\u96c6\u3002\u76ee\u524d\u53ea\u6709G1\u6536\u96c6\u5668\u4f1a\u6709\u8fd9\u79cd\u884c\u4e3a\u3002<\/li>\n<li>\u6574\u5806\u6536\u96c6&#xff08;Full GC&#xff09;&#xff1a;\u6536\u96c6\u6574\u4e2aJava\u5806\u548c\u65b9\u6cd5\u533a\u7684\u5783\u573e\u6536\u96c6\u3002<br \/>\n\u6807\u8bb0-\u6e05\u9664\u7b97\u6cd5&#xff08;Mark-Sweep&#xff09;<\/li>\n<li>\u7531\u540d\u5b57\u4e5f\u53ef\u4ee5\u770b\u51fa\u6765&#xff0c;\u7b97\u6cd5\u5206\u4e3a\u201c\u6807\u8bb0\u201d\u548c\u201c\u6e05\u9664\u201d\u4e24\u4e2a\u9636\u6bb5&#xff1a;\u9996\u5148\u6807\u8bb0\u51fa\u6240\u6709\u9700\u8981\u56de\u6536\u7684\u5bf9\u8c61&#xff0c;\u5728\u6807\u8bb0\u5b8c\u6210\u540e&#xff0c;\u7edf\u4e00\u56de\u6536\u6389\u6240\u6709\u88ab\u6807\u8bb0\u7684\u5bf9\u8c61\u3002<\/li>\n<li>\u5b83\u662f\u6700\u57fa\u7840\u7684\u6536\u96c6\u7b97\u6cd5&#xff0c;\u540e\u7eed\u7684\u6536\u96c6\u7b97\u6cd5\u5927\u591a\u90fd\u662f\u4ee5\u6807\u8bb0-\u6e05\u9664\u7b97\u6cd5\u4e3a\u57fa\u7840&#xff0c;\u5bf9\u5b83\u7684\u7f3a\u70b9\u8fdb\u884c\u6539\u8fdb\u800c\u5f97\u5230\u7684\u3002\u5b83\u7684\u4e3b\u8981\u7f3a\u70b9\u6709\u4e24\u4e2a\n<ul>\n<li>\u6267\u884c\u6548\u7387\u4e0d\u7a33\u5b9a&#xff1a;\u5982\u679c Java \u5806\u4e2d\u5305\u542b\u5927\u91cf\u5bf9\u8c61&#xff0c;\u800c\u4e14\u5176\u4e2d\u5927\u90e8\u5206\u662f\u9700\u8981\u56de\u6536\u7684&#xff0c;\u5c31\u9700\u8981\u8fdb\u884c\u5927\u91cf\u6807\u8bb0\u548c\u6e05\u9664\u7684\u52a8\u4f5c&#xff0c;\u4f1a\u968f\u7740\u5bf9\u8c61\u6570\u91cf\u589e\u957f\u800c\u964d\u4f4e\u3002<\/li>\n<li>\u5185\u5b58\u7a7a\u95f4\u788e\u7247\u5316\u95ee\u9898&#xff1a;\u6e05\u9664\u4e4b\u540e\u53ef\u80fd\u4f1a\u6709\u5927\u91cf\u4e0d\u8fde\u7eed\u7684\u5185\u5b58\u788e\u7247&#xff0c;\u7a7a\u95f4\u788e\u7247\u592a\u591a\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u9700\u8981\u5206\u914d\u8f83\u5927\u5bf9\u8c61\u65f6&#xff0c;\u65e0\u6cd5\u627e\u5230\u8db3\u591f\u7684\u8fde\u7eed\u5185\u5b58\u800c\u4e0d\u5f97\u4e0d\u63d0\u524d\u89e6\u53d1\u53e6\u4e00\u6b21\u5783\u573e\u6536\u96c6\u52a8\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u56fe\u5f0f&#xff1a;<\/li>\n<\/ul>\n<h3>1.2 \u6807\u8bb0-\u590d\u5236\u7b97\u6cd5&#xff08;Semispace Copying&#xff09;<\/h3>\n<ul>\n<li>\n<p>\u6807\u8bb0-\u590d\u5236\u7b97\u6cd5\u5e38\u88ab\u79f0\u4e3a\u590d\u5236\u7b97\u6cd5\u3002\u4e3a\u4e86\u89e3\u51b3\u6807\u8bb0-\u6e05\u9664\u7b97\u6cd5\u9762\u5bf9\u5927\u91cf\u53ef\u56de\u6536\u5bf9\u8c61\u65f6\u6267\u884c\u6548\u7387\u4f4e\u7684\u95ee\u9898&#xff0c;\u5c06\u5c06\u5185\u5b58\u6309\u5bb9\u91cf\u5212\u5206\u4e3a\u5927\u5c0f\u76f8\u7b49\u7684\u4e24\u5757&#xff0c;\u6bcf\u6b21\u53ea\u4f7f\u7528\u5176\u4e2d\u7684\u4e00\u5757\u3002\u5f53\u8fd9\u4e00\u5757\u7684\u5185\u5b58\u7528\u6211\u62ff\u4e86&#xff0c;\u5c31\u6c5f\u6d77\u5b58\u6d3b\u7740\u7684\u5bf9\u8c61\u590d\u5236\u5230\u53e6\u4e00\u5757\u4e0a\u9762&#xff0c;\u7136\u540e\u518d\u628a\u4f7f\u7528\u8fc7\u7684\u5168\u90e8\u6e05\u7406\u6389\u3002<\/p>\n<ul>\n<li>\u5982\u679c\u5185\u5b58\u4e2d\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u5b58\u6d3b\u7684&#xff0c;\u8fd9\u79cd\u7b97\u6cd5\u5c06\u4f1a\u4ea7\u751f\u5927\u91cf\u7684\u5185\u5b58\u95f4\u590d\u5236\u7684\u5f00\u9500\u3002<\/li>\n<li>\u5982\u679c\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u53ef\u56de\u6536\u7684\u60c5\u51b5&#xff0c;\u7b97\u6cd5\u9700\u8981\u590d\u5236\u7684\u662f\u5c11\u6570\u5b58\u6d3b\u7684\u5bf9\u8c61&#xff0c;\u7531\u4e8e\u6bcf\u6b21\u90fd\u662f\u9488\u5bf9\u534a\u4e2a\u533a\u8fdb\u884c\u5185\u5b58\u56de\u6536&#xff0c;\u5206\u914d\u65f6\u4e5f\u5c31\u4e0d\u7528\u8003\u8651\u6709\u7a7a\u95f4\u788e\u7247\u5316\u7684\u590d\u6742\u60c5\u51b5&#xff0c;\u53ea\u8981\u79fb\u52a8\u5806\u9876\u6307\u9488&#xff0c;\u6309\u987a\u5e8f\u5206\u914d\u5373\u53ef\u3002\u4ee3\u4ef7\u5c31\u662f\u5c06\u53ef\u7528\u5185\u5b58\u7f29\u5c0f\u4e3a\u539f\u6765\u7684\u4e00\u534a\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u56fe\u793a<\/p>\n<\/li>\n<li>\n<p>HotSpot 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