{"id":82767,"date":"2026-07-25T12:17:10","date_gmt":"2026-07-25T04:17:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/82767.html"},"modified":"2026-07-25T12:17:10","modified_gmt":"2026-07-25T04:17:10","slug":"java%e8%99%9a%e6%8b%9f%e6%9c%ba%ef%bc%9a%e5%9e%83%e5%9c%be%e5%9b%9e%e6%94%b6%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/82767.html","title":{"rendered":"Java\u865a\u62df\u673a\uff1a\u5783\u573e\u56de\u6536\u7b97\u6cd5"},"content":{"rendered":"<h3>\u4e00\u3001 \u5783\u573e\u56de\u6536\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;\u53ef\u8fbe\u6027\u5206\u6790<\/h3>\n<p>\u5783\u573e\u56de\u6536&#xff08;GC&#xff0c;Garbage Collection&#xff09;\u5230\u5e95\u662f\u5728\u56de\u6536\u4ec0\u4e48&#xff1f;\u5b83\u7684\u57fa\u672c\u601d\u60f3\u53ef\u4ee5\u5f52\u7eb3\u4e3a\u4e00\u53e5\u8bdd&#xff1a;\u8003\u5bdf\u6bcf\u4e00\u4e2a\u5bf9\u8c61\u7684\u201c\u53ef\u89e6\u53ca\u6027\u201d\u3002<\/p>\n<ul>\n<li>\n<p>\u5982\u4f55\u5224\u65ad\u201c\u6d3b\u201d\u7684&#xff1f;\u00a0JVM\u8bbe\u5b9a\u4e86\u4e00\u4e9b\u201c\u6839\u5bf9\u8c61&#xff08;GC Roots&#xff09;\u201d&#xff08;\u5982\u6808\u5e27\u4e2d\u7684\u672c\u5730\u53d8\u91cf\u3001\u9759\u6001\u53d8\u91cf\u7b49&#xff09;\u3002\u4ece\u8fd9\u4e9b\u6839\u8282\u70b9\u51fa\u53d1&#xff0c;\u53ea\u8981\u80fd\u591f\u987a\u7740\u5f15\u7528\u94fe\u4e00\u8def\u8ffd\u8e2a\u5230\u7684\u5bf9\u8c61&#xff0c;\u5c31\u8bf4\u660e\u5b83\u6b63\u5728\u88ab\u4f7f\u7528&#xff0c;\u662f\u6d3b\u7740\u7684\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u5224\u65ad\u201c\u6b7b\u201d\u7684&#xff1f;\u00a0\u5982\u679c\u4ece\u6240\u6709\u7684\u6839\u8282\u70b9\u51fa\u53d1&#xff0c;\u90fd\u65e0\u6cd5\u8bbf\u95ee\u5230\u67d0\u4e2a\u5bf9\u8c61&#xff0c;\u8bf4\u660e\u8fd9\u4e2a\u5bf9\u8c61\u5df2\u7ecf\u201c\u4e0e\u4e16\u9694\u7edd\u201d&#xff0c;\u53ef\u4ee5\u88ab\u5f53\u4f5c\u5783\u573e\u56de\u6536\u4e86\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e8c\u3001 \u56db\u5927\u6838\u5fc3\u5783\u573e\u56de\u6536\u7b97\u6cd5\u6f14\u8fdb<\/h3>\n<p>\u865a\u62df\u673a\u5e76\u6ca1\u6709\u4f7f\u7528\u5355\u4e00\u7b97\u6cd5&#xff0c;\u800c\u662f\u6839\u636e\u4e0d\u540c\u573a\u666f\u91c7\u7528\u4e86\u4e0d\u540c\u7b56\u7565\u3002\u6211\u4eec\u6765\u770b\u770b\u5b83\u4eec\u5404\u81ea\u7684\u4f18\u52a3\u3002<\/p>\n<h4>1. \u5f15\u7528\u8ba1\u6570\u6cd5&#xff08;\u88ab\u6dd8\u6c70\u7684\u201c\u53e4\u8001\u65b9\u6cd5\u201d&#xff09;<\/h4>\n<p>\u8fd9\u662f\u6700\u7b80\u5355\u7c97\u66b4\u7684\u65b9\u6cd5&#xff1a;\u6bcf\u4e2a\u5bf9\u8c61\u914d\u4e00\u4e2a\u8ba1\u6570\u5668&#xff0c;\u6709\u4eba\u5f15\u7528\u5c31&#043;1&#xff0c;\u5f15\u7528\u5931\u6548\u5c31-1\u3002\u8ba1\u6570\u5668\u4e3a0&#xff0c;\u5c31\u56de\u6536\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041708-6a6438c46d8d7.png\" \/><\/p>\n<ul>\n<li>\n<p>\u4f18\u70b9&#xff1a;\u5b9e\u73b0\u6781\u5176\u7b80\u5355&#xff0c;\u5b9e\u65f6\u6027\u597d\u3002<\/p>\n<\/li>\n<li>\n<p>\u81f4\u547d\u7f3a\u70b9&#xff1a;<\/p>\n<li>\n<p>\u65e0\u6cd5\u89e3\u51b3\u201c\u5faa\u73af\u5f15\u7528\u201d&#xff08;\u8fd9\u662f\u5b83\u88abJava\u629b\u5f03\u7684\u6839\u672c\u539f\u56e0&#xff09;\u3002\u6bd4\u5982\u5bf9\u8c61A\u5f15\u7528\u4e86B&#xff0c;B\u5f15\u7528\u4e86A&#xff0c;\u4f46\u9664\u6b64\u4e4b\u5916\u6ca1\u522b\u4eba\u5f15\u7528\u5b83\u4eec\u4e86\u3002\u6b64\u65f6A\u548cB\u7684\u8ba1\u6570\u5668\u90fd\u662f1&#xff0c;\u5b83\u4eec\u90fd\u8ba4\u4e3a\u5bf9\u65b9\u8fd8\u6d3b\u7740&#xff0c;\u5bfc\u81f4\u5783\u573e\u65e0\u6cd5\u88ab\u56de\u6536&#xff0c;\u9020\u6210\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n<\/li>\n<li>\n<p>\u6027\u80fd\u6d88\u8017&#xff1a;\u6bcf\u6b21\u8d4b\u503c\u90fd\u8981\u52a0\u51cf\u8ba1\u6570\u5668&#xff0c;\u5bf9\u7cfb\u7edf\u6027\u80fd\u6709\u635f\u8017\u3002<\/p>\n<\/li>\n<\/li>\n<\/ul>\n<p>\u7ed3\u8bba&#xff1a;Java \u865a\u62df\u673a\u4ece\u672a\u91c7\u7528\u5f15\u7528\u8ba1\u6570\u6cd5\u3002<\/p>\n<h4>2. \u6807\u8bb0\u6e05\u9664\u6cd5&#xff08;Mark-Sweep&#xff09;&#xff1a;\u73b0\u4ee3\u7b97\u6cd5\u7684\u57fa\u7840<\/h4>\n<p>\u8fd9\u662f\u6700\u57fa\u7840\u7684\u7b97\u6cd5&#xff0c;\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041708-6a6438c485e99.png\" \/><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041708-6a6438c4b86a0.png\" \/><\/p>\n<li>\n<p>\u6807\u8bb0&#xff1a;\u901a\u8fc7\u6839\u8282\u70b9&#xff0c;\u628a\u80fd\u8bbf\u95ee\u5230\u7684\u5b58\u6d3b\u5bf9\u8c61\u7edf\u7edf\u6253\u4e0a\u6807\u8bb0\u3002<\/p>\n<\/li>\n<li>\n<p>\u6e05\u9664&#xff1a;\u628a\u6ca1\u6709\u6807\u8bb0\u7684\u5bf9\u8c61\u76f4\u63a5\u62b9\u6389&#xff0c;\u91ca\u653e\u7a7a\u95f4\u3002<\/p>\n<\/li>\n<ul>\n<li>\n<p>\u4f18\u70b9&#xff1a;\u4e0d\u9700\u8981\u989d\u5916\u7684\u7a7a\u95f4&#xff0c;\u5b9e\u73b0\u8d77\u6765\u76f8\u5bf9\u76f4\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>\u81f4\u547d\u7f3a\u70b9&#xff1a;\u5185\u5b58\u788e\u7247\u5316\u3002<br \/>\n\u56de\u6536\u540e\u7684\u5185\u5b58\u7a7a\u95f4\u662f\u4e0d\u8fde\u7eed\u7684\u3002\u5c31\u50cf\u4e00\u5757\u5de8\u5927\u7684\u5976\u916a\u88ab\u6316\u5f97\u5343\u75ae\u767e\u5b54\u3002\u5982\u679c\u4f60\u60f3\u8981\u5206\u914d\u4e00\u4e2a\u5927\u5bf9\u8c61&#xff08;\u6bd4\u5982\u4e00\u4e2a\u5927\u6570\u7ec4&#xff09;&#xff0c;\u56e0\u4e3a\u627e\u4e0d\u5230\u8fde\u7eed\u7684\u7a7a\u95f4&#xff0c;\u660e\u660e\u603b\u7a7a\u95f4\u591f&#xff0c;\u5374\u5206\u914d\u5931\u8d25&#xff0c;\u89e6\u53d1\u540e\u7eed\u7684\u5783\u573e\u56de\u6536&#xff0c;\u4e25\u91cd\u964d\u4f4e\u6548\u7387\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>3. \u590d\u5236\u7b97\u6cd5&#xff08;Copying&#xff09;&#xff1a;\u65b0\u751f\u4ee3\u7684\u201c\u6551\u661f\u201d<\/h4>\n<p>\u65e2\u7136\u6807\u8bb0\u6e05\u9664\u4f1a\u6709\u788e\u7247&#xff0c;\u90a3\u6211\u4eec\u628a\u5185\u5b58\u4e00\u5206\u4e3a\u4e8c&#xff0c;\u6bcf\u6b21\u53ea\u7528\u4e00\u534a&#xff0c;\u5982\u4f55&#xff1f;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041708-6a6438c4d8d4e.png\" \/><\/p>\n<li>\n<p>\u5212\u5206&#xff1a;\u628a\u5185\u5b58\u5206\u6210\u5927\u5c0f\u76f8\u7b49\u7684\u4e24\u5757 A \u548c B\u3002\u53ea\u4f7f\u7528 A\u3002<\/p>\n<\/li>\n<li>\n<p>\u56de\u6536\u65f6&#xff1a;\u628a A \u4e2d\u5b58\u6d3b\u7684\u5bf9\u8c61&#xff0c;\u4e00\u53e3\u6c14\u5168\u90e8\u590d\u5236\u5230 B \u4e2d\u3002\u7136\u540e\u76f4\u63a5\u628a A \u5168\u90e8\u6e05\u7a7a\u3002<\/p>\n<\/li>\n<li>\n<p>\u4ea4\u6362&#xff1a;\u4ea4\u6362 A \u548c B \u7684\u89d2\u8272&#xff0c;\u4e0b\u6b21\u53ea\u4f7f\u7528 B\u3002<\/p>\n<\/li>\n<ul>\n<li>\n<p>\u4f18\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u7edd\u5bf9\u65e0\u788e\u7247&#xff1a;\u5bf9\u8c61\u662f\u7d27\u5bc6\u590d\u5236\u5230\u65b0\u7a7a\u95f4\u7684&#xff0c;\u6392\u5217\u6574\u9f50\u3002<\/p>\n<\/li>\n<li>\n<p>\u6548\u7387\u6781\u9ad8&#xff1a;\u7279\u522b\u9002\u5408\u201c\u5783\u573e\u591a\u3001\u5b58\u6d3b\u5bf9\u8c61\u5c11\u201d\u7684\u573a\u666f\u3002\u9700\u8981\u62f7\u8d1d\u7684\u53ea\u6709\u90a3\u4e48\u51e0\u4e2a\u5e78\u5b58\u8005\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u81f4\u547d\u7f3a\u70b9&#xff1a;\u5185\u5b58\u5229\u7528\u7387\u4f4e&#xff0c;\u76f4\u63a5\u6253\u6298\u3002\u53ea\u80fd\u4f7f\u7528\u603b\u5185\u5b58\u7684\u4e00\u534a&#xff0c;\u53e6\u4e00\u534a\u603b\u662f\u95f2\u7f6e&#xff0c;\u5bf9\u5185\u5b58\u5f00\u9500\u592a\u5927\u3002<\/p>\n<\/li>\n<\/ul>\n<p>&#x1f449; \u5c0f\u8d34\u58eb&#xff1a;\u56e0\u4e3a\u5728\u65b0\u751f\u4ee3\u4e2d&#xff0c;90%\u7684\u5bf9\u8c61\u90fd\u4f1a\u201c\u671d\u751f\u5915\u706d\u201d&#xff08;\u6d3b\u4e0d\u8fc7\u7b2c\u4e00\u6b21\u56de\u6536&#xff09;&#xff0c;\u6240\u4ee5\u590d\u5236\u7b97\u6cd5\u5728\u65b0\u751f\u4ee3\u5927\u653e\u5f02\u5f69\u3002<\/p>\n<h4>4. \u6807\u8bb0\u538b\u7f29\u6cd5&#xff08;Mark-Compact&#xff09;&#xff1a;\u8001\u5e74\u4ee3\u7684\u201c\u7ec8\u6781\u6b66\u5668\u201d<\/h4>\n<p>\u90a3\u5982\u679c\u5728\u8001\u5e74\u4ee3&#xff08;\u5bf9\u8c61\u5b58\u6d3b\u7387\u9ad8&#xff09;&#xff0c;\u7528\u590d\u5236\u7b97\u6cd5\u5c82\u4e0d\u662f\u8981\u628a\u5927\u91cf\u7684\u5bf9\u8c61\u642c\u6765\u642c\u53bb&#xff0c;\u6210\u672c\u6781\u9ad8&#xff1f;\u4e8e\u662f&#xff0c;\u6807\u8bb0\u538b\u7f29\u6cd5\u5e94\u8fd0\u800c\u751f&#xff0c;\u5b83\u4e5f\u88ab\u79f0\u4e3a\u00a0Mark-Sweep-Compact&#xff08;\u6807\u8bb0-\u6e05\u9664-\u538b\u7f29&#xff09;\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041708-6a6438c4f00ea.png\" \/><\/p>\n<li>\n<p>\u6807\u8bb0&#xff1a;\u548c\u6807\u8bb0\u6e05\u9664\u4e00\u6837&#xff0c;\u5148\u627e\u51fa\u6240\u6709\u5b58\u6d3b\u5bf9\u8c61\u3002<\/p>\n<\/li>\n<li>\n<p>\u538b\u7f29&#xff08;\u5173\u952e&#xff09;&#xff1a;\u4e0d\u76f4\u63a5\u6e05\u9664\u5783\u573e\u3002\u800c\u662f\u5c06\u6240\u6709\u7684\u5b58\u6d3b\u5bf9\u8c61\u5f80\u5185\u5b58\u7684\u4e00\u7aef\u79fb\u52a8&#xff0c;\u6324\u5728\u4e00\u8d77\u3002<\/p>\n<\/li>\n<li>\n<p>\u6e05\u9664&#xff1a;\u6e05\u7406\u6389\u8fb9\u754c\u4ee5\u5916\u7684\u6240\u6709\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<\/li>\n<ul>\n<li>\n<p>\u4f18\u70b9&#xff1a;\u65e2\u89e3\u51b3\u4e86\u788e\u7247\u5316\u95ee\u9898&#xff0c;\u53c8\u4e0d\u9700\u8981\u50cf\u590d\u5236\u7b97\u6cd5\u90a3\u6837\u6d6a\u8d39\u4e00\u534a\u7684\u5185\u5b58\u3002<\/p>\n<\/li>\n<li>\n<p>\u7f3a\u70b9&#xff1a;\u79fb\u52a8\u5bf9\u8c61\u9700\u8981\u6682\u505c\u5e94\u7528\u7ebf\u7a0b&#xff08;Stop-The-World&#xff09;&#xff0c;\u5982\u679c\u5b58\u6d3b\u5bf9\u8c61\u592a\u591a&#xff0c;\u79fb\u52a8\u6210\u672c\u8f83\u9ad8\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e09\u3001 \u5b9e\u6218\u7ec4\u5408&#xff1a;\u5206\u4ee3\u7b97\u6cd5&#xff08;Generational Collection&#xff09;<\/h3>\n<p>\u65e2\u7136\u6bcf\u79cd\u7b97\u6cd5\u90fd\u6709\u4f18\u7f3a\u70b9&#xff0c;\u806a\u660e\u7684JVM\u8bbe\u8ba1\u8005\u63d0\u51fa\u4e86\u201c\u5206\u4ee3\u5047\u8bbe\u201d&#xff1a;\u201c\u7edd\u5927\u591a\u6570\u5bf9\u8c61\u90fd\u662f\u671d\u751f\u5915\u6b7b\u7684&#xff1b;\u71ac\u8fc7\u591a\u6b21\u56de\u6536\u7684\u5bf9\u8c61&#xff0c;\u5219\u5f88\u96be\u6b7b\u53bb\u3002\u201d<br \/>\n\u57fa\u4e8e\u8fd9\u4e2a\u5047\u8bbe&#xff0c;JVM\u5c06\u5806\u5185\u5b58\u5212\u5206\u4e3a\u65b0\u751f\u4ee3\u548c\u8001\u5e74\u4ee3&#xff0c;\u5206\u522b\u4f7f\u7528\u4e0d\u540c\u7684\u7b97\u6cd5\u3002<\/p>\n<h4>&#x1f4cd; \u65b0\u751f\u4ee3&#xff08;Young Generation&#xff09; &#8211; \u4f7f\u7528\u3010\u590d\u5236\u7b97\u6cd5\u3011<\/h4>\n<ul>\n<li>\n<p>\u7279\u70b9&#xff1a;\u5bf9\u8c61\u5b58\u6d3b\u7387\u6781\u4f4e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5185\u5b58\u5206\u914d&#xff1a;\u5e76\u4e0d\u662f\u7b80\u5355\u7684 1:1 \u5206\u5272\u3002\u4e3a\u4e86\u4f18\u5316\u7a7a\u95f4\u5229\u7528\u7387&#xff0c;JVM \u5c06\u65b0\u751f\u4ee3\u5212\u5206\u4e3a&#xff1a;<\/p>\n<ul>\n<li>\n<p>Eden&#xff08;\u4f0a\u7538\u56ed&#xff09;&#xff1a;\u5360 80%\u3002\u65b0\u5bf9\u8c61\u8bde\u751f\u5730\u3002<\/p>\n<\/li>\n<li>\n<p>Survivor 0 (From)&#xff1a;\u5360 10%\u3002<\/p>\n<\/li>\n<li>\n<p>Survivor 1 (To)&#xff1a;\u5360 10%\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u56de\u6536\u8fc7\u7a0b&#xff08;Minor GC&#xff09;&#xff1a;<\/p>\n<li>\n<p>\u56de\u6536\u65f6&#xff0c;Eden \u548c From \u533a\u4e2d\u7684\u5b58\u6d3b\u5bf9\u8c61&#xff0c;\u4f1a\u4e00\u80a1\u8111\u590d\u5236\u5230\u00a0To\u00a0\u533a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u5bf9\u8c61\u7279\u522b\u5927&#xff0c;\u6216\u8005 To \u533a\u6ee1\u4e86&#xff0c;\u5c31\u76f4\u63a5\u664b\u5347\u5230\u8001\u5e74\u4ee3\u3002<\/p>\n<\/li>\n<li>\n<p>\u6e05\u7406\u5b8c Eden \u548c From \u540e&#xff0c;\u4ea4\u6362\u00a0From \u548c To \u7684\u89d2\u8272\u3002<\/p>\n<\/li>\n<\/li>\n<li>\n<p>&#x1f4a1; \u4e3a\u4ec0\u4e48\u8fd9\u6837\u8bbe\u8ba1&#xff1f;\u00a0\u8fd9\u6837\u65e2\u4fdd\u7559\u4e86\u590d\u5236\u7b97\u6cd5\u201c\u65e0\u788e\u7247\u3001\u6548\u7387\u9ad8\u201d\u7684\u4f18\u70b9&#xff0c;\u53c8\u5c06\u7a7a\u95f4\u6d6a\u8d39\u4ece\u00a050%\u00a0\u964d\u4f4e\u5230\u4e86\u00a010%&#xff08;\u53ea\u6d6a\u8d39\u4e00\u4e2aSurvivor\u533a&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>&#x1f4cd; \u8001\u5e74\u4ee3&#xff08;Old Generation&#xff09; &#8211; \u4f7f\u7528\u3010\u6807\u8bb0\u538b\u7f29\u6cd5\u3011<\/h4>\n<ul>\n<li>\n<p>\u7279\u70b9&#xff1a;\u5b58\u6d3b\u7387\u9ad8&#xff0c;\u751f\u547d\u5468\u671f\u957f\u3002<\/p>\n<\/li>\n<li>\n<p>\u56de\u6536\u8fc7\u7a0b&#xff08;Major GC \/ Full GC&#xff09;&#xff1a;\u4f7f\u7528\u6807\u8bb0\u538b\u7f29\u6cd5&#xff0c;\u6548\u7387\u66f4\u9ad8&#xff0c;\u4f46\u540c\u65f6\u4ea7\u751f\u7684\u505c\u987f\u65f6\u95f4\u4e5f\u660e\u663e\u957f\u4e8e\u65b0\u751f\u4ee3\u56de\u6536\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>&#x1f4cd; \u51b7\u77e5\u8bc6&#xff1a;\u5361\u8868&#xff08;Card Table&#xff09; &#8211; \u89e3\u51b3\u8de8\u4ee3\u5f15\u7528\u6027\u80fd\u74f6\u9888<\/h4>\n<p>\u8001\u5e74\u4ee3\u7684\u5bf9\u8c61\u6709\u53ef\u80fd\u5f15\u7528\u65b0\u751f\u4ee3\u7684\u5bf9\u8c61\u3002\u5982\u679c\u5728\u65b0\u751f\u4ee3\u56de\u6536\u65f6&#xff0c;\u8981\u904d\u5386\u6574\u4e2a\u8001\u5e74\u4ee3\u53bb\u68c0\u67e5\u6709\u6ca1\u6709\u5f15\u7528&#xff0c;\u90a3\u901f\u5ea6\u6162\u5f97\u4e0d\u53ef\u60f3\u8c61\u3002<br \/>\nJVM \u4f7f\u7528\u4e86\u4e00\u4e2a\u5de7\u5999\u7684\u4f4d\u56fe\u6570\u636e\u7ed3\u6784\u2014\u2014\u5361\u8868&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041709-6a6438c52ff4d.png\" \/><\/p>\n<ul>\n<li>\n<p>\u5de5\u4f5c\u539f\u7406&#xff1a;\u5c06\u8001\u5e74\u4ee3\u5212\u5206\u6210\u8bb8\u591a 4KB \u7684\u5c0f\u5757\u3002\u5361\u8868\u4e2d\u7684\u4e00\u4e2a bit \u5c31\u4ee3\u8868\u8fd9\u5757 4KB \u533a\u57df\u3002<\/p>\n<ul>\n<li>\n<p>0&#xff1a;\u8868\u793a\u8fd9\u4e2a 4KB \u533a\u57df\u5185\u7684\u8001\u5e74\u4ee3\u5bf9\u8c61&#xff0c;\u6ca1\u6709\u4efb\u4f55\u4e00\u4e2a\u5f15\u7528\u4e86\u65b0\u751f\u4ee3\u5bf9\u8c61\u3002<\/p>\n<\/li>\n<li>\n<p>1&#xff1a;\u8868\u793a\u8fd9\u4e2a 4KB \u533a\u57df\u5185&#xff0c;\u81f3\u5c11\u6709\u4e00\u4e2a\u5bf9\u8c61\u5f15\u7528\u4e86\u65b0\u751f\u4ee3\u5bf9\u8c61\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6548\u679c&#xff1a;\u5728\u65b0\u751f\u4ee3 GC \u65f6&#xff0c;\u53ea\u9700\u67e5\u770b\u5361\u8868\u3002\u5982\u679c\u5361\u8868\u4f4d\u662f 0&#xff0c;\u76f4\u63a5\u8df3\u8fc7\u8be5\u533a\u57df\u3002\u8fd9\u5927\u5927\u51cf\u5c11\u4e86\u626b\u63cf\u5bf9\u8c61\u7684\u65f6\u95f4&#xff0c;\u52a0\u901f\u4e86\u5783\u573e\u56de\u6536\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u56db\u3001 \u73b0\u4ee3\u8d8b\u52bf&#xff1a;\u5206\u533a\u7b97\u6cd5&#xff08;G1\u6536\u96c6\u5668\u7684\u6838\u5fc3&#xff09;<\/h3>\n<p>\u8bf4\u5b8c\u5206\u4ee3&#xff0c;\u6211\u4eec\u518d\u6765\u770b\u4e00\u79cd\u8fd1\u5e74\u6765\u975e\u5e38\u706b\u70ed\u7684\u601d\u60f3\u2014\u2014\u5206\u533a\u7b97\u6cd5&#xff08;\u4e3b\u8981\u5e94\u7528\u4e8e G1 \u5783\u573e\u6536\u96c6\u5668&#xff09;\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260725041709-6a6438c56677d.png\" \/><\/p>\n<ul>\n<li>\n<p>\u75db\u70b9&#xff1a;\u5206\u4ee3\u56de\u6536\u4e2d&#xff0c;\u4e00\u65e6\u89e6\u53d1 Full GC&#xff08;\u9488\u5bf9\u6574\u4e2a\u8001\u5e74\u4ee3\/\u5806&#xff09;&#xff0c;\u5982\u679c\u5185\u5b58\u5de8\u5927&#xff0c;\u505c\u987f\u65f6\u95f4&#xff08;STW&#xff09;\u4f1a\u975e\u5e38\u4e45&#xff0c;\u4e25\u91cd\u5f71\u54cd\u4e1a\u52a1\u3002<\/p>\n<\/li>\n<li>\n<p>\u89e3\u51b3\u529e\u6cd5&#xff1a;\u653e\u5f03\u7269\u7406\u4e0a\u7684\u65b0\u751f\u4ee3\/\u8001\u5e74\u4ee3\u5212\u5206&#xff0c;\u628a\u6574\u4e2a\u5806\u7a7a\u95f4\u5212\u5206\u6210\u82e5\u5e72\u5927\u5c0f\u76f8\u7b49\u7684\u201c\u5c0f\u533a\u95f4\u201d&#xff08;Region&#xff09;\u3002\u6bcf\u4e00\u4e2a\u5c0f\u533a\u95f4\u90fd\u53ef\u4ee5\u72ec\u7acb\u4f7f\u7528\u3001\u72ec\u7acb\u56de\u6536\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f18\u52bf&#xff1a;\u7531\u4e8e\u533a\u95f4\u5f88\u5c0f&#xff0c;GC \u65f6\u4e0d\u9700\u8981\u56de\u6536\u6574\u4e2a\u5806&#xff0c;\u800c\u662f\u6839\u636e\u76ee\u6807\u505c\u987f\u65f6\u95f4&#xff0c;\u6bcf\u6b21\u56de\u6536\u4e00\u90e8\u5206&#xff08;\u6bd4\u5982 20 \u4e2a&#xff09;\u533a\u95f4\u3002\u8fd9\u5c31\u628a\u539f\u6765\u51e0\u79d2\u949f\u7684\u5927\u505c\u987f&#xff0c;\u62c6\u89e3\u6210\u4e86\u51e0\u5341\u6beb\u79d2\u7684\u5c0f\u505c\u987f&#xff0c;\u907f\u514d\u4e86\u201c\u5168\u5c4b\u5927\u626b\u9664\u201d\u5e26\u6765\u7684\u4e1a\u52a1\u963b\u585e\u3002<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>\u4e94\u3001 \u6280\u672f\u603b\u7ed3\u4e0e\u9762\u8bd5\u907f\u5751\u6307\u5357<\/h3>\n<table>\n<tr>\u7b97\u6cd5\u540d\u79f0\u6838\u5fc3\u64cd\u4f5c\u4f18\u70b9\u7f3a\u70b9\u9002\u7528\u533a\u57df<\/tr>\n<tbody>\n<tr>\n<td>\u6807\u8bb0\u6e05\u9664<\/td>\n<td>\u6807\u8bb0&#043;\u6e05\u9664\u5783\u573e<\/td>\n<td>\u7b80\u5355\u3001\u7a7a\u95f4\u5229\u7528\u7387\u9ad8<\/td>\n<td>\u4ea7\u751f\u5185\u5b58\u788e\u7247<\/td>\n<td>\u8001\u5e74\u4ee3&#xff08;CMS\u6536\u96c6\u5668&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u590d\u5236\u7b97\u6cd5<\/td>\n<td>\u5b58\u6d3b\u5bf9\u8c61\u590d\u5236\u5230\u65b0\u7a7a\u95f4<\/td>\n<td>\u65e0\u788e\u7247\u3001\u901f\u5ea6\u5feb<\/td>\n<td>\u7a7a\u95f4\u6d6a\u8d39\u4e25\u91cd&#xff08;\u9700\u53cc\u500d\u7a7a\u95f4&#xff09;<\/td>\n<td>\u65b0\u751f\u4ee3&#xff08;Eden\/Survivor&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u6807\u8bb0\u538b\u7f29<\/td>\n<td>\u6807\u8bb0&#043;\u538b\u7f29\u5b58\u6d3b\u5bf9\u8c61<\/td>\n<td>\u65e0\u788e\u7247\u3001\u7a7a\u95f4\u5229\u7528\u7387\u9ad8<\/td>\n<td>\u79fb\u52a8\u5bf9\u8c61\u8017\u65f6&#xff0c;\u505c\u987f\u65f6\u95f4\u957f<\/td>\n<td>\u8001\u5e74\u4ee3<\/td>\n<\/tr>\n<tr>\n<td>\u5206\u4ee3\u7b97\u6cd5<\/td>\n<td>\u7ed3\u5408\u5404\u7b97\u6cd5\u4f18\u70b9<\/td>\n<td>\u9488\u5bf9\u6027\u5f3a&#xff0c;\u6574\u4f53\u6548\u7387\u6700\u4f73<\/td>\n<td>\u9700\u5904\u7406\u8de8\u4ee3\u5f15\u7528&#xff08;\u5361\u8868&#xff09;<\/td>\n<td>\u6574\u5806&#xff08;\u4e3b\u6d41\u7684\u5b8f\u89c2\u7b56\u7565&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u5206\u533a\u7b97\u6cd5<\/td>\n<td>\u5206\u5c0f\u5757\u72ec\u7acb\u56de\u6536<\/td>\n<td>\u63a7\u5236\u505c\u987f\u65f6\u95f4\u7cbe\u51c6<\/td>\n<td>\u5b9e\u73b0\u96be\u5ea6\u9ad8<\/td>\n<td>G1\/Garbage-First \u6536\u96c6\u5668<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001 \u5783\u573e\u56de\u6536\u7684\u6838\u5fc3\u601d\u60f3&#xff1a;\u53ef\u8fbe\u6027\u5206\u6790\u5783\u573e\u56de\u6536&#xff08;GC&#xff0c;Garbage Collection&#xff09;\u5230\u5e95\u662f\u5728\u56de\u6536\u4ec0\u4e48&#xff1f;\u5b83\u7684\u57fa\u672c\u601d\u60f3\u53ef\u4ee5\u5f52\u7eb3\u4e3a\u4e00\u53e5\u8bdd&#xff1a;\u8003\u5bdf\u6bcf\u4e00\u4e2a\u5bf9\u8c61\u7684\u201c\u53ef\u89e6\u53ca\u6027\u201d\u3002\u5982\u4f55\u5224\u65ad\u201c\u6d3b\u201d\u7684&#xff1f;\u00a0JVM\u8bbe\u5b9a\u4e86\u4e00\u4e9b\u201c\u6839\u5bf9\u8c61&#xff08;GC Roots&#xff09;\u201d&#xff08;\u5982\u6808\u5e27\u4e2d\u7684\u672c\u5730\u53d8\u91cf\u3001\u9759\u6001\u53d8\u91cf\u7b49&#xff09;\u3002\u4ece\u8fd9\u4e9b\u6839\u8282\u70b9\u51fa\u53d1&#xff0c;\u53ea\u8981\u80fd\u591f\u987a\u7740\u5f15\u7528\u94fe\u4e00\u8def\u8ffd<\/p>\n","protected":false},"author":2,"featured_media":82760,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,426,427],"topic":[],"class_list":["post-82767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-java","tag-jvm","tag-427"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java\u865a\u62df\u673a\uff1a\u5783\u573e\u56de\u6536\u7b97\u6cd5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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