{"id":203332,"date":"2025-05-22T10:30:57","date_gmt":"2025-05-22T02:30:57","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203332\/"},"modified":"2025-05-22T10:30:57","modified_gmt":"2025-05-22T02:30:57","slug":"jvm-%e5%86%85%e5%ad%98%e5%8d%a0%e7%94%a8%e4%b8%ba%e4%bd%95%e4%bc%9a%e5%81%9c%e6%ad%a2%e5%a2%9e%e5%8a%a0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203332\/","title":{"rendered":"JVM \u5185\u5b58\u5360\u7528\u4e3a\u4f55\u4f1a\u505c\u6b62\u589e\u52a0\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>JVM \u5185\u5b58\u5360\u7528\u4e3a\u4f55\u4f1a\u505c\u6b62\u589e\u52a0\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJVM \u5185\u5b58\u5360\u7528\u4e3a\u4f55\u4f1a\u505c\u6b62\u589e\u52a0\uff1f\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241105\/1730775093672988359bd8d.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>JVM \u5185\u5b58\u5360\u7528\u4e0a\u9650\u63a2\u8ba8<\/strong><\/p>\n<p>\u95ee\u9898\u63cf\u8ff0\uff1a<\/p>\n<p>\u4e00\u4f4d\u5f00\u53d1\u8005\u4f7f\u752812G \u5185\u5b58JVM \u8fdb\u884c\u6d4b\u8bd5\uff0c\u5f53\u751f\u6210100 \u4e07\u6761\u6570\u636e\u540e\uff0c\u53d1\u73b0\u5185\u5b58\u5360\u7528\u4e0a\u5347\u523010G \u65f6\u4e0d\u518d\u589e\u957f\uff0c\u63a7\u5236\u53f0\u663e\u793a\u7684\u6570\u636e\u751f\u6210\u901f\u5ea6\u4e5f\u663e\u7740\u653e\u7f13\u3002\u5373\u4f7f\u6b64\u65f6\u8fd8\u6709 2G \u7a7a\u95f2\u5185\u5b58\uff0c\u4f46\u5185\u5b58\u5360\u7528\u7387\u5374\u4e0d\u518d\u589e\u52a0\u3002 <\/p>\n<p>\u539f\u56e0\u5206\u6790\uff1a<\/p>\n<p>JVM \u5bf9\u4e8e\u5185\u5b58\u5360\u7528\u5b58\u5728\u9650\u5236\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u521d\u59cb\u5185\u5b58\u5360\u7528\u4e3a\u7269\u7406\u5185\u5b58\u7684\u6700\u5c0f 1\/64\uff0c\u6700\u5927\u4e3a 1\/4\u3002\u7136\u800c\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e -Xms \u548c -Xmx \u9009\u9879\u6765\u4fee\u6539\u6700\u5c0f\u548c\u6700\u5927\u5185\u5b58\u5360\u7528\u503c\u3002\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p>[Image of Java memory settings options]<\/p>\n<p>\u540c\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u548c JVM \u81ea\u8eab\u4e5f\u4e0d\u4f1a\u5141\u8bb8\u5185\u5b58\u88ab\u5b8c\u5168\u5360\u6ee1\u3002\u5f53\u5185\u5b58\u5360\u7528\u63a5\u8fd1\u4e0a\u7ebf\u65f6\uff0cJVM \u4f1a\u89e6\u53d1\u5783\u573e\u56de\u6536 (GC) \u673a\u5236\uff0c\u4ee5\u91ca\u653e\u672a\u4f7f\u7528\u7684\u5bf9\u8c61\uff0c\u4ece\u800c\u817e\u51fa\u66f4\u591a\u53ef\u7528\u5185\u5b58\u3002 <\/p>\n<p>\u56e0\u6b64\uff0c\u5728\u7ed9\u5b9a\u60c5\u51b5\u4e0b\uff0cJVM \u5185\u5b58\u5360\u7528\u4e0d\u518d\u589e\u52a0\u7684\u539f\u56e0\u53ef\u80fd\u662f\uff1a<\/p>\n<ul>\n<li><strong>JVM \u5185\u5b58\u5360\u7528\u8fbe\u5230\u4e0a\u9650\uff1a<\/strong>\u8bbe\u7f6e\u7684-Xmx\u503c\u9650\u5236\u4e86JVM \u6700\u5927\u5185\u5b58\u5360\u7528\u3002 <\/li>\n<li><strong>\u89e6\u53d1 GC\uff1a<\/strong>\u5185\u5b58\u5360\u7528\u63a5\u8fd1\u4e0a\u9650\u65f6\uff0cJVM \u89e6\u53d1\u4e86 GC\uff0c\u56de\u6536\u4e86\u672a\u4f7f\u7528\u7684\u5bf9\u8c61\uff0c\u91ca\u653e\u4e86\u5185\u5b58\u7a7a\u95f4\u3002 <\/li>\n<\/ul>\n<p>\u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n<p>\u5982\u679c\u9700\u8981\u589e\u52a0 JVM \u5185\u5b58\u5360\u7528\u4e0a\u9650\uff0c\u53ef\u4ee5\u8c03\u6574 -Xmx \u8bbe\u7f6e\u3002\u4e0d\u8fc7\uff0c \u0441\u043b\u0435\u0434\u0443\u0435\u0442\u6ce8\u610f\uff0c\u5c06 -Xmx \u8bbe\u7f6e\u5f97\u592a\u9ad8\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u95ee\u9898\u3002 <\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aJVM \u5185\u5b58\u5360\u7528\u4e3a\u4f55\u4f1a\u505c\u6b62\u589e\u52a0\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JVM 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