{"id":11189,"date":"2023-11-28T21:54:40","date_gmt":"2023-11-28T13:54:40","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11189"},"modified":"2023-12-08T11:07:15","modified_gmt":"2023-12-08T03:07:15","slug":"jvm-zhongsafepoint-shi-shen-me","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhongsafepoint-shi-shen-me\/","title":{"rendered":"JVM\u4e2dsafepoint \u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

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    \n
  1. \n\u5168\u5c40\u6027\u64cd\u4f5c\uff1a<\/strong> \u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6709\u4e9b\u64cd\u4f5c\u9700\u8981\u5168\u5c40\u4e00\u81f4\u6027\uff0c\u4f8b\u5982\u5783\u573e\u56de\u6536\u3001\u7ebf\u7a0b\u6808\u7684dump\u3001\u7ebf\u7a0b\u6302\u8d77\u7b49\u3002\u5728\u8fd9\u4e9b\u64cd\u4f5c\u6267\u884c\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u6240\u6709\u7ebf\u7a0b\u90fd\u6682\u505c\uff0c\u4ee5\u907f\u514d\u5728\u64cd\u4f5c\u6267\u884c\u671f\u95f4\u53d1\u751f\u4e0d\u4e00\u81f4\u7684\u72b6\u6001\u3002\n<\/li>\n
  2. \n\u6682\u505c\u6240\u6709\u7ebf\u7a0b\uff1a<\/strong> \u5f53JVM\u8981\u8fdb\u884c\u5168\u5c40\u6027\u64cd\u4f5c\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1safepoint\uff0c\u6682\u505c\u6240\u6709\u7ebf\u7a0b\u3002\u5728safepoint\u4e0a\uff0c\u6240\u6709\u7ebf\u7a0b\u90fd\u88ab\u6302\u8d77\uff0c\u7b49\u5f85\u5168\u5c40\u64cd\u4f5c\u5b8c\u6210\u540e\u518d\u7ee7\u7eed\u6267\u884c\u3002\n<\/li>\n
  3. \nsafepoint\u68c0\u6d4b\uff1a<\/strong> JVM\u901a\u8fc7\u5468\u671f\u6027\u8f6e\u8be2\u68c0\u6d4b\u6240\u6709\u7ebf\u7a0b\u662f\u5426\u5230\u8fbe\u4e86\u5b89\u5168\u70b9\u3002\u8fd9\u901a\u5e38\u662f\u901a\u8fc7\u8ba9\u7ebf\u7a0b\u4e3b\u52a8\u8f6e\u8be2\u68c0\u67e5\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u7684\u3002\n<\/li>\n
  4. \n\u5b89\u5168\u70b9\u7684\u4f4d\u7f6e\uff1a<\/strong> \u5b89\u5168\u70b9\u7684\u4f4d\u7f6e\u5e76\u4e0d\u662f\u56fa\u5b9a\u7684\uff0c\u5b83\u53ef\u4ee5\u5728\u65b9\u6cd5\u8c03\u7528\u3001\u5faa\u73af\u8df3\u8f6c\u7b49\u4f4d\u7f6e\u3002JVM\u901a\u8fc7\u63d2\u5165\u7279\u6b8a\u7684\u5b57\u8282\u7801\uff08\u4f8b\u5982polling<\/code>\u5b57\u8282\u7801\uff09\u6216\u8005\u4f7f\u7528\u7279\u6b8a\u7684\u6307\u4ee4\u6765\u6807\u8bb0\u5b89\u5168\u70b9\u4f4d\u7f6e\u3002\n<\/li>\n
  5. \n\u7528\u6237\u4ee3\u7801\u6682\u505c\uff1a<\/strong> \u5728safepoint\u671f\u95f4\uff0c\u7528\u6237\u4ee3\u7801\u7684\u6267\u884c\u4f1a\u88ab\u6682\u505c\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u7684\u6682\u505c\u548c\u5ef6\u8fdf\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u548c\u8c03\u4f18Java\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u9700\u8981\u8003\u8651safepoint\u7684\u5f71\u54cd\u3002\n<\/li>\n<\/ol>\n

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