{"id":10808,"date":"2023-11-28T21:44:11","date_gmt":"2023-11-28T13:44:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10808"},"modified":"2023-12-07T14:58:57","modified_gmt":"2023-12-07T06:58:57","slug":"jvm-zhong-dui-heapxian-cheng-gong-xiang-yun-xing-s","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhong-dui-heapxian-cheng-gong-xiang-yun-xing-s\/","title":{"rendered":"JVM\u4e2d\u5806\uff08Heap-\u7ebf\u7a0b\u5171\u4eab\uff09\u8fd0\u884c\u65f6\u6570\u636e\u533a\uff1f"},"content":{"rendered":"

\u5728Java\u865a\u62df\u673a\uff08JVM\uff09\u4e2d\uff0c\u5806\uff08Heap\uff09\u662f\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u5b9e\u4f8b\u3002\u5806\u662f\u6240\u6709\u7ebf\u7a0b\u5171\u4eab\u7684\u5185\u5b58\u533a\u57df\uff0c\u7528\u4e8e\u5b58\u50a8Java\u7a0b\u5e8f\u8fd0\u884c\u65f6\u521b\u5efa\u7684\u5bf9\u8c61\u548c\u6570\u7ec4\u3002\u5806\u7684\u7279\u70b9\u5305\u62ec\u52a8\u6001\u5206\u914d\u548c\u5783\u573e\u56de\u6536\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5806\u7684\u4e3b\u8981\u7279\u5f81\u548c\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u76f8\u5173\u4fe1\u606f\uff1a<\/p>\n

    \n
  1. \n\u52a8\u6001\u5206\u914d\uff1a<\/strong> \u5806\u7684\u5185\u5b58\u7a7a\u95f4\u662f\u5728JVM\u542f\u52a8\u65f6\u52a8\u6001\u5206\u914d\u7684\uff0c\u5e76\u4e14\u5b83\u7684\u5927\u5c0f\u53ef\u4ee5\u901a\u8fc7JVM\u542f\u52a8\u53c2\u6570\u8fdb\u884c\u8c03\u6574\u3002\u5806\u5185\u5b58\u7684\u5927\u5c0f\u76f4\u63a5\u5f71\u54cd\u7740\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u8fd0\u884c\u65f6\u7684\u884c\u4e3a\u3002\n<\/li>\n
  2. \n\u5b58\u50a8\u5bf9\u8c61\uff1a<\/strong> \u5806\u4e3b\u8981\u7528\u4e8e\u5b58\u50a8Java\u7a0b\u5e8f\u8fd0\u884c\u65f6\u521b\u5efa\u7684\u5bf9\u8c61\u5b9e\u4f8b\u548c\u6570\u7ec4\u3002\u5f53\u901a\u8fc7new<\/code>\u5173\u952e\u5b57\u521b\u5efa\u5bf9\u8c61\u65f6\uff0c\u5bf9\u8c61\u4f1a\u88ab\u5206\u914d\u5728\u5806\u4e0a\u3002\n<\/li>\n
  3. \n\u5783\u573e\u56de\u6536\uff1a<\/strong> \u7531\u4e8e\u5806\u5b58\u50a8\u7684\u5bf9\u8c61\u662f\u52a8\u6001\u5206\u914d\u7684\uff0c\u800c\u4e14\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u4e0d\u5bb9\u6613\u9884\u6d4b\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u5783\u573e\u56de\u6536\u6765\u91ca\u653e\u4e0d\u518d\u88ab\u5f15\u7528\u7684\u5bf9\u8c61\uff0c\u4ee5\u4fbf\u91cd\u65b0\u5229\u7528\u5806\u7a7a\u95f4\u3002\n<\/li>\n
  4. \n\u5206\u4ee3\u7ed3\u6784\uff1a<\/strong> \u5806\u901a\u5e38\u88ab\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u4ee3\uff08Generation\uff09\uff0c\u4e3b\u8981\u5305\u62ec\u65b0\u751f\u4ee3\uff08Young Generation\uff09\u3001\u8001\u5e74\u4ee3\uff08Old Generation\uff09\u548c\u6301\u4e45\u4ee3\uff08PermGen\u6216Metaspace\uff09\u3002\u8fd9\u79cd\u5206\u4ee3\u7ed3\u6784\u6709\u52a9\u4e8e\u5b9e\u73b0\u9ad8\u6548\u7684\u5783\u573e\u56de\u6536\u7b97\u6cd5\uff0c\u4f8b\u5982\uff0c\u65b0\u751f\u4ee3\u4f7f\u7528\u590d\u5236\u7b97\u6cd5\uff0c\u8001\u5e74\u4ee3\u4f7f\u7528\u6807\u8bb0-\u6e05\u9664\u6216\u6807\u8bb0-\u6574\u7406\u7b97\u6cd5\u3002\n<\/li>\n
  5. \nOutOfMemoryError\uff1a<\/strong> \u7531\u4e8e\u5806\u662f\u6709\u9650\u7684\uff0c\u5f53\u5806\u7a7a\u95f4\u4e0d\u8db3\u65f6\uff0c\u5c31\u4f1a\u629b\u51faOutOfMemoryError<\/code>\u3002\u8fd9\u53ef\u80fd\u662f\u56e0\u4e3a\u7a0b\u5e8f\u521b\u5efa\u4e86\u5927\u91cf\u7684\u5bf9\u8c61\uff0c\u4f46\u6ca1\u6709\u53ca\u65f6\u91ca\u653e\uff0c\u5bfc\u81f4\u5806\u7a7a\u95f4\u88ab\u8017\u5c3d\u3002\n<\/li>\n
  6. \nJVM\u53c2\u6570\u8bbe\u7f6e\uff1a<\/strong> \u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7JVM\u542f\u52a8\u53c2\u6570\u6765\u8c03\u6574\u5806\u7684\u5927\u5c0f\uff0c\u5305\u62ec\u65b0\u751f\u4ee3\u548c\u8001\u5e74\u4ee3\u7684\u5206\u914d\u6bd4\u4f8b\u7b49\u3002\u5e38\u89c1\u7684\u53c2\u6570\u5305\u62ec-Xms<\/code>\uff08\u521d\u59cb\u5806\u5927\u5c0f\uff09\u3001-Xmx<\/code>\uff08\u6700\u5927\u5806\u5927\u5c0f\uff09\u3001-XX:NewSize<\/code>\uff08\u65b0\u751f\u4ee3\u5927\u5c0f\uff09\u7b49\u3002\n<\/li>\n<\/ol>\n
    java -Xms256m -Xmx512m -XX:NewSize=128m -jar your-application.jar\n<\/code><\/pre>\n
    \u603b\u4f53\u800c\u8a00\uff0c\u5806\u662fJava\u7a0b\u5e8f\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206\uff0c\u5bf9\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u5185\u5b58\u7ba1\u7406\u8d77\u7740\u5173\u952e\u7684\u4f5c\u7528\u3002\u7406\u89e3\u5806\u7684\u7279\u6027\u548c\u8fd0\u884c\u65f6\u884c\u4e3a\u6709\u52a9\u4e8e\u4f18\u5316\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u907f\u514d\u5185\u5b58\u76f8\u5173\u7684\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728Java\u865a\u62df\u673a\uff08JVM\uff09\u4e2d\uff0c\u5806\uff08Heap\uff09\u662f\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u5b9e\u4f8b\u3002\u5806\u662f\u6240\u6709\u7ebf\u7a0b\u5171 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[],"class_list":["post-10808","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=10808"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10808\/revisions"}],"predecessor-version":[{"id":16900,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10808\/revisions\/16900"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10808"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}