{"id":2866,"date":"2018-06-16T17:13:27","date_gmt":"2018-06-16T09:13:27","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=2866"},"modified":"2018-06-16T17:13:27","modified_gmt":"2018-06-16T09:13:27","slug":"java-jvm%e5%86%85%e5%ad%98%ef%bc%88%e5%8f%82%e6%95%b0%ef%bc%89%e9%85%8d%e7%bd%ae%e6%95%99%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=2866","title":{"rendered":"Java JVM\u5185\u5b58\uff08\u53c2\u6570\uff09\u914d\u7f6e\u6559\u7a0b"},"content":{"rendered":"<p>\n\t\u4e0a\u4e00\u7bc7\u6211\u8be6\u7ec6\u7684\u4ecb\u7ecd\u4e86Java\u4e2d\u4e09\u79cd\u5e38\u89c1\u7684\u5185\u5b58\u6ea2\u51fa\u5f02\u5e38\u3002\u672c\u6587\u7ed3\u5408\uff1aOutOfMemoryError\uff1a Java heap space &nbsp;\u5806\u6ea2\u51fa\uff1bOutOfMemoryError\uff1a PermGen space &nbsp; \u975e\u5806\u6ea2\u51fa\uff08\u6c38\u4e45\u4fdd\u5b58\u533a\u57df\u6ea2\u51fa\uff09\uff1bOutOfMemoryError\uff1a unable to create new native thread. &nbsp; \u65e0\u6cd5\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\u3002\u8fd9\u4e09\u79cd\u5185\u5b58\u6ea2\u51fa\u73b0\u8c61\u6765\u8bf4\u8bf4\u5982\u4f55\u914d\u7f6e JVM \u7684\u5185\u5b58\u53c2\u6570\u3002\n<\/p>\n<p>\n\tJVM\u5185\u5b58\u5206\u914d\u8bbe\u7f6e\u7684 \u5e38\u7528\u53c2\u6570\u5982\u4e0b\uff1a\n<\/p>\n<ul>\n<li>\n\t\t-Xmx &nbsp; &nbsp;Java Heap\u6700\u5927\u503c\uff0c\u9ed8\u8ba4\u503c\u4e3a\u7269\u7406\u5185\u5b58\u76841\/4\uff1b\n\t<\/li>\n<li>\n\t\t-Xms &nbsp; &nbsp;Java Heap\u521d\u59cb\u503c\uff0cServer\u7aefJVM\u6700\u597d\u5c06-Xms\u548c-Xmx\u8bbe\u4e3a\u76f8\u540c\u503c\uff0c\u5f00\u53d1\u6d4b\u8bd5\u673aJVM\u53ef\u4ee5\u4fdd\u7559\u9ed8\u8ba4\u503c\uff1b\n\t<\/li>\n<li>\n\t\t-Xss &nbsp; &nbsp; &nbsp;\u6bcf\u4e2a\u7ebf\u7a0b\u7684Stack\u5927\u5c0f\uff0c\u4e0d\u719f\u6089\u6700\u597d\u4fdd\u7559\u9ed8\u8ba4\u503c\uff1b\n\t<\/li>\n<li>\n\t\t-XX:MaxPermSize\uff1a\u8bbe\u5b9a\u6700\u5927\u5185\u5b58\u7684\u6c38\u4e45\u4fdd\u5b58\u533a\u57df\uff1b\n\t<\/li>\n<li>\n\t\t-XX:PermSize\uff1a\u8bbe\u5b9a\u5185\u5b58\u7684\u6c38\u4e45\u4fdd\u5b58\u533a\u57df\uff1b\n\t<\/li>\n<li>\n\t\t-XX:NewSize\uff1a\u8bbe\u7f6eJVM\u5806\u7684&lsquo;\u65b0\u751f\u4ee3&rsquo;\u7684\u9ed8\u8ba4\u5927\u5c0f\uff1b\n\t<\/li>\n<li>\n\t\t-XX:MaxNewSize\uff1a\u8bbe\u7f6eJVM\u5806\u7684&lsquo;\u65b0\u751f\u4ee3&rsquo;\u7684\u6700\u5927\u5927\u5c0f\uff1b&nbsp;\n\t<\/li>\n<\/ul>\n<h2>\n\t\u5982\u4f55\u8bbe\u7f6eJVM\u7684\u5185\u5b58\u5206\u914d<br \/>\n<\/h2>\n<p>\n\t\u5f53\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e0b\u542f\u52a8\u5e76\u4f7f\u7528JVM\u65f6\uff08\u53ea\u5bf9\u5f53\u524d\u8fd0\u884c\u7684\u7c7bTest\u751f\u6548\uff09\uff1a\n<\/p>\n<pre class=\"brush:java;\">\r\njava -Xmx128m -Xms64m -Xss16m Test<\/pre>\n<p>\n\t\u5f53\u5728\u96c6\u6210\u5f00\u53d1\u73af\u5883\u4e0b\uff08\u5982eclipse\uff09\u542f\u52a8\u5e76\u4f7f\u7528JVM\u65f6\uff1a\n<\/p>\n<ul>\n<li>\n<p>\n\t\t\t\u5728eclipse\u6839\u76ee\u5f55\u4e0b\u6253\u5f00eclipse.ini\uff0c\u9ed8\u8ba4\u5185\u5bb9\u4e3a\uff08\u8fd9\u91cc\u8bbe\u7f6e\u7684\u662f\u8fd0\u884c\u5f53\u524d\u5f00\u53d1\u5de5\u5177\u7684JVM\u5185\u5b58\u5206\u914d\uff09\uff1a &nbsp;-vmargs -Xms40m -Xmx256m -vmargs\u8868\u793a\u4ee5\u4e0b\u4e3a\u865a\u62df\u673a\u8bbe\u7f6e\u53c2\u6570\uff0c\u53ef\u4fee\u6539\u5176\u4e2d\u7684\u53c2\u6570\u503c\uff0c\u4e5f\u53ef\u6dfb\u52a0-Xmn\uff0c-Xss\uff0c\u53e6\u5916\uff0ceclipse.ini\u5185\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u975e &nbsp; \u5806\u5185\u5b58\uff0c\u5982\uff1a-XX:PermSize=56m\uff0c-XX:MaxPermSize=128m\u3002\n\t\t<\/p>\n<\/li>\n<li>\n<p>\n\t\t\t\u6253\u5f00eclipse\uff0d\u7a97\u53e3\uff0d\u9996\u9009\u9879\uff0dJava\uff0d\u5df2\u5b89\u88c5\u7684JRE\uff08\u5bf9\u5728\u5f53\u524d\u5f00\u53d1\u73af\u5883\u4e2d\u8fd0\u884c\u7684java\u7a0b\u5e8f\u7686\u751f\u6548\uff09 &nbsp;\u7f16\u8f91\u5f53\u524d\u4f7f\u7528\u7684JRE\uff0c\u5728\u7f3a\u7701VM\u53c2\u6570\u4e2d\u8f93\u5165\uff1a-Xmx128m -Xms64m -Xmn32m &ndash;Xss16m\u3002\n\t\t<\/p>\n<\/li>\n<li>\n<p>\n\t\t\t\u6253\u5f00eclipse\uff0d\u8fd0\u884c\uff0d\u8fd0\u884c\uff0dJava\u5e94\u7528\u7a0b\u5e8f\uff08\u53ea\u5bf9\u6240\u8bbe\u7f6e\u7684java\u7c7b\u751f\u6548\uff09 &nbsp;\u9009\u5b9a\u9700\u8bbe\u7f6e\u5185\u5b58\u5206\u914d\u7684\u7c7b\uff0d\u81ea\u53d8\u91cf\uff0c\u5728VM\u81ea\u53d8\u91cf\u4e2d\u8f93\u5165\uff1a-Xmx128m -Xms64m -Xmn32m -Xss16m &nbsp;\u6ce8\uff1a\u5982\u679c\u5728\u540c\u4e00\u5f00\u53d1\u73af\u5883\u4e2d\u540c\u65f6\u8fdb\u884c\u4e86b\u548cc\u8bbe\u7f6e\uff0c\u5219b\u8bbe\u7f6e\u751f\u6548\uff0cc\u8bbe\u7f6e\u65e0\u6548\uff0c\u5982\uff1a &nbsp;\u5f00\u53d1\u73af\u5883\u7684\u8bbe\u7f6e\u4e3a\uff1a-Xmx256m\uff0c\u800c\u7c7bTest\u7684\u8bbe\u7f6e\u4e3a\uff1a-Xmx128m -Xms64m\uff0c\u5219\u8fd0\u884cTest\u65f6\u751f\u6548\u7684\u8bbe\u7f6e\u4e3a\uff1a &nbsp;-Xmx256m -Xms64m\u3002\n\t\t<\/p>\n<\/li>\n<\/ul>\n<p>\n\t\u5b66\u4f1a JVM \u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4f60\u6700\u4f4e\u5e94\u8be5\u662f\u4e00\u4e2a\u9ad8\u7ea7\u5de5\u7a0b\u5e08\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=2866\">Java JVM\u5185\u5b58\uff08\u53c2\u6570\uff09\u914d\u7f6e\u6559\u7a0b<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4e00\u7bc7\u6211\u8be6\u7ec6\u7684\u4ecb\u7ecd\u4e86Java\u4e2d\u4e09\u79cd\u5e38\u89c1\u7684\u5185\u5b58\u6ea2\u51fa\u5f02\u5e38\u3002\u672c\u6587\u7ed3\u5408\uff1aOutOfMemoryError\uff1a Java  [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[787,328,731,1647,263],"class_list":["post-2866","post","type-post","status-publish","format-standard","hentry","category-java","tag-eclipse","tag-gc","tag-jvm","tag-substring"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2866"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2866\/revisions"}],"predecessor-version":[{"id":2867,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2866\/revisions\/2867"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}