{"id":1131,"date":"2019-01-31T14:19:19","date_gmt":"2019-01-31T06:19:19","guid":{"rendered":"http:\/\/van-yzt.com\/?p=1131"},"modified":"2019-01-31T14:23:19","modified_gmt":"2019-01-31T06:23:19","slug":"java%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5","status":"publish","type":"post","link":"https:\/\/huzi-baozi.com\/?p=1131","title":{"rendered":"Java\u95ee\u9898\u6392\u67e5"},"content":{"rendered":"<ul>\n<li>jstat -gcutil <PID> <time>\n<ul>\n<li>\n<ul>\n<li>\n<code>time<\/code>\u95f4\u9694\u6253\u5370<code>PID<\/code>\u7684gc\u4fe1\u606f<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\njmap -histo <PID><\/p>\n<ul>\n<li>\n\u6253\u5370\u5185\u5b58\u4e2d\u7684\u53d8\u91cf\u5927\u5c0f<\/li>\n<\/ul>\n<\/li>\n<li>\njmap -map <PID><\/p>\n<ul>\n<li>\n\u6253\u5370<code>PID<\/code>\u7684\u5185\u5b58\u5927\u81f4\u7528\u91cf<\/li>\n<\/ul>\n<\/li>\n<li>\njmap -dump:format=b,file=heap.bin <PID><\/p>\n<ul>\n<li>\nheap dump<\/li>\n<\/ul>\n<\/li>\n<li>\njstack -l  <pid> &gt; &lt;file-path&gt;<\/p>\n<ul>\n<li>\nthread dump<\/li>\n<\/ul>\n<\/li>\n<li>\nJVMOPT: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=&lt;file-path&gt;<\/p>\n<ul>\n<li>\nOOM\u65f6dump\u51fa\u5185\u5b58<\/li>\n<\/ul>\n<\/li>\n<li>\n-Xloggc:&lt;file-path&gt; -XX:+PrintGCDetails<\/p>\n<ul>\n<li>\n\u6253\u5370GC\u65e5\u5fd7<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>jstat -gcutil time\u95f4\u9694\u6253\u5370PID\u7684gc\u4fe1\u606f jmap -histo \u6253\u5370\u5185\u5b58\u4e2d\u7684\u53d8\u91cf\u5927\u5c0f jmap -map \u6253\u5370PID\u7684\u5185\u5b58\u5927\u81f4\u7528\u91cf jmap -dump:format=b,file=heap.bin heap dump jstack -l &gt; &lt;file-path&gt; thread dump JVMOPT: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=&lt;file-path&gt; OOM\u65f6dump\u51fa\u5185\u5b58 -Xloggc:&lt;file-path&gt; -XX:+PrintGCDetails \u6253\u5370GC\u65e5\u5fd7<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1131","post","type-post","status-publish","format-standard","hentry","category-study"],"_links":{"self":[{"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/posts\/1131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1131"}],"version-history":[{"count":1,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/posts\/1131\/revisions"}],"predecessor-version":[{"id":1132,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=\/wp\/v2\/posts\/1131\/revisions\/1132"}],"wp:attachment":[{"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huzi-baozi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}