{"id":1758,"date":"2022-12-07T08:33:07","date_gmt":"2022-12-07T08:33:07","guid":{"rendered":"http:\/\/example.com\/?p=761"},"modified":"2022-12-07T08:33:07","modified_gmt":"2022-12-07T08:33:07","slug":"761-jmap-in-java","status":"publish","type":"post","link":"https:\/\/w1.geleleger.nl\/rdswa-761-jmap-in-java-fdpkm\/","title":{"rendered":"Jmap In Java"},"content":{"rendered":"<div class=\"a1420ecab7e2234e1f4e9be5cee323bb\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 's' : '') + ':\/\/bleedingofficecontagion.com\/4a1f1119f949a4af74d56b8a3af8b867\/invoke.js\"><\/scr' + 'ipt>');\r\n<\/script>\n<\/div>\n\n<p><strong>Jmap In Java<\/strong>. <strong>Note: The output takes longer to print in this case. jmap is a tool to print statistics about memory in a running JVM. Note: This command is unsupported and might not be available in future releases of the JDK. An object that maps keys to values. So it creates a *.bin file which you can open with jvisualvm.exe (same path as jmap). Somewhere there is a big direct buffer being allocated, see: java.nio. There are only jmap -dump:live,format:b,file=heap.bin but it.<\/strong><\/p>\n<p><figure> \t\t<img decoding=\"async\" src=\"https:\/\/img2020.cnblogs.com\/blog\/1578733\/202011\/1578733-20201107150514111-334989327.png\" alt=\"java\u5206\u6790\u5de5\u5177\u7cfb\u52175\uff1ajmap\uff08\u751f\u6210\u865a\u62df\u673a\u7684\u5185\u5b58\u8f6c\u50a8\u5feb\u7167\uff09 - \u8d70\u770b\u770b\" style=\"width: 100%; padding: 5px; background-color: grey;\"><figcaption>java\u5206\u6790\u5de5\u5177\u7cfb\u52175\uff1ajmap\uff08\u751f\u6210\u865a\u62df\u673a\u7684\u5185\u5b58\u8f6c\u50a8\u5feb\u7167\uff09 &#8211; \u8d70\u770b\u770b (Lula Aguilar)<\/figcaption><\/figure>\n<p> \t \t<strong>Jmap In Java<\/strong>. <strong>On Windows Systems where the dbgeng.dll file isn&#39;t present, the Debugging Tools for Windows must be installed to make these tools work. The jmap command prints details of a specified running process. Share Follow The jmap command-line utility prints memory-related statistics for a running VM or core file. A map cannot contain duplicate keys; each key can map to at most one value. Somewhere there is a big direct buffer being allocated, see: java.nio. For more specific information, you can use the -heap, -histo, or -permstatoptions.<\/strong> Jmap In Java. <\/p>\n<h3>We can use it for local or remote processes.<\/h3>\n<p>Therefore it behaves a bit differently from the rest of the collection types.<\/p>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img-blog.csdn.net\/20161119103635801\"><img decoding=\"async\" src=\"https:\/\/img-blog.csdn.net\/20161119103635801\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.ZHy9elPqgKM0ax1MzpJiPAHaCq&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Linux\u4e0b\u5206\u6790Java\u7a0b\u5e8f\u5185\u5b58(pmap\u3001jmap\u3001jstat)_\u6781\u5ba2\u4e16\u6770-CSDN\u535a\u5ba2_java pmap<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img2020.cnblogs.com\/blog\/1578733\/202011\/1578733-20201107150118211-607390726.png\"><img decoding=\"async\" src=\"https:\/\/img2020.cnblogs.com\/blog\/1578733\/202011\/1578733-20201107150118211-607390726.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.2XnGHtFzlT52vh4qCoqgKAHaGD&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>java\u5206\u6790\u5de5\u5177\u7cfb\u52175\uff1ajmap\uff08\u751f\u6210\u865a\u62df\u673a\u7684\u5185\u5b58\u8f6c\u50a8\u5feb\u7167\uff09 &#8211; \u8d70\u770b\u770b<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/linuxhint.com\/wp-content\/uploads\/2017\/12\/word-image-44-634x433.png\"><img decoding=\"async\" src=\"https:\/\/linuxhint.com\/wp-content\/uploads\/2017\/12\/word-image-44-634x433.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.DrAbI82pmwEYg1gfgDgMTwHaFD&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>JMap and JStack for Beginners<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img-blog.csdnimg.cn\/20200611104203344.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3MDkzNDY1,size_16,color_FFFFFF,t_70\"><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/20200611104203344.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3MDkzNDY1,size_16,color_FFFFFF,t_70\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.F0F3-MAadBhUph6ZXE3RhAHaBd&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>jmap\u7684\u7528\u6cd5\uff1aJava \u5185\u5b58\u6620\u50cf\u5de5\u5177 jmap -heap pid_\u8bf7\u53eb\u6211\u5927\u5e08\u5144_\u7684\u535a\u5ba2-CSDN\u535a\u5ba2_jmap pid<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/sgp1.digitaloceanspaces.com\/ffh-space-01\/9to5answer\/uploads\/post\/avatar\/385913\/template_how-to-analyse-the-heap-dump-using-jmap-in-java20220709-1310774-19f3jyd.jpg\"><img decoding=\"async\" src=\"https:\/\/sgp1.digitaloceanspaces.com\/ffh-space-01\/9to5answer\/uploads\/post\/avatar\/385913\/template_how-to-analyse-the-heap-dump-using-jmap-in-java20220709-1310774-19f3jyd.jpg\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.7NS74Gk27MrciPSw2VMGEQHaD4&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>[Solved] How to analyse the heap dump using jmap in java | 9to5Answer<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/i.stack.imgur.com\/3HMup.png\"><img decoding=\"async\" src=\"https:\/\/i.stack.imgur.com\/3HMup.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.yXipUdoheYx60yoQNgeGdgHaBd&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java &#8211; jmap supports ascii format for heap dump and binary dump format &#8230;<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img2020.cnblogs.com\/blog\/1578733\/202011\/1578733-20201107150514111-334989327.png\"><img decoding=\"async\" src=\"https:\/\/img2020.cnblogs.com\/blog\/1578733\/202011\/1578733-20201107150514111-334989327.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse4.mm.bing.net\/th?id=OIP.Z1bF2k2jw501I9m9hD7yCwHaED&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>java\u5206\u6790\u5de5\u5177\u7cfb\u52175\uff1ajmap\uff08\u751f\u6210\u865a\u62df\u673a\u7684\u5185\u5b58\u8f6c\u50a8\u5feb\u7167\uff09 &#8211; \u8d70\u770b\u770b<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/imgconvert.csdnimg.cn\/aHR0cHM6Ly91cGxvYWQtaW1hZ2VzLmppYW5zaHUuaW8vdXBsb2FkX2ltYWdlcy82MjcxMzc2LTNiMGQzOGFiNWUwYjVjZjIucG5nP2ltYWdlTW9ncjIvYXV0by1vcmllbnQvc3RyaXB8aW1hZ2VWaWV3Mi8yL3cvMTEyMi9mb3JtYXQvd2VicA?x-oss-process=image\/format,png\"><img decoding=\"async\" src=\"https:\/\/imgconvert.csdnimg.cn\/aHR0cHM6Ly91cGxvYWQtaW1hZ2VzLmppYW5zaHUuaW8vdXBsb2FkX2ltYWdlcy82MjcxMzc2LTNiMGQzOGFiNWUwYjVjZjIucG5nP2ltYWdlTW9ncjIvYXV0by1vcmllbnQvc3RyaXB8aW1hZ2VWaWV3Mi8yL3cvMTEyMi9mb3JtYXQvd2VicA?x-oss-process=image\/format,png\" onerror=\"this.onerror=null;this.src='https:\/\/tse2.mm.bing.net\/th?id=OIP.vBoTt1ZIjWUZ33jlAazs7AHaCC&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java\u4e4bjmap\u547d\u4ee4\u5185\u5b58\u8be6\u60c5 &#8211; Cache One<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/xuexiyuan.cn\/resources\/upload\/images\/20180208\/1518080374812088783.png\"><img decoding=\"async\" src=\"https:\/\/xuexiyuan.cn\/resources\/upload\/images\/20180208\/1518080374812088783.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.64uANE5AROak8f4n0v8oyAHaEY&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>JMap (Memory Map for Java) Java \u5185\u5b58\u6620\u50cf\u5de5\u5177 &#8211; \u5b66\u4e60\u56ed-IT\u6280\u672f\u4ea4\u6d41\u5206\u4eab\u5e73\u53f0<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div style=\"display: grid;grid-template-columns: auto auto auto; background: #eee; \">\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/imgconvert.csdnimg.cn\/aHR0cHM6Ly91cGxvYWQtaW1hZ2VzLmppYW5zaHUuaW8vdXBsb2FkX2ltYWdlcy82MjcxMzc2LTMxMTQ4NzE5NWU3MmZhMTEucG5nP2ltYWdlTW9ncjIvYXV0by1vcmllbnQvc3RyaXB8aW1hZ2VWaWV3Mi8yL3cvMTIwMC9mb3JtYXQvd2VicA?x-oss-process=image\/format,png\"><img decoding=\"async\" src=\"https:\/\/imgconvert.csdnimg.cn\/aHR0cHM6Ly91cGxvYWQtaW1hZ2VzLmppYW5zaHUuaW8vdXBsb2FkX2ltYWdlcy82MjcxMzc2LTMxMTQ4NzE5NWU3MmZhMTEucG5nP2ltYWdlTW9ncjIvYXV0by1vcmllbnQvc3RyaXB8aW1hZ2VWaWV3Mi8yL3cvMTIwMC9mb3JtYXQvd2VicA?x-oss-process=image\/format,png\" onerror=\"this.onerror=null;this.src='https:\/\/tse3.mm.bing.net\/th?id=OIP.3jOQF-xF5_OgYh3e440tdAHaBO&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>Java\u4e4bjmap\u547d\u4ee4\u5185\u5b58\u8be6\u60c5 &#8211; Cache One<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img2020.cnblogs.com\/blog\/1172336\/202006\/1172336-20200622152131286-2023795132.png\"><img decoding=\"async\" src=\"https:\/\/img2020.cnblogs.com\/blog\/1172336\/202006\/1172336-20200622152131286-2023795132.png\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.lumHv6BNKxa6sSCX6nBmugHaKV&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>jmap\u4f7f\u7528\u65b9\u6cd5\u53ca\u539f\u7406 &#8211; FairyTaleTown &#8211; \u535a\u5ba2\u56ed<\/p>\n<\/p><\/div>\n<div style=\"padding: 1em;\"> \t\t        <a href=\"https:\/\/img-blog.csdnimg.cn\/20200610180721879.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3MDkzNDY1,size_16,color_FFFFFF,t_70\"><img decoding=\"async\" src=\"https:\/\/img-blog.csdnimg.cn\/20200610180721879.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3MDkzNDY1,size_16,color_FFFFFF,t_70\" onerror=\"this.onerror=null;this.src='https:\/\/tse1.mm.bing.net\/th?id=OIP.vsyHDJt6gEEWrGOAztBm5gHaF-&amp;pid=Api';\" style=\"width:100%;margin-top: 8px;vertical-align: middle;\"><\/a> \t\t        <\/p>\n<p>jmap\u7684\u7528\u6cd5\uff1aJava \u5185\u5b58\u6620\u50cf\u5de5\u5177 jmap -heap pid_\u8bf7\u53eb\u6211\u5927\u5e08\u5144_\u7684\u535a\u5ba2-CSDN\u535a\u5ba2_jmap pid<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><strong>Jmap In Java<\/strong>. <strong>If jmap is used without any command-line options, then it prints the list of shared objects loaded. Java Map interface is not a subtype of the Collection interface. Overview In this tutorial, we&#39;ll explore JMapper &#8211; a fast and easy to use mapping framework. Each key and value pair is known as an entry. The utility can also use the jsadebugd daemon to query a process or core file on a remote machine. Share Follow The jmap command-line utility prints memory-related statistics for a running VM or core file.<\/p>\n<p><\/strong> Jmap In Java.<\/p>\n<div class=\"a1420ecab7e2234e1f4e9be5cee323bb\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : '4a1f1119f949a4af74d56b8a3af8b867',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n\tdocument.write('<scr' + 'ipt type=\"text\/javascript\" src=\"http' + (location.protocol === 'https:' ? 's' : '') + ':\/\/bleedingofficecontagion.com\/4a1f1119f949a4af74d56b8a3af8b867\/invoke.js\"><\/scr' + 'ipt>');\r\n<\/script>\n<\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Jmap In Java. Note: The output takes longer to print in this case. jmap is a tool to print statistics [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts\/1758"}],"collection":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/comments?post=1758"}],"version-history":[{"count":0,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/posts\/1758\/revisions"}],"wp:attachment":[{"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/media?parent=1758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/categories?post=1758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w1.geleleger.nl\/wp-json\/wp\/v2\/tags?post=1758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}