Command line: -Dproc_rangeradmin -XX:MaxPermSize=256m -Xmx10240m -Xms10240m -Xmn4096m -Duser.timezone=UTC -Duser=root -Dhostname=cdh2 -Dservername=rangeradmin -Dlogdir=/home/hypergalaxy/rangeradmin/ews/logs -Dcatalina.base=/home/hypergalaxy/rangeradmin/ews 1. 2. 3. 4. 5. 6. 7...
MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean(); MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage(); long max = heapMemoryUsage.getMax(); long used = heapMemoryUsage.getUsed(); System.out.println(String.format("使用内存:%dMB/%dMB", used / 1024 / 1024, max /...
Memory: 4k page, physical 3923884k(3586120k free), swap 3186680k(3186680k free) CommandLine flags: -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=heap.hprof -XX:InitialHeapSize=268435456 -XX:MaxHeapSize=536870912 -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+UseCompresse...
-flag name prints the name and value of the given command line flag. -flag [+|-]name enables or disables the given boolean command line flag. -flag name=value sets the given command line flag to the specified value. -flags prints command line flags passed to the JVM. pairs. -sysprops...
Configuration Info for Java | 显示虚拟机配置信息 | | jmap | JVM Memory Map | 生成虚拟机的内存转储快照,生成heapdump文件 | | jhat | JVM Heap Dump Browser | 用于分析heapdump文件,它会建立一个HTTP/HTML服务器,让用户在浏览器上查看分析结果 | | jstack | JVM Stack Trace | 显示虚拟机的线程快照...
(1) How to find Java Heap Size and Memory Used (Linux)?. https://www.w3docs.com/snippets/java/how-to-find-java-heap-size-and-memory-used-linux.html (2) java - How to check heap usage of a running JVM from the command line ... https://stackoverflow.com/questions/14464770/how-to...
-XX:+PrintCommandLineFlags -XX:+PrintFlagsFinal PrintFlagsFinal是一项有趣的JVM选项，它将显示所有JVM标志设置的详细信息，输出内容有超过500行。本文介绍的Java JVM选项已经全部讲解完毕，如果你对PrintFlagsFinal JVM标志的详细输出感兴趣，可以查看上文提到的输出内容。$java -XX:+PrintFlagsFinal -version [...
VM.command_line VM.version help For more information about a specific command use'help <command>'. [root@localhost software]# 使用示例:使用jcmd打印NativeMemoryTracking,分析堆外内存 首先需要配置JVM参数-XX:NativeMemoryTracking=[off | summary | detail]。在tomcat的catalina.sh中加入JAVA_OPTS="-XX:Na...
K: %CPU = (CPU usage) 上次更新到现在的CPU时间占用百分比 N: %MEM = (Memory usage (RES)) 进程使用的物理内存百分比 M: TIME+ = (CPU Time, hundredths) 进程使用的CPU时间总计,单位1/100秒 b: PPID = (Parent Process Pid) 父进程Id
Process uptime, CPU, memory usage, user/group, command line args, thread details Physical and virtual memory used/available Mounted filesystems (type, usable and total space, options, reads and writes) Disk drives (model, serial, size, reads and writes) and partitions Network interfaces (IPs...