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How to check jvm memory usage
Methods to check jvm memory usage: 1. Use command line tools; 2. Use JMX; 3. Use Java code; 4. Use VisualVM; 5. Use MAT; 6. Use Java Mission Control; 7. Customize monitoring and analysis tool. This topic provides you with relevant articles, downloads, and course content for you to download and experience for free.
How to check jvm memory usageMethods to check jvm memory usage: 1. Use command line tools; 2. Use JMX; 3. Use Java code; 4. Use VisualVM; 5. Use MAT; 6. Use Java Mission Control; 7. Customize monitoring and analysis tool. Detailed introduction: 1. Use the command line tool, you can use the jstat command line tool to view the memory usage of the JVM; 2. Use JMX, which is a standard API of the Java platform, used to manage and monitor Java applications, etc.
jvm memory leak troubleshooting processTo query the processes that consume the most CPU, jps first finds out those java processes; use the top command to check those java processes that consume the most CPU. To find the thread occupying the largest memory, command: ps p pid -L -o pcpu,pid,tid,time,tname,cmd.
What is the JVM memory model?The JAVA memory model (Java Memory Model, JMM) complies with the computer memory model specification. By setting up memory barriers, it shields the access differences of different hardware and operating systems, ensuring that Java programs can achieve memory access effects on different platforms. Consistent mechanisms and specifications.
An in-depth introduction to the JVM memory data areaThis article introduces the knowledge of JVM memory data area from the java development introduction column to facilitate your understanding. JAVA programs run on virtual machines and require memory space when running. When the virtual machine executes the JAVA program, the memory it manages will be divided into different data areas for easy management.
What is the jvm memory structure and functionJVM memory structure: 1. Program counter; 2. Java virtual machine stack; 3. Local method stack; 4. Heap; 5. Method area. Its functions: 1. Program counter, used to record the address of the next instruction to be executed, which is a private memory area of the thread; 2. Java virtual machine stack, which saves the local variables of the method, part of the results, and the method call and return information. Each thread has its own virtual machine stack. Each method call creates a stack frame to store relevant execution information. The Java virtual machine stack is also private to the thread; 3. Local method stack, etc.
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