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One system monitoring1. System monitoring and Process control tools-top and free1) Mastering the function of the top command: The top command is a common performance analysis tool under Linux that shows the resource usage of each process in the

XI. system Monitoring 11.1 system monitoring and Process control tools 11.1.1 Top1) The function of the top command: The top command is a common performance analysis tool under Linux that shows the resource usage of each process in real time,

First, system monitoring1.top: Real-time display of resource usage for each process in the system, similar to the Task Manager for Windows.1. The first line is the task queue information 12:38:33 Current time Up 50

The top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Here is a detailed description of how it is used. Top is a

The top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Here is a detailed description of how it is used.

Linux Command Tools TopThe top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Top is a dynamic display process

The top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Here is a detailed description of how it is used.

The top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for Windows. Here is a detailed description of how it is used. Top is a

1. Disk IO monitoring Tool iotopInput command: Iotop main View the disk IO information used by the programInstallation: Yum-y Install IotopFirst line:10:01:23-Current system time126 days, 14:29-the system has been running for 126 day, 14 hours, 29

Linux TerminalLinux has 6 terminal ALT+F1-F6 switch each terminal so there is a benefit, you can use multiple terminals at the same time to do things, a terminal dead, you can also switch to another terminalCD/root directoryLsThe Blue CatalogueWhite

One, Global lock1, in Python, the execution of Python code is controlled by a Python virtual machine, while in the Python virtual machine, only one thread executes at the same time, just like running multiple processes in a single CPU system, the

Before reading this article, we recommend reading the following sister articles:" second-kill multithreaded fourth" a classic multi-threaded synchronization problem " second-kill multithreaded fifth" Classic thread synchronization key section CS"

In the last section of the line program (click here for details), we explain the thread waiting for join (), the daemon thread. In this section we will complete the rest of the thread control content, the main content of the threads of sleep,

the previous article " second-kill multithreading the third atom Operation interlocked series functions describes the role of atomic operations in multiple processes, and now comes to a complex point. This problem involves thread synchronization and

The use of Critical segment CS, event events, mutex mutex in classic thread synchronization problems is described earlier. This article introduces the use of semaphore semaphore to solve this problem.First also to see how to use the semaphore,

View multi-core CPU commandsMpstat-p All and sar-p allDescription:sar-p all > Aaa.txt redirect output to file Aaa.txtThe top command is often used to monitor Linux system conditions, such as CPU, memory usage, the programmer basically knows this

about the Linux top commandThe top command is one of the most popular performance monitoring tools that we need to understand. It is an excellent interactive tool for monitoring performance. It provides overall system performance, but reporting

The top command is often used to monitor Linux system conditions, such as CPU, memory usage, the programmer basically knows this command, but it is strange to use it very few people, such as the top monitoring view of the memory value of the meaning

Tools for real-time monitoring or viewing system resource usage--topThe top command is a common performance analysis tool under Linux that shows the resource usage of individual processes in the system in real time, similar to the Task Manager for

the previous article " second-kill multithreading the third atom Operation interlocked series functions describes the role of atomic operations in multiple processes, and now comes to a complex point. This problem involves thread synchronization and