shared memory size

Virt:virtual Memory usage Virtual RAM1. The process "required" virtual memory size, including the library, code, data, etc. used by the process2, if the process to apply for 100m of memory, but the actual use of only 10m, then it will grow 100m,

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

The so-called shared memory is the fastest available IPC form that allows multiple processes to access the same piece of memory space. is designed for inefficient operation of other communication mechanisms. It is often used in conjunction with

Tools for monitoring---topFirst line: 10:01:23 Current system time 126 days, 14:29 the system has been running for 126 day, 14 hours, 29 minutes (not restarted during this period) 2 users currently have 2 user login systems Load

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

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The top command is a common performance analysis tool under Linux that shows the resource usage of each process in real time, such as CPU, memory usage, and so on, similar to the Task Manager of Windows.1. Command format:top[选项]2. Common

Transferred from: http://www.cnblogs.com/xd502djj/archive/2011/03/01/1968041.htmlDuring system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In

IntroductionThe 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 display system current process and other

The top command dynamically displays the overall resources of the system and the resource usage of each process, and is a common performance analysis tool under Linux.top command Syntaxuse format: Top [-] [d] [b] [H] [P] [Q] [C] [C] [s] [s]

Title's three fields are explained below the man top, but they are somewhat ambiguous, and it is difficult to understand how they are specific to the resource usage of the process. After reviewing the information, summarize.VIRT: 1. The

IntroductionThe 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 display system current process and other

The Linux system can use the top command to view information about the system's CPU, memory, run time, swap partition, thread execution, and so on. With the top command, you can find out where the system's flaws are. is not enough memory, CPU

This section of the content is a little miscellaneous, you can only manually enter theThe 1.uname command is used to print information about the current system (kernel version number, hardware architecture, host name, operating system type, and so

IntroductionThe 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 display system current process and other

The Htop is a Linux system monitoring and process management software that replaces the traditional UNIX top. Unlike top, which provides only the most resource-consuming list of processes, Htop provides a list of all processes and uses color to

I. System performance analysis (Top command)The top command is a common performance analysis tool under Linux that shows the resource usage of each process in real time, and refreshes the list of processes by default for 5 seconds, so it is similar

top-01:06:48 up 1:22, 1 user, load average:0.06, 0.60, 0.48tasks:29 Total, 1 running, sleeping, 0 stopped, 0 zombieCpu (s): 0.3% us, 1.0% sy, 0.0% ni, 98.7% ID, 0.0% wa, 0.0% Hi, 0.0% simem:191272k Total, 173656k used, 17616k free, 22052k

During system maintenance, it may be necessary to review the CPU usage at any time, and to analyze the system condition according to the corresponding information. In CentOS, you can view CPU usage by using the top command. After running the top

Top Command 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