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This article shows you how to use pid_max to limit the number of processes in Linux. The content is concise and easy to understand. It will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

The Linux kernel uses pid_max to control the number of processes.

# cat / proc/sys/kernel/pid_max32768# sysctl-a | grep pid_maxkernel.pid_max = 32768

The following is the help of the sysctl command.

# sysctl-hUsage: sysctl [options] [variable [= value]...] Options:-a,-all display all variables-An alias of-a-X alias of-a-- deprecated include deprecated parameters to listing-b,-- binary print value without new line-e,-- ignore ignore unknown variables errors-N,-- names print variable names without values-n,-- values print only values of a variables-p -- load [=] read values from file-f alias of-p-- system read values from all system directories-r,-- pattern select setting that match expression-Q,-- quiet do not echo variable set-w,-- write enable writing a value to variable-o does nothing-x does nothing-d alias of-h-h,-- help display this help and exit-V,-- version output version information and exitFor more details see sysctl (8). What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

The above is how to use pid_max to limit the number of processes in Linux. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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