What does linux hang mean?

In Linux, suspending refers to saving the currently running data in the memory and letting the process wait for the arrival of a certain event before continuing to execute, which is equivalent to putting the computer to sleep; it can be set using the rtcwake command The Linux system hangs, the syntax is "rtcwake -m mem -s time".

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

What does Linux suspension mean?

Linux system suspension is to save the currently running data in the memory. In ACPI power management, it corresponds to the S3 state, which is Suspend To Ram. It is equivalent to putting the computer to sleep (Sleep), which must be distinguished from computer hibernation (Hibernate).

Suspension means entering into waiting. Suspension is to let the process wait for a certain time to arrive before executing. In sleep state.

The command to suspend (that is, standby) in Linux is:

rtcwake

For many other help on this command, you can run man:## in the command terminal #

man rtcwake

A simple example of how to use this command:

rtcwake -m mem -s 60

means that when the system is suspended, the current system status information, etc. are saved to the memory. The suspension time is 60 seconds, that is, in It will automatically wake up after 60 seconds;

rtcwake can set how long it takes for the system to wake up, for example:

sudo rtcwake -v -s 20 -m mem

Let the system wake up automatically after hanging for 20 seconds.

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