![]() Terminated but not repeated by its parent. D: the process is in uninterruptible sleep (cannot be woken up from sleep).S: the process is in interruptible sleep (waiting for an event or condition to happen).R: the process is currently running or on a run queue waiting to run.Here are the values you might encounter within it: While within htop it is denoted as only an “S”, it stands for process state. This command gets the information from the /etc/passwd and /etc/group files. The id command can be used to find out the name of the user. You can also use the f switch with ps or pstree. If you hit F5 in htop, you can see the process hierarchy. These relationships form a tree structure. The new process is now a child process for the parent process. When you launch a new process, the process that launches the new process is called the parent process. ![]() If you run a program in the background ( &) from bash, you will see the job number in square brackets and the PID. PID (Process ID)Įvery time a new process is started, it is assigned an identification number (ID) called process ID or PID for short. If you take another look at the strace output, you'll see that this file was also opened. They are taken from the /proc/loadavg file. In addition to uptime, three numbers represent the load average. It reads the information from the /proc/uptime file. The same information can be seen by running the uptime command. This parameter indicates how long the system has been running. Now, let’s see what each field means, starting at the top: Uptime Here’s what the htop interface looks like: First and foremost, you need to install htop on your system.
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