Dynamic real-time view of the running system in Linux

Question

Hi Guys,

I am new to the Linux system. I want to check a dynamic real-time view of the running system in Linux. How can I do that?

Answer 1

Hi@akhtar,

The top command is used to show the Linux processes. It provides a dynamic real-time view of the running system.

$ top

top - 00:07:11 up  3:31,  2 users,  load average: 0.00, 0.00, 0.00
Tasks: 238 total,   2 running, 236 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.5 us,  0.2 sy,  0.0 ni, 99.2 id,  0.0 wa,  0.2 hi,  0.0 si,  0.0 st
MiB Mem :   7972.9 total,   6248.5 free,   1053.9 used,    670.4 buff/cache
MiB Swap:   8104.0 total,   8104.0 free,      0.0 used.   6656.8 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
 1463 gdm       20   0 3338792 181736  98960 S   0.3   2.2   0:13.02 gnome-shell
 2029 root      20   0 3418032 257676 109340 S   0.3   3.2   0:53.05 gnome-shell
 2168 root      20   0  177712  29672   8120 S   0.3   0.4   0:19.00 sssd_kcm
    1 root      20   0  179120  13968   9132 S   0.0   0.2   0:02.89 systemd
    2 root      20   0       0      0      0 S   0.0   0.0   0:00.01 kthreadd
    3 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_gp
    4 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 rcu_par_gp
    6 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 kworker/0:0H-kblockd
    8 root       0 -20       0      0      0 I   0.0   0.0   0:00.00 mm_percpu_wq
    9 root      20   0       0      0      0 S   0.0   0.0   0:00.06 ksoftirqd/0
   10 root      20   0       0      0      0 I   0.0   0.0   0:00.50 rcu_sched
   11 root      rt   0       0      0      0 S   0.0   0.0   0:00.00 migration/0