Display top running processes in CLI terminal Linux - As always, command line is It's simple, flexible, and powerful. Using command line via terminal is good deal to save your time. So you can use your time to learn new things.
For that reason, today I will show you quick Linux tips how to find processes are consuming lots of Memory and CPU utilization in Linux via terminal.
For that reason, today I will show you quick Linux tips how to find processes are consuming lots of Memory and CPU utilization in Linux via terminal.
The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of processes or threads currently being managed by the Linux kernel.
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The types of system summary information shown and the types, order and size of information displayed for processes are all user configurable and that configuration can be made persis‐ tent across restarts.
top
Here's the output example :
You can add pipeline and head to print the first x lines as shown :
# top | head -n 15
top - 10:36:39 up 17 min, 1 user, load average: 0.27, 0.45, 0.55
Tasks: 225 total, 1 running, 224 sleeping, 0 stopped, 0 zombie
%Cpu(s): 8.2 us, 1.5 sy, 0.2 ni, 83.5 id, 6.5 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 8068884 total, 5452088 free, 1256932 used, 1359864 buff/cache
KiB Swap: 999996 total, 999996 free, 0 used. 6323236 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4609 tiwo 20 0 41804 3772 3120 R 6.2 0.0 0:00.01 top
1 root 20 0 119744 5856 3932 S 0.0 0.1 0:02.10 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.04 ksoftirqd/0
4 root 20 0 0 0 0 S 0.0 0.0 0:01.54 kworker/0:0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:+
7 root 20 0 0 0 0 S 0.0 0.0 0:01.21 rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
Save top Output to File
Additionally, you can use top in batch mode to save the output to a file :
top -b | head -n 22 > memoryusage.txt
For more usage, simply read the manual page, do :
man top
These were all how to listing top running processes in Linux by highest memory and CPU usage using top. Thanks for visiting us!