Math-Linux.com

Knowledge base dedicated to Linux and applied mathematics.

Home > Linux > Tip of the day > Find out biggest cpu/memory consuming processes with ps command

Find out biggest cpu/memory consuming processes with ps command

All the versions of this article: <English> <français>


Biggest memory consuming processes

root@kali:~# ps -eo pmem,pcpu,pid,args | tail -n +2 | sort -rnk 1 | head
1.8  0.0  3304 gnome-panel
1.3  0.2  3365 /usr/lib/vmware-tools/sbin64/vmtoolsd -n vmusr --blockFd 3
1.3  0.0  3370 nautilus -n
1.2  0.3  2642 /usr/bin/Xorg :0 -br -verbose -novtswitch -auth /var/run/gdm3/auth-for-Debian-gdm-0vVbZF/database -nolisten tcp vt7
1.0  0.1  3468 gnome-terminal
0.9  0.0  3377 nm-applet
0.8  0.0  3371 gnome-screensaver
0.8  0.0  3357 gnome-sound-applet
0.8  0.0  3267 /usr/lib/gnome-settings-daemon/gnome-settings-daemon
0.7  0.0  3458 /usr/lib/gnome-online-accounts/goa-daemon

Biggest cpu consuming processes

root@kali:~# ps -eo pmem,pcpu,pid,args | tail -n +2 | sort -rnk 2 | head
0.1 26.4  5845 find / -name *fg*
1.8  0.0  3304 gnome-panel
1.3  0.3  3365 /usr/lib/vmware-tools/sbin64/vmtoolsd -n vmusr --blockFd 3
1.3  0.3  2642 /usr/bin/Xorg :0 -br -verbose -novtswitch -auth /var/run/gdm3/auth-for-Debian-gdm-0vVbZF/database -nolisten tcp vt7
1.3  0.0  3370 nautilus -n
0.9  0.1  3468 gnome-terminal
0.9  0.0  3377 nm-applet
0.8  0.0  3371 gnome-screensaver
0.8  0.0  3357 gnome-sound-applet
0.8  0.0  3267 /usr/lib/gnome-settings-daemon/gnome-settings-daemon

Explanations

- ps Report a snapshot of the current processes
- -e Select all processes
- o Specify user-defined format
- pmem,pcpu,pid,args user-defined format: memory,cpu, pid number and command
- | tail -n +2 Output lines starting to the second line (to avoid column names such %MEM, etc ...)
- | sort -rnk 1 reverse (r), numeric sort (n) by column 1 (memory)
- | sort -rnk 2 reverse (r), numeric sort (n) by column 2 (cpu)
- | head output the 10 first lines

Enjoy !!!

Also in this section

  1. Crontab : Scheduling Tasks
  2. Time a task: time
  3. Download music and videos .mp3, .wma, .avi, .mpg , divx with google
  4. How to change the MAC address on Linux
  5. Comment changer son adresse MAC sous Linux
  6. How to Convert Text File From ISO-8859-15 to UTF-8 Encoding
  7. SVN — How to ignore file or directory in subversion?
  8. How to setup SSH timeout in shell script ?
  9. phpMyAdmin: Search and Replace in MySQL database
  10. How to encrypt/decrypt a file or directory in Linux?
  11. Find list of options that python was compiled with
  12. Check/find version of numpy i’m using
  13. Speedup GNU make build and compilation process
  14. How to make a denial of a service with fork functions in BASH ?
  15. Find out biggest cpu/memory consuming processes with ps command
  16. Intel compilation for MIC architecture KNL Knights Landing
  17. GNU compilation for MIC architecture KNL Knights Landing
  18. Archiving and compressing data files tar
  19. Linux How to delete or remove printer from command line
  20. Linux How to connect to Windows with remote desktop RDP in CentOS 7 / RedHat 7
  21. SVN — Branch, Branching subversion howto
  22. How to diff remote files using ssh ?
  23. Generating a self-signed certificate using OpenSSL with Linux CentOs/RedHat for Apache/httpd