61a63c0ff0
* Update 20170623 3 mistakes to avoid when learning to code in Python.md * Update 20170606 ps_mem – A Simple Python Script To Report Core Memory Usage Accurately In Linux.md
11 KiB
translating by xllc
ps_mem – A Simple Python Script To Report Core Memory Usage Accurately In Linux
ps_mem is a simple python script which help us to get core memory usage accurately for a program in Linux. There are many utilities available in Linux to see memory usage such as free, vmstat, smem & top, etc,. but this utility bit different compare with others since its showing core memory usage accurately.
It’s calculating the sum of private & sum of shared memory against a program and giving total used RAM in more appropriate way, definitely it will help everyone to understand which program eating more RAM in system.
You can install the ps_mem utility in many ways, through package manager, pip and directly method (by running the ps_mem.py script). Make a note, it’s requires root privilege.
Also read the below suggested memory utilities.
Suggested Read : free – A Standard Command to Check Memory Usage Statistics (Free & Used) in Linux
Suggested Read : smem – Linux Memory Reporting/Statistics Tool
Suggested Read : vmstat – A Standard Nifty Tool to Report Virtual Memory Statistics
Install ps_mem Via Package Manager
RHEL based system has the ps_mem utility in default repository, so we can easily install it through package manager.
For RHEL/CentOS, use yum Package Manager to install ps_mem package.
$ sudo yum install ps_mem
For Fedora, use dnf Package Manager to install ps_mem package.
$ sudo dnf install ps_mem
For Arch Linux, use pacman Package Manager to install ps_mem package.
$ sudo pacman -S ps_mem
Install ps_mem Via Pip
pip is a recommended tool for installing Python packages in Linux. Use pip command instead of package manager to get latest build. Make sure you should have install pip package on your system in order to use the pip package. If no, use distribution package manager and install python-pip package.
For Debian based systems.
$ sudo apt-get install python-pip
For RHEL/CentOS based systems.
$ sudo yum install python-pip
For Fedora
$ sudo dnf install python-pip
For openSUSE
$ sudo zypper install python-pip
For Arch Linux based systems
$ sudo pacman -S python-pip
Finally run the pip tool to install ps_mem on Linux.
$ sudo pip install ps_mem
Run ps_mem.py script directly
Alternatively we can run the ps_mem.ph script directly by downloading the file from developer github page.
$ git clone https://github.com/pixelb/ps_mem.git && cd ps_mem
$ sudo python ps_mem.py
ps_mem Usage
Just run the ps_mem without any option to get core memory usage accurately for per program.
$ sudo ps_mem
Private + Shared = RAM used Program
1.6 MiB + 438.5 KiB = 2.1 MiB packagekitd
1.7 MiB + 498.0 KiB = 2.1 MiB indicator-application-service
912.0 KiB + 1.3 MiB = 2.2 MiB window-stack-bridge
2.0 MiB + 350.5 KiB = 2.3 MiB gnome-keyring-daemon
1.8 MiB + 575.0 KiB = 2.3 MiB whoopsie
2.4 MiB + 304.5 KiB = 2.7 MiB systemd-journald
2.7 MiB + 157.5 KiB = 2.8 MiB ibus-engine-simple
2.7 MiB + 182.0 KiB = 2.9 MiB ibus-dconf
2.7 MiB + 332.5 KiB = 3.0 MiB NetworkManager
3.1 MiB + 169.5 KiB = 3.2 MiB polkitd
1.9 MiB + 1.7 MiB = 3.6 MiB systemd (2)
3.4 MiB + 172.5 KiB = 3.6 MiB deja-dup-monitor
2.9 MiB + 685.0 KiB = 3.6 MiB zeitgeist-datahub
2.9 MiB + 848.0 KiB = 3.7 MiB python2.7
3.5 MiB + 442.0 KiB = 4.0 MiB dbus-daemon (3)
3.2 MiB + 951.0 KiB = 4.1 MiB evolution-addressbook-factory
3.9 MiB + 435.0 KiB = 4.3 MiB lightdm (2)
3.7 MiB + 826.5 KiB = 4.5 MiB polkit-gnome-authentication-agent-1
3.7 MiB + 853.0 KiB = 4.6 MiB unity-fallback-mount-helper
3.7 MiB + 884.0 KiB = 4.6 MiB ibus-x11
4.1 MiB + 590.5 KiB = 4.6 MiB indicator-sound-service
4.5 MiB + 167.0 KiB = 4.7 MiB udisksd
4.3 MiB + 571.0 KiB = 4.9 MiB gnome-session-binary
4.5 MiB + 519.0 KiB = 5.0 MiB zeitgeist-fts
4.2 MiB + 900.5 KiB = 5.1 MiB indicator-printers-service
4.1 MiB + 1.0 MiB = 5.1 MiB bash (2)
3.9 MiB + 1.2 MiB = 5.2 MiB update-notifier
4.8 MiB + 426.0 KiB = 5.2 MiB pulseaudio
4.5 MiB + 1.5 MiB = 6.0 MiB url-dispatcher
4.3 MiB + 1.7 MiB = 6.0 MiB python3.5
5.2 MiB + 856.5 KiB = 6.1 MiB evolution-addressbook-factory-subprocess
5.6 MiB + 494.5 KiB = 6.1 MiB colord
5.0 MiB + 1.2 MiB = 6.2 MiB bamfdaemon
5.7 MiB + 1.1 MiB = 6.8 MiB evolution-source-registry
5.6 MiB + 1.3 MiB = 6.9 MiB indicator-keyboard-service
5.5 MiB + 1.5 MiB = 7.1 MiB ibus-ui-gtk3
5.4 MiB + 1.8 MiB = 7.2 MiB notify-osd
6.3 MiB + 1.1 MiB = 7.4 MiB nm-applet
6.4 MiB + 1.4 MiB = 7.8 MiB evolution-calendar-factory
6.3 MiB + 1.5 MiB = 7.8 MiB hud-service
6.5 MiB + 1.5 MiB = 8.0 MiB unity-panel-service
8.2 MiB + 1.8 MiB = 10.0 MiB unity-settings-daemon
11.1 MiB + 126.5 KiB = 11.2 MiB snapd
8.2 MiB + 3.0 MiB = 11.2 MiB indicator-datetime-service
10.3 MiB + 1.7 MiB = 12.0 MiB evolution-calendar-factory-subprocess (2)
12.5 MiB + 2.8 MiB = 15.3 MiB redshift-gtk
14.5 MiB + 1.8 MiB = 16.3 MiB fluxgui
13.5 MiB + 2.9 MiB = 16.4 MiB gnome-terminal-server
12.7 MiB + 7.6 MiB = 20.4 MiB apache2 (6)
20.8 MiB + 503.0 KiB = 21.3 MiB fwupd
22.8 MiB + 70.0 KiB = 22.9 MiB collectl
22.2 MiB + 10.8 MiB = 33.0 MiB nautilus
70.9 MiB + 1.5 MiB = 72.4 MiB gnome-software
97.9 MiB + 24.8 MiB = 122.8 MiB Xorg
131.9 MiB + 168.0 KiB = 132.1 MiB mysqld
222.1 MiB + 9.4 MiB = 231.5 MiB compiz
286.2 MiB + 11.8 MiB = 298.0 MiB firefox
---------------------------------
1.3 GiB
=================================
To print an output with full path.
$ sudo ps_mem -s
Private + Shared = RAM used Program
3.2 MiB + 951.0 KiB = 4.1 MiB /usr/lib/evolution/evolution-addressbook-factory
3.7 MiB + 826.5 KiB = 4.5 MiB /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
3.7 MiB + 853.0 KiB = 4.6 MiB /usr/lib/unity-settings-daemon/unity-fallback-mount-helper
3.7 MiB + 884.0 KiB = 4.6 MiB /usr/lib/ibus/ibus-x11 --kill-daemon
4.1 MiB + 590.5 KiB = 4.6 MiB /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
4.5 MiB + 167.0 KiB = 4.7 MiB /usr/lib/udisks2/udisksd --no-debug
4.3 MiB + 571.0 KiB = 4.9 MiB /usr/lib/gnome-session/gnome-session-binary --session=ubuntu
4.5 MiB + 519.0 KiB = 5.0 MiB /usr/lib/x86_64-linux-gnu/zeitgeist-fts
4.2 MiB + 900.5 KiB = 5.1 MiB /usr/lib/x86_64-linux-gnu/indicator-printers/indicator-printers-service
4.1 MiB + 1.0 MiB = 5.1 MiB bash (2)
3.9 MiB + 1.2 MiB = 5.2 MiB update-notifier
4.8 MiB + 426.0 KiB = 5.2 MiB /usr/bin/pulseaudio --start --log-target=syslog
5.0 MiB + 863.0 KiB = 5.9 MiB /usr/lib/evolution/evolution-calendar-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx2573x3 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/2573/3
4.5 MiB + 1.5 MiB = 6.0 MiB /usr/lib/x86_64-linux-gnu/url-dispatcher/url-dispatcher
4.3 MiB + 1.7 MiB = 6.0 MiB python3 -v
5.2 MiB + 856.5 KiB = 6.1 MiB /usr/lib/evolution/evolution-addressbook-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.AddressBookx2637x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/AddressBook/2637/2
5.6 MiB + 494.5 KiB = 6.1 MiB /usr/lib/colord/colord
5.2 MiB + 913.0 KiB = 6.1 MiB /usr/lib/evolution/evolution-calendar-factory-subprocess --factory contacts --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx2573x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/2573/2
5.0 MiB + 1.2 MiB = 6.2 MiB /usr/lib/x86_64-linux-gnu/bamf/bamfdaemon
5.7 MiB + 1.1 MiB = 6.8 MiB /usr/lib/evolution/evolution-source-registry
5.6 MiB + 1.3 MiB = 6.9 MiB /usr/lib/x86_64-linux-gnu/indicator-keyboard/indicator-keyboard-service --use-gtk
5.5 MiB + 1.5 MiB = 7.1 MiB /usr/lib/ibus/ibus-ui-gtk3
5.4 MiB + 1.8 MiB = 7.2 MiB /usr/lib/x86_64-linux-gnu/notify-osd
6.3 MiB + 1.1 MiB = 7.4 MiB nm-applet
6.4 MiB + 1.4 MiB = 7.8 MiB /usr/lib/evolution/evolution-calendar-factory
6.3 MiB + 1.5 MiB = 7.8 MiB /usr/lib/x86_64-linux-gnu/hud/hud-service
6.5 MiB + 1.5 MiB = 8.0 MiB /usr/lib/x86_64-linux-gnu/unity/unity-panel-service
8.2 MiB + 1.8 MiB = 10.0 MiB /usr/lib/unity-settings-daemon/unity-settings-daemon
11.1 MiB + 126.5 KiB = 11.2 MiB /usr/lib/snapd/snapd
8.2 MiB + 3.0 MiB = 11.2 MiB /usr/lib/x86_64-linux-gnu/indicator-datetime/indicator-datetime-service
12.5 MiB + 2.8 MiB = 15.3 MiB /usr/bin/python3 /usr/bin/redshift-gtk
14.5 MiB + 1.8 MiB = 16.3 MiB /usr/bin/python /usr/bin/fluxgui
13.6 MiB + 2.9 MiB = 16.4 MiB /usr/lib/gnome-terminal/gnome-terminal-server
12.7 MiB + 7.6 MiB = 20.4 MiB /usr/sbin/apache2 -k start (6)
20.8 MiB + 503.0 KiB = 21.3 MiB /usr/lib/x86_64-linux-gnu/fwupd/fwupd
22.8 MiB + 70.0 KiB = 22.9 MiB /usr/bin/perl -w /usr/bin/collectl -D
22.2 MiB + 10.8 MiB = 33.0 MiB nautilus -n
70.9 MiB + 1.5 MiB = 72.4 MiB /usr/bin/gnome-software --gapplication-service
97.9 MiB + 24.8 MiB = 122.8 MiB /usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
131.9 MiB + 168.0 KiB = 132.1 MiB /usr/sbin/mysqld
222.1 MiB + 9.4 MiB = 231.5 MiB /usr/bin/compiz
286.2 MiB + 11.8 MiB = 298.1 MiB /usr/lib/firefox/firefox
---------------------------------
1.3 GiB
=================================
Only show memory usage PIDs in the specified list
$ sudo ps_mem -p 2886,4386
Private + Shared = RAM used Program
13.5 MiB + 2.9 MiB = 16.4 MiB gnome-terminal-server
286.2 MiB + 11.8 MiB = 298.0 MiB firefox
---------------------------------
314.4 MiB
=================================
To print process memory in every N seconds. The following command reports memory usage in every 2 seconds.
$ sudo ps_mem w 2
To show only total memory.
$ sudo ps_mem -t
1329884160
via: http://www.2daygeek.com/ps_mem-report-core-memory-usage-accurately-in-linux/