How to Install SMEM Memory Usage Tool in Ubuntu
To Install SMEM Memory Usage Tool in Ubuntu
SMEM is an open source memory reporting tool that provides memory usage reports in Linux system. It displays the output in meaningful representation. SMEM reports Unique Set Size (USS) and Proportional Set Size (PSS) by using the standard measure of memory known as Resident Set Size(RSS).
Features
- Configurable output units and percentages
- Configurable headers and totals
- Read live data from /proc
- Read data snapshots from compressed tarballs
- Lightweight capture tool
- List and filter output by process, mapping, user
Installation of SMEM
Utilize the following command to install the SMEM package.
root@linuxhelp:/home/user1# apt-get install smem
Reading package lists... Done
Building dependency tree
Reading state information... Done
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Setting up smem (1.4-2) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
Command Usage
The ' -m' used to check the memory usage by mapping.
root@linuxhelp:/home/user1# smem -m
Map PIDs AVGPSS PSS
/dev/dri/card0 2 0 0
/usr/lib/x86_64-linux-gnu/gconv/gconv-mo 35 0 0
/usr/share/locale-langpack/en/LC_MESSAGE 14 0 0
/var/cache/fontconfig/0c9eb80ebd1c36541e 17 0 0
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/usr/lib/x86_64-linux-gnu/libLLVM-3.6.so 2 11342 22684
117 1703 199336
[heap] 116 1867 216580
The ' -w' used to check the system wide memory usage.
root@linuxhelp:/home/user1# smem -w
Area Used Cache Noncache
firmware/hardware 0 0 0
kernel image 0 0 0
kernel dynamic memory 1894076 1639584 254492
userspace memory 740720 196592 544128
free memory 1394488 1394488 0
The ' -u' used to check the memory usage for each user.
root@linuxhelp:/home/user1# smem -u User Count Swap USS PSS RSS uuidd 1 0 232 274 2520 rtkit 1 0 372 400 2996 . . . root 33 0 102908 118292 269020 user1 71 0 464508 525870 1303292 The following command allows you to filter the specific process or application reports. root@linuxhelp:/home/user1# smem --processfilter=" python" PID User Command Swap USS PSS RSS 10603 root /usr/bin/python /usr/bin/sm 0 5908 5936 8280
The ' -p' is used to view the memory usage in percentage mode.
root@linuxhelp:/home/user1# smem -p
PID User Command Swap USS PSS RSS
4331 user1 gnome-pty-helper 0.00% 0.00% 0.00% 0.04%
9101 root logger -t mysqld -p daemon 0.00% 0.00% 0.01% 0.07%
8947 root logger -p daemon err -t /et 0.00% 0.00% 0.01% 0.07%
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2107 user1 /usr/lib/evolution/evolutio 0.00% 0.08% 0.11% 0.44%
2244 user1 /usr/lib/x86_64-linux-gnu/z 0.00% 0.07% 0.11% 0.39%
1809 user1 compiz 0.00% 4.11% 4.28% 5.07%
The ' -tp' is used to view grant total of memory usage reports.
root@linuxhelp:/home/user1# smem -tp
PID User Command Swap USS PSS RSS
4331 user1 gnome-pty-helper 0.00% 0.00% 0.00% 0.04%
9101 root logger -t mysqld -p daemon 0.00% 0.00% 0.01% 0.07%
8947 root logger -p daemon err -t /et 0.00% 0.00% 0.01% 0.07%
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9100 mysql /usr/sbin/mysqld --basedir= 0.00% 2.13% 2.13% 2.23%
1809 user1 compiz 0.00% 4.11% 4.28% 5.07%
-------------------------------------------------------------------------------
116 13 0.00% 16.48% 18.43% 42.60%
To display the specific field reports, use the following command.
root@linuxhelp:/home/user1# smem --column " name user pss rss"
Name User PSS RSS
gnome-pty-helpe user1 180 1812
logger root 250 2684
logger root 251 2784
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mysqld mysql 85758 89764
compiz user1 172896 204472
If you want to view the memory usage in pie-chart format, run the following command.
root@linuxhelp:/home/user1# smem --pie name -s rss
You can also view your memory usage reports in bar diagram format with the help of below command.
root@linuxhelp:/home/user1# smem --bar name -c " pss rss"
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