How to find memory taken by a process using top command?

 
Thread Tools Search this Thread
Operating Systems Linux Red Hat How to find memory taken by a process using top command?
# 1  
Old 01-23-2013
How to find memory taken by a process using top command?

I wanted to know how to find the memory taken by a process using top command. The output of the top command is as follows as an example:

Code:
Mem:  13333364k total, 13238904k used,    94460k free,   623640k buffers
Swap: 25165816k total,      112k used, 25165704k free,  4572904k cached

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
16514 applmgr   25   0 2197m 1.7g  10m S  0.3 13.0  15:20.67 java
30692 crestelo  22   0 2901m 1.4g 9284 S  0.0 11.0   3:03.68 java
30431 crestelo  25   0 2043m 1.4g 161m S 50.9 11.0  79:02.73 java
30869 crestelo  25   0 2860m 1.2g 9292 S  0.0  9.6   7:11.18 java
16655 applmgr   23   0 1934m 1.1g  10m S  0.3  8.9   2:17.49 java
16319 crestelo  19   0 1541m 299m  44m S  0.0  2.3   2:52.11 java

I hope, my question is clear as to how to find the memory taken by a process using top command.

Please revert with the reply to my query.

Regards

Last edited by Scott; 01-23-2013 at 05:49 AM.. Reason: Code tags, please...
# 2  
Old 01-23-2013
n: %MEM -- Memory usage (RES)
A tasks currently used share of available physical memory.
# 3  
Old 01-24-2013
Thanks for your answer but I was looking at the amount of memory taken by a process and not the % of CPU used by a process.
# 4  
Old 01-24-2013
%MEM is % of memory used and not % of CPU used by a process.

For knowing amount you can rely on field RES
PHP Code:
 
RES  
--  Resident size (kb)
          
The non-swapped physical memory a task has used.
          
RES CODE DATA
there are few more fields from which you can collect memory size related information...

PHP Code:
       oVIRT  --  Virtual Image (kb)
          
The  total  amount  of  virtual memory used by the task.  It includes all codedata and shared libraries plus pages that have been
          swapped out
. (Noteyou can define the STATSIZE=1 environment variable and the VIRT  will  be  calculated  from  the  /proc/#/state
          
VmSize field.)
          
VIRT SWAP RES.
       
pSWAP  --  Swapped size (kb)
          
The swapped out portion of a taskâs total virtual memory image.
       
qRES  --  Resident size (kb)
          
The non-swapped physical memory a task has used.
          
RES CODE DATA.
       
rCODE  --  Code size (kb)
          
The amount of physical memory devoted to executable codealso known as the âtext resident setâ size or TRS.
       
sDATA  --  Data+Stack size (kb)
          
The amount of physical memory devoted to other than executable codealso known as the âdata resident setâ size or DRS.
       
tSHR  --  Shared Mem size (kb)
          
The amount of shared memory used by a task.  It simply reflects memory that could be potentially shared with other processes
# 5  
Old 01-24-2013
I was wondering how to get the options for SWAP, CODE. Can you please give the syntax to give with the top command?
# 6  
Old 02-26-2013
For top command

To sort process as per swap page usage

Capital O followed by p (small p) andthen Enter key

not this is wat or something other u look
# 7  
Old 02-27-2013
Would the output of ps do the trick?
Code:
ps -lp $PID

Column 10 has the memory size allocated.

Code:
ps -lp $$
F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
4 S  7006 10701 10700  0  80   0 - 26772 wait   pts/9    00:00:00 ksh

This has my shell process being 26,772Kb


Robin
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Kill top 5 memory uses process

Hi All, how to kill 5 top memory used process in my hp-ux. Thanks, Kki (9 Replies)
Discussion started by: kki
9 Replies

2. HP-UX

Find out most memory consumption process in HP UX

Dear All, I want to find out top 15 memory consumption processes in HP UX. Can anyone give me any idea about it? Kauser (2 Replies)
Discussion started by: makauser
2 Replies

3. Shell Programming and Scripting

How to find which process consumes more memory

in our Oracle DB server, the free RAM is very low. we would like to know which process consumes more RAM what is the comand I can use ? (1 Reply)
Discussion started by: johnveslin
1 Replies

4. Solaris

Free memory in top and prstat command

Hi Export, i execute 'top' command to show the free memory in Solaris host, but the read is much lower than the RSS value shown in prstat command. Which one can reflect the real status and it is possible the difference caused by any patch of OS? Top command (only 883 memory is free)... (3 Replies)
Discussion started by: eiga
3 Replies

5. Shell Programming and Scripting

Command to find the Memory and CPU utilization using 'top' command

Hi all, I found like top command could be used to find the Memory and CPU utilization. But i want to know how to find the Memory and CPU utilization for a particular user using top command. Thanks in advance. Thanks, Ananthi.U (2 Replies)
Discussion started by: ananthi_ku
2 Replies

6. AIX

Need a list of top 10 CPU using processes (also top 10 memory hogs, separately)

Okay, I am trying to come up with a multi-platform script to report top ten CPU and memory hog processes, which will be run by our enterprise monitoring application as an auto-action item when the CPU and Memory utilization gets reported as higher than a certain threshold I use top on other... (5 Replies)
Discussion started by: thenomad
5 Replies

7. AIX

Command to find TOP 5 Memory consuming process

HI All, Can anyone send me a command to find TOP 5 Memory consuming process. It would be lelpful if I get output something like below processname - pid - memory(in MB) - command I tried few commands from the internet but the result only give the real memory usage or pagging, I want total... (4 Replies)
Discussion started by: bce_groups
4 Replies

8. Shell Programming and Scripting

how can i extract only the Memory line from top command ?

Hello all i need in csh to extract only the Memory line from the out put of the top command how can it easily done (1 Reply)
Discussion started by: umen
1 Replies

9. UNIX for Advanced & Expert Users

unix top command (memory usage)

in unix when i use top i get an output like this: load averages: 0.64, 0.57, 0.53 14:04:42 347 processes: 1 running, 1 waiting, 169 sleeping, 172 idle, 4 stopped CPU states: 16.4% user, 2.8% nice, 7.6%... (2 Replies)
Discussion started by: gfhgfnhhn
2 Replies

10. HP-UX

How to find memory used by a process

Hi, Can anyone help me out in writing the shell scrip which monitors a process which is running and gives me the output of the memory being used by the process, I have the requirement of monitorig the memory usage of the process when it is running. Please help me out (3 Replies)
Discussion started by: vijayagiri
3 Replies
Login or Register to Ask a Question