Comments on: Linux find the memory used by a program / process using pmap command

By: tessa rodriguez

tessa rodriguez — Wed, 23 Nov 2011 08:55:00 +0000

let me know how to down load any app i wont to own acer500

By: Anonymous

Anonymous — Fri, 09 Sep 2011 15:30:28 +0000

Suse Enterprise Linux 10SP1 also lacks the -x option.

By: Anonymous

Anonymous — Tue, 08 Jun 2010 12:56:50 +0000

Can it be possible like shhoting the cpu usage to around 600%, the one we see while giving top command?

By: Anonymous

Anonymous — Tue, 25 May 2010 07:58:05 +0000

This prints process memory usage:
ps -p -o size=

By: Heapsize - Linux / UNIX Forum

Heapsize - Linux / UNIX Forum — Tue, 26 Jan 2010 06:47:34 +0000

[...] Linux find the memory used by a program / process using pmap command __________________ Rocky Jr. You may have my body & soul, but you will never touch my pride! If you have knowledge, let others light their candles at it. Certified to work on HP-UX / Sun Solaris / RedHat [...]

By: kiran

kiran — Sun, 21 Jun 2009 06:56:20 +0000

I think u must check on the netstat command also

By: Raghunatha Reddy

Raghunatha Reddy — Wed, 11 Mar 2009 05:04:52 +0000

i am using redhat linux 5.2 with UniVerse database. from last 20 day my server physical memory and CPU usage is 99% and 100% . i tried lot to resolve this problem . but i am not able to fix this problem. can any body help me. i am sending the out put of free -m and ipcs out put . server running in Runlevel 5
total used free shared buffers cached
Mem: 7741 7691 50 0 120 7244
-/+ buffers/cache: 326 7415
Swap: 1983 0 1983
#ipcs
—— Shared Memory Segments ——–
key shmid owner perms bytes nattch status
0xaceca200 32768 root 666 6852808 9
0×00000000 229377 gdm 600 393216 2 dest
0xaceb000e 64258051 tcsuser 600 10240 1
0xaceb000f 64290822 tcsuser 600 10240 1
0xaceb000c 64323591 tcsuser 600 10240 1
0xaceb0013 64356360 tcsuser 600 10240 1
0xacebdf50 73760777 jyg5506 600 10240 1
0xaceb0010 64389130 tcsuser 600 10240 1
0xaceb0017 64421900 tcsuser 600 10240 1
0xaceb0015 64454669 tcsuser 600 10240 1

—— Semaphore Arrays ——–
key semid owner perms nsems

—— Message Queues ——–
key msqid owner perms used-bytes messages
0xacea0207 0 root 666 0 0

#vmstat 2 5
procs ———–memory———- —swap– —–io—- –system– —–cpu—– -
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 0 656 50988 123184 7418868 0 0 2584 146 4 9 13 4 80 3 0
2 0 656 44864 123152 7415656 0 0 400 6 1056 132 86 14 0 1 0
1 0 656 53200 123160 7416428 0 0 406 178 1064 150 87 13 0 1 0
1 0 656 47832 123184 7417196 0 0 406 46 1053 134 85 14 0 2 0
1 0 656 47236 123184 7417960 0 0 366 16 1053 128 86 13 0 1 0

By: Adam

Adam — Thu, 03 Jul 2008 17:47:47 +0000

I am trying to find out why my Apache is using a massive amount of memory for simple usage. Then it starts using swap space even after only few requests. I am going to try to use this command to find out what Apache is using the memory for. I’m not sure if it is a memory leak and this tool might not help me, but I will find out.

By: siva

siva — Tue, 01 Apr 2008 10:23:14 +0000

hi!
every thing seems good, but how to calculate memory used and how top commnad and free are showing memory used, how they are calculating and showing the information.
thanks and regards
siva

By: Helal Uddin

Helal Uddin — Mon, 10 Mar 2008 03:52:04 +0000

thanks a lot for helping me.

By: spice

spice — Mon, 11 Feb 2008 20:48:29 +0000

I found a command ps -C syslogd -o pid=firefox that can be used to find memory usage of firefox and thought I’d pass it along.>
That command gives the process id of syslogd, not memory usage of anything.

By: Nate

Nate — Wed, 28 Nov 2007 20:59:58 +0000

pmap -x is what I meant.

By: Nate

Nate — Wed, 28 Nov 2007 20:58:40 +0000

Linux version 2.6.9-55.0.9.ELsmp (brewbuilder@hs20-bc1-7.build.redhat.com) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-8)) #1 SMP Tue Sep 25 02:17:24 EDT 2007

Usage: pmap [-x | -d] [-q] pid…
-x show details
-d show offset and device number
-q quiet; less header/footer info
-V show the version number

pmap -v exists in RHEL4

By: BT

BT — Sun, 25 Nov 2007 06:02:04 +0000

You must be root to use that command.
It works on ubuntu if you sudo pmap -x pid.

By: jj

jj — Sat, 24 Nov 2007 17:57:00 +0000

I believe what you are saying is you need to first establish the PID and then use pmap. I found a command ps -C syslogd -o pid=firefox that can be used to find memory usage of firefox and thought I’d pass it along.

P.S. the pmap -x perameter works in Ubuntu

By: vivek

vivek — Wed, 21 Nov 2007 05:51:54 +0000

Manoj,

You must be using older version update procps package.

By: Manoj

Manoj — Wed, 21 Nov 2007 03:25:14 +0000

-x option not found in redhat