Script to check the memory and process utilization

[Chakravarthi]

Hi all,

Is there any script which monitors a specific process, and informs the user about the CPU and memory utilization.

regards
chakri

[G. Vrijhoeven]

Hi,

You can use top ( free ) or glance ( evaluation version 60 days free) .

Gideon

[Chakravarthi]

I want a report for every 30 minutes, and this should be automated

[Chuck J]

You can use:

# glance -G

to report on a specific process.

Chuck J

[Stefan Farrelly · Accepted solution]

Put the following lines into a script, make it executable, and run it with an argument of the pid you want, it then shows you what you want.

echo "PID USER CPU% MEM_SIZE COMMAND"
while true
do
UNIX95= ps -eo "pid ruser pcpu vsz=Kbytes" -o comm |grep $1
sleep 1
done

[Chakravarthi]

Hi stefan,

Script doesnt show me all the process, i want to see the process which are started on command line,, they are not visible,

--chakri

[Stefan Farrelly]

your initial question said monitor a specific process - which the script I supplied will do.

So now you want to monitor all processes ? if so remove from the script the bit;
| grep $1

now it will show all processes every 1 second (you can easily adjust the interval by modifying the sleep value from 1 to whatever you want). Now when you run the script you can simply pipe it into grep for what you want (either a pid, or userid or command).

eg; ./<script> | grep

The script uses ps -e which shows ALL processes running at the instant it is run so you should be able to grep to find what you want from the output.

[Chakravarthi]

i corrected your script,, i can see them if i use -ef option, but when i use your script they are not visible

can you give me proper command syntax to use.

regards
chakri

[Stefan Farrelly]

Im not sure what you mean, but try changing the UNIX95 line to;

UNIX95= ps -eo "pid ruser pcpu vsz=Kbytes" -o args

If this still doenst do what you want please provide examples.

[Chakravarthi]

thanks

args is working fine

[Chakravarthi]

hi ste ,

if want to see memory utilization in %, then what is the option

regards
chakri

[Stefan Farrelly]

for an individual user what do you mean by %, % of what ? total memory in use on the server?

Heres a script to show total memory and free% for the whole server;

let x=$(grep -i physical: /var/adm/syslog/OLDsyslog.log|tail -1|awk '{print $2}')/1048
let z=$(vmstat|tail -1|awk '{print $5}')*4096;let z=$z/1000000
let free=100000/$x*$z
let free=$free/1000
let free=100-$free
echo "$x Mb physical memory \n$z Mb memory free \n$free % used"

To do it for an individual user is going to take some more scripting. Is that what you want ?

[Chakravarthi]

I WANT TO SEE HOW MUCH MEMORY THE PROCESS IS TAKING IN % LIKE CPU STATS