[Kapil]

I want to gather data regarding the CPU, MEM utilization (which i can get using top command), how can i store the top command output in a file, infact how can i make a cronjob to do this status updation automatically say after every half an hour so that it will help me to understand
the strength of the server resources like Memory, CPU etc.

After storing top command output in file, i want to kill this top command process also (becoz top command itself takes a bit of memory/cput using)


thanks for any help in advance.

[Dolda2000]

You might want to check out the sysstat package.
If you don't find that to your liking, you want to check out these commands:

uptime
free
ps --no-headers -A -o "%cpu sz ucomm" | sort +0r | head

Since you can put anything you want into the output sepc to ps, this is quite flexible.
The you can put it in a cron job or wherever you want to.

But like I said, check out the sysstat package first of all.

[srinilinux]

You can follow the steps mentioned below to see the data by top command simultaneously when you run your program.( These steps do not tell how to log the top command.)
- run your program (.exe) in the Foreground, This should be a lengthy process
- Press CTRL+z (not CTRL+c) , this will put your (.exe) into background. You can verify this using ps command.
- now issue the top command while your (.exe) is running in the backend
- Monitor the CPU Utilization
- Now, if you want to revert back to see what (.exe) is doing you can do the reverse of above steps,
That is,
- Press CTRL+z (not CTRL+c) , this will put top into background, and your prompt returns
- Now issue fg command which will put the (.exe) process into foreground

-Srinivas.B.N