02-08-2011
collecting memory usage by a process
Hi Guys,
I work on a AIX environment and I'm trying to write a script where I can collect all the memory used by a process. Basically I'm executing the command 'ps -fu userid' to get all the process ids and then executing the 'ps v PID' to get all the memory allocated by PPID. My question is when I issue the 'ps v PID' command I get the following columns: PID TTY STAT TIME PGIN SIZE RSS LIM TSIZ TRS %CPU %MEM COMMAND. So now should I be using the SIZE column to sum the total amount of memory used by a process. In my case these userids are DB2 instances as I work with DB2. DB2 also has it own commands that I can used by I would to get the number from the OS first then compare it with the one provided by DB2. Please any comments are higlhly appreciated. Thanks.
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