How to measure solaris process memory usage?

Question

How to check how much memory a solaris process consumes? I'd like both total address space allocated and the amount that is resident in RAM.

I tried summing pmap output with some awk script, but it was an ugly hack. Is there a better way to script it?

Answer 1

prstat

Or maybe a dtrace-script?

Answer 2

1. prstat -s rss

   '-s' sorts prstat output by rss column (see man page for other columns). Also try '-a' option for a per user accumulation.

2. ps -eo pid,pmem,vsz,rss,comm | sort -rnk2 | head

   Top 10 RAM consumers. '-o pmem' displays percentage of resident memory i.e. RAM used by process.

3. ls -lh /proc/{pid}/as

   Easy way to show total address space (vsz) of a process. Useful in combination with pgrep to accumulate by user, pattern, ... e.g.:

   for pid in `pgrep -U webserver`; do ls -lh /proc/$pid/as; done
   

Answer 3

Well, after I've read through some man pages I got the following

ps -o vsz -p $PID | tail -1

It is quite straightforward. The format for resident size is rss.

Answer 4

My $.02 as the Zenoss Community Manager...

Zenoss can monitor the health of all your network devices and servers, as well as the processes running on you servers. One of our Community members recently submitted Process Monitoring for Solaris via SNMP: http://community.zenoss.org/docs/DOC-5882