Solaris

Hello All,

My Server RAM utilization is exceeding 90% and i would like to idnetify the per process RAM utilization..

We are using Solaris 10 10/9 OS release...

Is there any way achieve this ??? Definitely not interested in any of the third party tool but some Solaris command...

thank you...

Code:

prstat -s rss

Anticipating the next questions:

- the kernel is also using RAM, it isn't reported by prstat
- unused RAM is wasted RAM, don't focus on RAM utilization but on the vmstat sr (scan rate) column if you suspect RAM shortage.

Thanks for the replies guys and apolgies for the delay in my response.
@bartus11 : I tried the command prstat -s rss, but got little confused with the
Oracle processes memory utilization

@jlliagre : i dont see any shortage in RAM on the server but need a more clarity in its utilization.

Additional info is as follows:
1. Server hosts oracle DB.
2. We have a monitoring tool which polls the server through SNMP and collects data. This tool displays the utilization as 95% but when I see prstat (sorting it by rss) gives total RAM > Server RAM.
As i understand, the oracle proceses use a shared memory due to which there is less clarity in total RAM utilization.
Is there any other we can get a closer utilzation details?
thank you.

If you only want to get physical memory utilization, then try this:

Code:

echo "::memstat" | mdb -k

The fact shared memory is used is indeed the reason why the reported values might seem confusing. You might try running

Code:

prstat -a

and see if the reported rss values per user are clearer.

In any case, if you want to get detailed memory usage per process, use the pmap command.