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Operating Systems Solaris resource worries
# 1  
Old 04-14-2005
resource worries
When I run the prstat -a command I get the following output for user oracle.

NPROC USERNAME SIZE RSS MEMORY TIME CPU
118 oracle 70G 30G 100% 4:38:03 52%

The reading under the "MEMORY" heading is 100%. What does this mean? I hope it doesn't mean user oracle is using 100% of the available physical memory?
# 2  
Old 04-14-2005
Pretty much. I don't use that command and I'm not sure if it's accurate or not. RSS is 30G, how much memory do you have? 30 GB is a lot of memory to be using.
# 3  
Old 04-14-2005
RSS is the memory "Resident Set Size" of the process.

I suggest you run a "prtconf -v" or "prtdiag -v" and check how much physical memory you have on the system. Then check your swap free, e.g. swap -s and then and confirm with a swap -l to see how many 512k blocks you have used up. Next run a "vmstat 5 5" to take a quick look at the current memory consumption on the system.

On Solaris systems you allocate a certain amount of memory to Oracle, so it's also worth checking the Oracle memory allocation in /etc/system. Try getting one of your DBA's to also run a "show sga" for your instance, as it may need tuning. It could also be some rogue SQL process that is killing the machine?
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