Top on Solaris

[g_raju]

Top command on Solaris

I type 'top' in solaris and see many processes running:


PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
20408 oratst 1 52 0 190M 171M sleep 0:02 2.35% oracle
20410 oratst 1 54 0 190M 171M sleep 0:02 1.14% oracle
20480 root 1 0 0 2320K 1288K cpu/1 0:00 0.60% top
20479 oratst 1 0 0 30M 9232K sleep 0:00 0.31% oracle
20477 oratst 1 0 0 30M 9232K sleep 0:00 0.23% oracle
20471 oratst 1 0 0 30M 9232K sleep 0:00 0.18% oracle
20473 oratst 1 0 0 30M 9232K sleep 0:00 0.17% oracle

Should I be worried about what 190M is as a size, given that there are several hundred of these processes - it sounds like a lot of memory being used - how can I change this?

Thanks
Raj

[marist89]

Fear not.

Top lies when it reports the amount of memory used because it doesn't indicate that most of that memory is shared memory. Each session shares memory with the memory allocated for the SGA. /usr/proc/bin/pmap is a better indicator of where the memory is allocated.