Oracle Database Discussions

Hi,

How to find solaris server actual memory usage?
My server is Solaris SPARC 5.8

I know there is prstat utility to find the system perfrmance including cpu, memory, paging....etc.

but prstat doesnt sho actual memory usage. For example:

$ prstat -a
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
18203 oracle 4430M 4347M cpu3 10 0 0:00.09 7.0% oracle/1
7396 oracle 4430M 4350M sleep 22 0 5:05.33 2.5% oracle/1
12147 oracle 4434M 4358M sleep 59 0 0:03.05 1.8% oracle/1
7390 oracle 4431M 4349M sleep 23 0 2:12.57 0.9% oracle/1
16571 oracle 4431M 4350M sleep 59 0 0:00.01 0.5% oracle/1
18042 oracle 4431M 4345M sleep 55 0 0:00.01 0.4% oracle/1
12618 oracle 4435M 4359M sleep 58 0 0:00.03 0.3% oracle/1
13801 oracle 4436M 4360M sleep 28 0 0:00.10 0.3% oracle/1
25836 oracle 26M 7752K sleep 32 0 0:06.09 0.3% tnslsnr/6
10190 oracle 4431M 4351M sleep 54 0 0:00.13 0.2% oracle/1
12528 oracle 4436M 4355M sleep 59 0 0:00.06 0.2% oracle/1
16052 oracle 4435M 4358M sleep 10 0 0:00.03 0.2% oracle/1
7388 oracle 4430M 4352M sleep 48 0 0:19.54 0.1% oracle/1
12405 oracle 4430M 4349M sleep 51 0 0:00.26 0.1% oracle/1
14192 oracle 4431M 4350M sleep 59 0 0:00.04 0.1% oracle/1
NPROC USERNAME SIZE RSS MEMORY TIME CPU
308 oracle 1308G 1284G 100% 10:15.41 17%
39 root 116M 61M 0.0% 0:10.29 0.1%
1 daemon 2544K 1184K 0.0% 0:00.00 0.0%


Total: 348 processes, 1157 lwps, load averages: 0.88, 0.77, 0.77

in the above, it shows that 1308Gb is been used totaly. But actually I have 8 gb total in system. More over for each process it shows as 443x mb as used. This is my SGA size(4430). I believe from the above list, it shows the sga size for each process as memory used.

can anybody give me to find corrct memory usage?