100% memery usage in prstat

Asteroid · 11-03-2009, 06:00 AM

Hi Guys,

I have observed the Oracle (DB USER) is utilizing 100% of the memory in the prstat -a output. I am bit confused is it normal and if not how to bring it down? ABout the machine it is a SunOS 5.10 Generic_125100-10 sun4v sparc SUNW,Sun-Fire-T200.

Please see below output of prstat -a
I have made bold the utilization...

Quote:

bash-3.00# prstat -a
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
26879 sogadm 517M 416M sleep 59 0 74:17:12 5.7% java/50
29064 sogadm 278M 176M sleep 59 0 22:58:58 1.2% java/117
11385 sogadm 53M 40M sleep 59 0 3:19:10 0.3% FDSServer/101
1471 root 8752K 8752K cpu1 39 0 0:00:03 0.2% prstat/1
228 root 7192K 4088K sleep 59 0 1:53:48 0.1% nscd/28
5956 emadba 44M 25M sleep 59 -20 1:21:04 0.1% ocssd.bin/15
21113 sogadm 220M 121M cpu0 59 0 0:37:36 0.1% PluginContainer/214
11387 sogadm 52M 38M sleep 59 0 0:45:20 0.1% FDSServer/77
2383 root 1464K 768K sleep 50 0 0:43:41 0.0% init.cssd/1
11688 emadba 1160M 907M sleep 59 0 0:38:00 0.0% oracle/1
5691 root 70M 55M sleep 59 0 1:01:34 0.0% crsd.bin/45
22319 sogadm 568M 544M sleep 59 0 0:23:20 0.0% PluginContainer/181
5794 emadba 36M 18M sleep 59 0 0:37:22 0.0% oclsomon.bin/1
8924 emadba 1160M 1107M sleep 59 0 0:29:25 0.0% oracle/1
11682 emadba 1153M 903M sleep 59 0 0:28:41 0.0% oracle/1
1 root 2504K 696K sleep 59 0 0:25:51 0.0% init/1
11808 emadba 1152M 902M sleep 59 0 0:30:46 0.0% oracle/1
11737 emadba 1162M 902M sleep 100 - 0:22:48 0.0% oracle/1
11729 emadba 1162M 902M sleep 100 - 0:22:55 0.0% oracle/1
11725 emadba 1162M 902M sleep 100 - 0:22:51 0.0% oracle/1
11733 emadba 1162M 902M sleep 100 - 0:22:47 0.0% oracle/1
8961 emadba 1162M 1102M sleep 100 - 0:23:28 0.0% oracle/1
8974 emadba 1162M 1102M sleep 100 - 0:23:25 0.0% oracle/1
8970 emadba 1162M 1102M sleep 100 - 0:23:23 0.0% oracle/1
8995 emadba 1162M 1102M sleep 100 - 0:23:21 0.0% oracle/1
29517 sogadm 55M 37M sleep 59 0 0:20:08 0.0% PluginContainer/99
28556 sogadm 281M 126M sleep 59 0 0:21:17 0.0% java/58
24721 sogadm 46M 24M sleep 59 0 0:20:14 0.0% PluginContainer/93
2228 root 35M 2104K sleep 100 - 0:41:18 0.0% rpc.pmfd/79
13099 sogadm 83M 57M sleep 59 0 0:16:22 0.0% PluginContainer/333
NPROC USERNAME SIZE RSS MEMORY TIME CPU
46 sogadm 3427M 2107M 0.2% 107:28:27 7.7%
1208 emadba 1326G 1062G 100% 12:03:42 0.6%
80 root 778M 220M 0.0% 5:49:12 0.5%
1 batchadm 15M 976K 0.0% 0:04:20 0.0%
1 noaccess 163M 66M 0.0% 0:05:58 0.0%
3 spmadmin 61M 0K 0.0% 0:00:00 0.0%
1 smmsp 7392K 1496K 0.0% 0:00:01 0.0%
4 daemon 12M 2664K 0.0% 0:00:04 0.0%

Thx.

jlliagre · 11-03-2009, 07:38 AM

Is there one terabyte or RAM installed on your box ?

PS: Please use code tags instead of quote ones.

Asteroid · 11-03-2009, 07:48 AM

Its 8G of memory installed.

Code:

bash-3.00# prtdiag -v | grep Memory
Memory size: 8184 Megabytes

jlliagre · 11-03-2009, 08:57 AM

Then you can safely ignore that statistic which incorrectly sum shared memory segments.

Have a look at the last sentence of the prstat manual page.