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Unable to find 8 gb of memory

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Operating Systems Solaris Unable to find 8 gb of memory
# 1  
Old 08-15-2009
Unable to find 8 gb of memory
I 've one box with 16gb of RAM and top, vmstat showing 8712M free , i 'm unable to find which process is eating up rest of the memory , the system is not running anything at the moment.
# 2  
Old 08-15-2009
try top or prstat -a command to check which process is using memory
# 3  
Old 08-15-2009
i already said i used top .. prstat -a o/p is following .. can u tell me which one is the culprit

Code:
   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
 14227 root       11M 9880K sleep   59    0   0:00:59 0.1% ldmd/13
 14270 root     3944K 3656K cpu23   59    0   0:00:00 0.0% prstat/1
 13842 root     6656K 5192K sleep   59    0   0:00:00 0.0% sshd/1
 13893 root     1760K 1480K sleep   59    0   0:00:00 0.0% sh/1
 13913 root     2768K 1968K sleep   59    0   0:00:00 0.0% telnet/1
  1252 root       11M 8944K sleep   59    0   0:00:39 0.0% avagent.bin/8
  1200 root       14M   11M sleep   59    0   0:03:15 0.0% naviagent/2
   890 root     2736K 1872K sleep   59    0   0:00:03 0.0% vntsd/8
   894 root     4656K 1536K sleep   59    0   0:00:00 0.0% sshd/1
   856 root     2632K 1472K sleep   59    0   0:00:00 0.0% in.rarpd/3
   926 root     3936K 2224K sleep   59    0   0:00:00 0.0% rpc.metad/1
   896 root       10M 3968K sleep   59    0   0:00:21 0.0% snmpd/1
 14202 root       19M   17M sleep   59    0   0:00:04 0.0% fmd/26
   697 root     1768K  216K sleep   59    0   0:00:00 0.0% efdaemon/1
   853 root     1720K  880K sleep   59    0   0:00:02 0.0% utmpd/1
   817 root     2568K 1024K sleep   59    0   0:00:00 0.0% sac/1
   877 root     1760K 1472K sleep   59    0   0:00:00 0.0% sh/1
  9127 root     3496K 2704K sleep   59    0   0:00:00 0.0% bash/1
   645 root     3112K 1048K sleep  100    -   0:01:44 0.0% xntpd/1
   916 root     3976K  776K sleep   59    0   0:00:00 0.0% mdmonitord/1
   402 root       11M 8872K sleep   59    0   0:01:42 0.0% nscd/30
   849 root       12M 7248K sleep   59    0   0:00:15 0.0% inetd/4
   841 root     2968K 1016K sleep   59    0   0:00:00 0.0% ttymon/1
   425 daemon   5216K 3192K sleep   59    0   0:00:08 0.0% kcfd/5
   716 root     3328K 1208K sleep   59    0   0:00:00 0.0% cron/1
   435 root     8616K 6680K sleep   59    0   0:03:10 0.0% picld/53
   415 root     6376K 1928K sleep   59    0   0:00:00 0.0% syseventd/15
   811 daemon   3528K 2672K sleep   59    0   0:00:00 0.0% rpcbind/2
 13916 root     6656K 5192K sleep   59    0   0:00:00 0.0% sshd/1
   815 root     2808K 1536K sleep   59    0   0:00:00 0.0% rpc.bootparamd/1
   365 root     8184K 4976K sleep   59    0   0:00:06 0.0% devfsadm/12
   843 root     4200K 2656K sleep   59    0   0:00:01 0.0% syslogd/9
     9 root       12M 8824K sleep   59    0   0:01:06 0.0% svc.configd/15
     7 root       20M   17M sleep   59    0   0:00:23 0.0% svc.startd/13
   396 root     2976K 2000K sleep   59    0   0:00:00 0.0% drd/3
     1 root     3016K 1120K sleep   59    0   0:00:04 0.0% init/1
 NPROC USERNAME  SWAP   RSS MEMORY      TIME  CPU
    46 root      103M  128M   0.8%   0:13:57 0.1%
     6 daemon     36M   38M   0.2%   0:01:10 0.0%

# 4  
Old 08-15-2009
What says:
Code:
kstat -n system_pages | grep "\<p"

?
# 5  
Old 08-15-2009
Code:
bash-3.00# kstat -n system_pages | grep "\<p"
name:   system_pages                    class:    pages
        pagesfree                       1084562
        pageslocked                     925088
        pagestotal                      2028340
        physmem                         2058787
        pp_kernel                       1029524
bash-3.00#

but what does it mean ?
# 6  
Old 08-15-2009
It means you have 15.70 GB visible to the OS, of which 8.27 GB are free and 7.85 GB used by the kernel.
That might just be some harmless cache if you are using ZFS or pages locked by some (even not running) applications using shared memory.
# 7  
Old 08-15-2009
ldmd is running. Do you have ldoms configured on this system?
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