[SOLVED] centos 5.2 uses 17.4 GB out of 17.9 GB

malayo · 01-04-2012, 09:59 PM

on a 64-bit centos 5.2 with gnome installed along with netvault backup server, free -m shows

Code:

# free -m
             total       used       free     shared    buffers     cached
Mem:         17900      17485        414          0         16      14062
-/+ buffers/cache:       3407      14493
Swap:        19519          0      19519

but top shows

Code:

# top
top - 11:43:44 up 30 days,  3:07,  5 users,  load average: 2.93, 3.18, 2.92
Tasks: 266 total,   6 running, 259 sleeping,   1 stopped,   0 zombie
Cpu(s): 16.3%us, 20.7%sy,  0.0%ni, 58.6%id,  4.3%wa,  0.0%hi,  0.2%si,  0.0%st
Mem:  18330152k total, 18147728k used,   182424k free,    14912k buffers
Swap: 19988472k total,      260k used, 19988212k free, 14832720k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 5627 root      18   0 23256 3328 1608 R   75  0.0  26:38.04 nvlogdaemon
 5622 root      18   0  898m 878m 1748 R   75  4.9  20:30.18 nvavp
 5631 root      15   0 30356 9596 2272 R   51  0.1  16:13.65 nvmedmgr
 5620 root      15   0  802m 783m 1220 R   10  4.4   3:02.34 nvcmgr
 5659 root      15   0 37248  16m 1484 R    7  0.1   2:13.26 nvchgmgr
  458 root      15   0     0    0    0 S    1  0.0   4:12.20 pdflush
  778 root      10  -5     0    0    0 S    1  0.0   1:33.96 kjournald
 5621 root      15   0 21824 2476 1404 S    1  0.0   0:11.76 nvnmgr
 5866 root      15   0 12720 1200  804 R    1  0.0   0:00.10 top
  457 root      15   0     0    0    0 S    0  0.0   5:30.22 pdflush
 4055 intermap  15   0 95428  68m 7284 S    0  0.4  22:07.85 intermapperd
    1 root      15   0 10328  696  584 S    0  0.0   0:01.88 init
    2 root      RT  -5     0    0    0 S    0  0.0   0:00.02 migration/0
    3 root      34  19     0    0    0 S    0  0.0   0:00.00 ksoftirqd/0
    4 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/0
    5 root      RT  -5     0    0    0 S    0  0.0   0:00.06 migration/1
    6 root      34  19     0    0    0 S    0  0.0   0:00.00 ksoftirqd/1
    7 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/1
    8 root      RT  -5     0    0    0 S    0  0.0   0:00.01 migration/2
    9 root      34  19     0    0    0 S    0  0.0   0:00.01 ksoftirqd/2
   10 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/2
   11 root      RT  -5     0    0    0 S    0  0.0   0:00.05 migration/3
   12 root      34  19     0    0    0 S    0  0.0   0:00.01 ksoftirqd/3
   13 root      RT  -5     0    0    0 S    0  0.0   0:00.00 watchdog/3
   14 root      RT  -5     0    0    0 S    0  0.0   0:00.00 migration/4
   15 root      34  19     0    0    0 S    0  0.0   0:00.00 ksoftirqd/4

running services

Code:

# netstat -tuanp | grep LISTEN
tcp        0      0 127.0.0.1:20032             0.0.0.0:*                   LISTEN      5620/nvcmgr
tcp        0      0 0.0.0.0:59462               0.0.0.0:*                   LISTEN      -     
tcp        0      0 0.0.0.0:710                 0.0.0.0:*                   LISTEN      3496/rpc.statd
tcp        0      0 127.0.0.1:199               0.0.0.0:*                   LISTEN      3841/snmpd
tcp        0      0 0.0.0.0:5900                0.0.0.0:*                   LISTEN      5557/vino-server
tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      3468/portmap
tcp        0      0 0.0.0.0:6162                0.0.0.0:*                   LISTEN      4142/epilog
tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN      3867/cupsd
tcp        0      0 0.0.0.0:88                  0.0.0.0:*                   LISTEN      3557/vmware-convert
tcp        0      0 0.0.0.0:25                  0.0.0.0:*                   LISTEN      3899/sendmail: acce
tcp        0      0 127.0.0.1:6010              0.0.0.0:*                   LISTEN      5073/6
tcp        0      0 0.0.0.0:444                 0.0.0.0:*                   LISTEN      3557/vmware-convert
tcp        0      0 0.0.0.0:20031               0.0.0.0:*                   LISTEN      5621/nvnmgr
tcp        0      0 :::52736                    :::*                        LISTEN      4242/Foglight 5.5.5
tcp        0      0 ::ffff:127.0.0.1:44488      :::*                        LISTEN      4242/Foglight 5.5.5
tcp        0      0 :::80                       :::*                        LISTEN      3930/httpd
tcp        0      0 :::57525                    :::*                        LISTEN      4242/Foglight 5.5.5
tcp        0      0 :::8181                     :::*                        LISTEN      4055/intermapperd
tcp        0      0 :::22                       :::*                        LISTEN      3856/sshd
tcp        0      0 :::8184                     :::*                        LISTEN      3951/ns2flows
tcp        0      0 :::88                       :::*                        LISTEN      3557/vmware-convert
tcp        0      0 ::1:6010                    :::*                        LISTEN      5073/6
tcp        0      0 :::443                      :::*                        LISTEN      3930/httpd
tcp        0      0 :::444                      :::*                        LISTEN      3557/vmware-convert

now applications running quite sluggish, especially nvgui.

malayo · 01-04-2012, 10:20 PM

maybe i looked at the wrong line, do i suppose to look at this instead?

Code:

-/+ buffers/cache:       3407      14493

John VV · 01-04-2012, 10:22 PM

First CentOS 5.2 has been unsupported for many years ( since march 2009 )
Please upgrade to the current, and ONLY supported version, CentOS 5.7 and soon 5.8 .

You have not installed the security updates for the ,almost, past 3 years .

what you have not posted is the needed information
the partition size and the % used

Code:

su -
fdisk -l

but i am betting you have not emptied out the /tmp folder and the logs in /var/log in over 3 years
please do so .

syg00 · 01-04-2012, 10:24 PM

So you've described two symptoms, but not the problem. Maybe you should read this.
Then perhaps you should check how many running tasks you have (one of which is top itself) - interesting ???.

malayo · 01-04-2012, 10:34 PM

i see, i actually had 14 GB which some of it is being borrowed by kernel for disk caching.