memory usage very high

karlochacon · 02-18-2011, 12:13 PM

hi guys

my suse 10 Sp3 is consuming too much memory but I don't which process/processes are.
this is top by memory usage

Code:

top - 12:02:46 up 183 days, 13:57,  6 users,  load average: 0.15, 0.25, 0.56
Tasks: 202 total,   1 running, 201 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.3%us,  0.1%sy,  0.0%ni, 99.6%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:     16220M total,    15366M used,      854M free,      514M buffers
Swap:     2047M total,        0M used,     2047M free,    13744M cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 6950 root      15   0  456m 339m 5788 S    1  2.1 539:34.72 nco_p_mttrapd
30820 root      16   0  570m  75m 2528 S    0  0.5   6:07.82 java
20502 root      15   0  111m  55m  12m S    0  0.3   0:44.62 ncp_disco
 6838 root      16   0 1074m  42m 7944 S    2  0.3 859:37.19 nco_objserv
31313 root      15   0  159m  41m  12m S    0  0.3   1:01.28 ncp_poller
30461 root      15   0 92084  41m  11m S    0  0.3   1:45.03 ncp_ncogate
28923 root      15   0 90580  40m  10m S    0  0.3   0:11.85 ncp_model
22447 root      15   0 85112  36m  12m S    0  0.2   0:00.78 ncp_disco_perl_
 7056 root      16   0  580m  32m 3932 S    0  0.2   0:22.35 java
29005 root      15   0 58716  32m 4772 S    0  0.2   0:09.16 ncp_f_amos
27124 root      15   0 60832  28m 4272 S    0  0.2   0:05.10 ncp_store
 6953 root      15   0  962m  27m 6680 S    0  0.2 110:28.70 nco_g_odbc
20628 root      15   0  114m  21m  12m S    0  0.1   0:02.65 ncp_dh_snmp
 7058 root      16   0  542m  21m 1896 S    0  0.1   9:12.74 java
15608 root      16   0  132m  18m  10m S    0  0.1  12:58.44 klzagent
18415 root      16   0  105m  17m 9452 S    0  0.1  58:38.83 knoagent
27125 root      15   0 63032  15m  10m S    0  0.1   0:00.25 ncp_class
19809 root      16   0 98964  14m 9596 S    0  0.1  70:39.46 knpagent
22394 root      15   0 48784  14m 5284 S    0  0.1   0:05.65 ncp_agent
 5029 root      -2   0 12332  12m 4432 S    0  0.1   0:18.80 heartbeat
13177 root      16   0 16812  11m 2916 S    0  0.1   0:02.91 Xvnc
27383 root      16   0 16040  10m 2868 S    0  0.1   0:06.59 Xvnc
 5034 root      16   0 13140 9280 1644 S    0  0.1   0:05.68 miniserv.pl
 4835 root      19   0  137m 9032 3928 S    0  0.1   0:17.78 nco_pad
19660 root      15   0 50476 7792 4684 S    0  0.0   0:01.44 ncp_d_helpserv
22263 root      15   0 38948 7308 5376 S    0  0.0   0:00.16 ncp_agent
27128 root      15   0 40916 7268 5072 S    0  0.0   0:00.37 ncp_config
23442 root      15   0 38936 7232 5424 S    0  0.0   0:00.03 ncp_agent
22378 root      15   0 43464 7212 5192 S    0  0.0   0:00.16 ncp_agent
22234 root      15   0 41988 7192 5184 S    0  0.0   0:00.04 ncp_agent
27129 root      15   0 34908 6860 5528 S    0  0.0   0:00.07 nco_p_ncpmonito
23331 root      15   0 40216 6740 5192 S    0  0.0   0:00.03 ncp_agent
22217 root      15   0 40224 6716 5200 S    0  0.0   0:00.07 ncp_agent
23176 root      15   0 43780 6700 5168 S    0  0.0   0:00.06 ncp_agent
23422 root      15   0 39164 6668 5172 S    0  0.0   0:00.04 ncp_agent
21522 root      16   0 38424 6656 4796 S    0  0.0   0:28.01 kcawd
24560 root      15   0 43784 6608 5380 S    0  0.0   0:01.33 ncp_dh_telnet
22428 root      15   0 39148 6596 5264 S    0  0.0   0:00.05 ncp_agent
22293 root      15   0 40140 6544 5140 S    0  0.0   0:00.03 ncp_agent

any idea or troubleshooting?
thanks a lot

johnsfine · 02-18-2011, 12:44 PM

Quote:

Originally Posted by karlochacon

my suse 10 Sp3 is consuming too much memory

There is no problem. You are misunderstanding the statistics.

Read this:
http://www.linuxatemyram.com/

The simplistic view expressed in that page, especially the claim that the ram reported as buffers and cache is effectively free, is not correct for all Linux systems. But it is correct for your system.

When cache is a small fraction of total ram, it is probable that a significant amount of soft faulting is occurring, so the ram represented by cache is not effectively free.

But when cache is a large fraction of total ram, significant soft faulting is unlikely, so the cache memory is effectively free memory.

AlucardZero · 02-18-2011, 12:44 PM

Yes, check your understanding of Linux memory usage:

http://www.linuxatemyram.com/