Vmstat fault section all values are 0


 
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Old 02-15-2013
Vmstat fault section all values are 0

Hi all,

Recently I facing problem with my AIX server. we experience slowness on performance. there are some application installed in this server such as : Oracle 10g database, control-m client agent, and some monitoring tools.

when we're facing the problem we're noticing that vmstat value a bit strange,
below are the output :

Code:
$ vmstat 5

System configuration: lcpu=12 mem=53248MB

kthr    memory              page              faults        cpu
----- ----------- ------------------------ ------------ -----------
r  b   avm   fre  re  pi  po  fr   sr  cy  in   sy  cs us sy id wa
1  0 5370602 22908   0   0   0   0    0   0   0    0   0  0  0 99  0
1  0 5370600 22910   0   0   0   0    0   0   0    0   0  3  0 97  0
1  0 5370594 22916   0   0   0   0    0   0   0    0   0  1  0 99  0
1  0 5370598 22911   0   0   0   0    0   0   0    0   0  0  0 99  0
1  0 5370596 22912   0   0   0   0    0   0   0    0   0  3  0 97  0
0  0 5370596 22912   0   0   0   0    0   0   0    0   0  0  0 99  0
0  0 5370593 22915   0   0   0   0    0   0   0    0   0  0  0 99  0
0  1 5370582 22926   0   0   0   0    0   0   0    0   0  3  1 95  1
0  0 5370589 22919   0   0   0   0    0   0   0    0   0  1  0 98  0
1  0 5370587 22921   0   0   0   0    0   0   0    0   0  2  0 98  0
1  0 5370586 22922   0   0   0   0    0   0   0    0   0  3  0 97  0
0  1 5370578 22298   0   0   0   0    0   0   0    0   0  1  0 97  2
0  0 5370579 22297   0   0   0   0    0   0   0    0   0  0  0 99  0
2  0 5370576 22299   0   0   0   0    0   0   0    0   0  3  0 97  0
1  0 5370573 22288   0   0   0   0    0   0   0    0   0  0  0 99  0
1  0 5370569 22150   0   0   0   0    0   0   0    0   0  1  0 98  1
1  0 5370570 22149   0   0   0   0    0   0   0    0   0  1  0 99  0
1  0 5370568 22151   0   0   0   0    0   0   0    0   0  2  0 98  0
0  0 5370536 22183   0   0   0   0    0   0   0    0   0  0  0 99  0

all value in faults section is 0 (in sy cs)

and my application starting to generate <defunct> process until reach maximum process for user. and force us to reboot the server to resolve this issue.

Code:
oracle 6426974       1   5                  0:00 <defunct>
  oracle 6431072       1   5                  0:00 <defunct>
  oracle 6435170       1   4                  0:00 <defunct>
  oracle 6439268       1   4                  0:00 <defunct>
  oracle 6443366       1   4                  0:00 <defunct>
  oracle 6447464       1   4                  0:00 <defunct>
  oracle 6451562       1   4                  0:00 <defunct>
  oracle 6455660       1   4                  0:00 <defunct>
  oracle 6459758       1   4                  0:00 <defunct>
  oracle 6463856       1   4                  0:00 <defunct>
  oracle 6467954       1   5                  0:00 <defunct>
  oracle 6472052       1   5                  0:00 <defunct>
  oracle 6476150       1   4                  0:00 <defunct>
  oracle 6480248       1   4                  0:00 <defunct>
  oracle 6484346       1   4                  0:00 <defunct>
  oracle 6488444       1   4                  0:00 <defunct>
  oracle 6492542       1   4                  0:00 <defunct>
  oracle 6496640       1   5                  0:00 <defunct>

my questions are :
1. is it normal for faults section in vmstat to have 0 value for all?
2. what could possibly caused this issue?
3. is there any log i could check?

appreciate if anyone could help me, because i'm newbie in AIX.
Thanks before.

Moderator's Comments:
Mod Comment Use code tags, thanks.

Last edited by zaxxon; 02-15-2013 at 07:59 AM.. Reason: code tags, see PM
 
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