Re: top output: 8 cpus busy in user-mode activities, 6 processes running

My understanding is that "top" refreshes every 5 seconds by default.  So at the instant of the refresh, it is reporting what processes are actually on the cpu(s) at that time.  Not what processes are or were on the process during the 5 seconds between refreshes.

-Troy


----- Original Message -----
From: Susie White <swhite@xxxxxxxxxxxx>
Date: Tuesday, October 31, 2006 9:31 am
Subject: top output:  8 cpus busy in user-mode activities, 6 processes running
To: redhat-list@xxxxxxxxxx

Can you give me some insights about how we can have a case of
more busy cpus than users on the run queue or waiting for the
run queue.  Below is a point in time snap shot using
'top'.  We have 8 cpus, all with user-mode activity. 
And yet we have 6 processes in an R or S state.  All the
rest are in SW state.  Any speculation is welcome. 

We are running this version of linux:  2.4.21-32.0.1.ELsmp
#1 SMP Tue May 17 17:52:23 EDT 2005 i686 i686 i386 GNU/Linux

Thanks!


 05:10:01  up 24 days,  5:58,  3
users,  load average: 3.50, 2.24, 1.33
1061 processes: 1060 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:  cpu    user   
nice  system    irq  softirq 
iowait    idle
          
total   21.6%    0.0%  
43.2%   0.0%    
0.8%    9.6%  724.0%
          
cpu00    0.9%   
0.0%    3.6%  
0.0%     0.0%   
0.0%   95.4%
          
cpu01    2.7%   
0.0%    7.2%  
0.0%     0.0%   
0.0%   90.0%
          
cpu02    7.2%   
0.0%    0.9%  
0.0%     0.0%   
5.4%   86.4%
          
cpu03    3.6%   
0.0%    4.5%  
0.0%     0.0%   
4.5%   87.3%
          
cpu04    1.8%   
0.0%    3.6%  
0.0%     0.9%   
0.0%   93.6%
          
cpu05    1.8%   
0.0%    8.1%  
0.0%     0.0%   
0.0%   90.0%
          
cpu06    1.8%   
0.0%    6.3%  
0.0%     0.0%   
0.0%   91.8%
          
cpu07    1.8%   
0.0%    9.0%  
0.0%     0.0%   
0.0%   89.0%
Mem:  15887700k av, 14688888k used, 1198812k
free,       0k shrd,  
75228k buff
                   10974816k actv, 2098712k in_d,  244572k in_c
Swap: 12582712k av,  128796k used, 12453916k
free                 12403560k cached

  PID USER     PRI  NI 
SIZE  RSS SHARE STAT %CPU %MEM   TIME CPU COMMAND
 9477 oracle    25   0  1944
1944   788 R     9.9 
0.0   0:00   7 top
 1937 root      16  
0  1204 1076   692 S    
7.2  0.0 328:13   2 hpasmd
 9531 oracle    25   0 14208 
13M 12596 S     4.5  0.0  
0:00   3 oracle
25749 oracle    15   0 14200 
13M  8584 S     2.7 
0.0   0:06   6 oracle
    1 root     
25   0   520  520   460
S     0.9  0.0 190:19   0 init
25741 oracle    15   0 25132  24M
21952 S     0.9  0.1  
4:38   3 oracle
    2 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   0 migration/0
    3 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   1 migration/1
    4 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   2 migration/2
    5 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   3 migration/3
    6 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   4 migration/4
    7 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   5 migration/5
    8 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   6 migration/6
    9 root     
RT   0     0   
0     0 SW    0.0 
0.0   0:00   7 migration/7




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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Troy Knabe
Senior Systems Administrator
Computing and Information Services
4J School District
knabe@xxxxxxxxxxx
Ph: 541.687.3587
Cell: 541.968.0780

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