Wait time shows high CPU usage Post: 302880283

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Operating Systems AIX Wait time shows high CPU usage Post 302880283 by techy1 on Wednesday 18th of December 2013 02:00:25 PM

12-18-2013

Registered User

Wait time shows high CPU usage

Hi,

I can't seem to make sense of this. My wait time is showing really high but vmstat's and topas are showing normal usage.

Code:

ps aux

USER          PID %CPU %MEM   SZ  RSS    TTY STAT    STIME  TIME COMMAND
root      9961810 5680.7  0.0  448  384      - A      Dec 16 6703072:12 wait

Code:

vmstat -Iwt 2 10

System configuration: lcpu=40 mem=65536MB ent=4.00

   kthr            memory                         page                       faults                 cpu             time
----------- --------------------- ------------------------------------ ------------------ ----------------------- --------
  r   b   p        avm        fre    fi    fo    pi    po    fr     sr    in     sy    cs us sy id wa    pc    ec hr mi se
  3   0   0   13403605    3226546     0    15     0     0     0      0    65  19079  2333  4  4 92  0  0.54  13.5 13:59:17
  1   0   0   13403537    3226613     0    19     0     0     0      0   231   1805   959  0  1 99  0  0.05   1.3 13:59:19
  3   0   0   13403524    3226625     0    25     0     0     0      0   172   6846   878  0  1 98  0  0.11   2.7 13:59:21
  0   0   0   13403524    3226623     0    19     0     0     0      0   106   8707   823  1  1 98  0  0.13   3.2 13:59:23
  0   0   0   13403524    3226623     0    16     0     0     0      0    66    638   728  0  0 99  0  0.03   0.7 13:59:25
  3   0   0   13403524    3226618     0    29     0     0     0      0   769   5424  1512  0  1 99  0  0.10   2.5 13:59:27
  1   0   0   13403524    3226618     0    20     0     0     0      0    41    795   728  0  0 99  0  0.03   0.8 13:59:29
  2   0   0   13403524    3226618     0    17     0     0     0      0    63   5131   765  0  1 98  0  0.09   2.3 13:59:31
  1   0   0   13403524    3226609     0    19     0     0     0      0    57  10788   759  1  2 98  0  0.16   3.9 13:59:33
  0   0   0   13403526    3226606     0    15     0     0     0      0    45   2385   726  0  1 99  0  0.06   1.5 13:59:35

It's not a busy time on the server.

techy1

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LEARN ABOUT SUSE

wmsmpmon

WMSMPMON(1)						      General Commands Manual						       WMSMPMON(1)

NAME

       wmSMPmon - Window Maker System Monitor

SYNOPSIS

       wmSMPmon [options]

DESCRIPTION

       wmSMPmon is a Window Maker dock application that displays the following information about the system:

       - Current CPU utilization of up to two CPUs

       - Up to two minutes history of CPU utilization

       - Current memory usage

       - Current swap usage

       On dual CPU systems, wmSMPmon has three different styles for the utilization graph. To toggle between them just click into the graph.

OPTIONS

       All options start with one dash.

       -h     Show summary of options.

       -r REFRESH_RATE
	      Set the refresh rate of the graph in microseconds. The default is 250000 (a quarter of a second).

       -g GRAPH_STYLE
	      Start  using  graph style #[1-3] (only on dual CPU systems). Style 1 shows the utiliziation in one graph, while 2 and 3 are split in
	      two little graphs. Style 2 shows the two graphs on top of each other. Style 3 uses a mirror like type. The default style is 1, which
	      is also the style used on single CPU systems.

       -c1 IDX, -c2 IDX
	      On  systems  with more than 2 CPUs, select the CPUs to show. Per default CPU number 1 and 2 are shown. On a quad CPU systems you may
	      launch second wmSMPmon showing CPUs number 3 and 4.

       -no-swap
	      Do not monitor swap.

SEE ALSO

       wmaker(1x)

AUTHOR

       This manual  page  was  originally  written  by	Alain  Schroeder  <alain@debian.org>  and  adapted  for  wmSMPmon  3  by  Thomas  Ribbrock
       <emgaron@gmx.net>

																       WMSMPMON(1)