Very Computer

> Hi all,

> It looks like Vmstat /sar/top  are reporting inconsistent results with regds
> to CPU activity(Busy/Idle time).

> For eg , I tried the following (one immediately after the Other)  to
> determine how Busy are the CPUs ..

> heron# vmstat -S 5 5
>  procs     memory            page            disk          faults      cpu
>  r b w   swap  free  si  so pi po fr de sr s1 s1 s3 s3   in   sy   cs us sy
> id
>  0 1 0  16752 17872   0   0 65  6 13  0  1  1  1  0  0  698 1078 1518 20  3
> 77
>  0 0 0 5885296 203480 0   0  0  0  0  0  0  1  1  0  0  795 1931 1739 33  3
> 64
>  0 1 0 5885248 203424 0   0  0  0  0  0  0  0  0  0  0  787 2195 1756 35  3
> 62
>  0 1 0 5885240 203416 0   0  0  0  0  0  0  0  0  0  0 1223 2761 2461 54  5
> 41
>  1 0 0 5885224 203400 0   0  0  0  0  0  0  0  0  0  0 1088 2422 2316 44  4
> 52
> heron# sar 5 5

> SunOS heron 5.5.1 Generic_103640-24 sun4u    10/27/99

> 12:38:36    %usr    %sys    %wio   %idle
> 12:38:41      27       3      35      35
> 12:38:46      36       3      43      18
> 12:38:51      53       4      29      13
> 12:38:56      39       3      43      15
> 12:39:01      36       5      45      14

> Average       38       4      39      19

> heron# top
> last pid: 19671;  load averages:  3.66,  4.12,  4.44
> 12:39:41
> 408 processes: 404 sleeping, 4 on cpu
> Cpu states:  0.0% idle, 13.0% user, 26.1% kernel, 31.8% iowait, 29.1% swap
> Memory: 2450M real, 101M free, 814M swap, 2941M free swap

> The 'man' pages for the above commands claims the Same defn for the CPU
> acitivity Reporting Columns(%idle) ..

> Even 'mpstat' 's results doesnt seem to correlate with Vmstat or sar..

> Which one do I believe on ?
> Any inputs, appreciated.

> Thanks

> Sam