kernel activity

[soralx at cydem.org]

>  I'm running a pretty busy webserver, and right now I can see it's
>  CPU-bound:
>
> %vmstat 1
>  procs      memory      page                    disks     faults  cpu
>  r b w     avm    fre  flt  re  pi  po  fr  sr da0 ac0   in   sy  cs us sy
> id 78 2 0 1135684 144648   93   0   0   0 248  82  14   0  319  235 136 26
> 35 39 72 2 0 1135668 144060   25   0   0   0 160   0  19   0 1971 141871
> 1098 41 59  0 84 2 0 1135836 142692   82   0   0   0 405   0  35   0 3144
> 246325 1739 42 58  0 77 2 0 1135732 142104  168   0   0   0 343   0  20   0
> 2129 155969 1314 38 62  0
>
>  and I'm trying to figure out why so much time is consumed in 'system
>  mode' (to see if I can further tune the box or not). Any idea what
>  kind of structures/utilities I should consult for that?

do you already use polling for the NIC?

Timestamp: 0x40563F7E
[SorAlx]  http://cydem.org.ua/