Try the following onconfig changes...

VPCLASS cpu,num=4,noage,aff=0-3
This will turn on noage and affinity for your 4 cpu vps

NETTYPE onsoctcp,1,600,NET
FASTPOLL 1
Try using a NET VP instead of inline polling. This assume you do have
some cpu bandwidth to allow the NET VP some cpu time. A single NET VP
can handle up to 600 connections. If you have more than this, you
might need a 2nd vp.

On May 17, 9:45*am, "Paul Watson (Oninit)" <p...@oninit.com> wrote:
> [cutting]
>
>
>
> >>>> This sparks the age-old debate: add more CPU VPs than physical
> >>>> processor cores? *Or is there something incorrectly configured about
> >>>> the _current_ setup that's causing my CPU VPs to do less than they
> >>>> should / yield too easily, etc.?
>
> >> Seen the same thing on HP when you get to larger number of procesors,
> >> larger IDS ready queues but low OS CPU usage. Put it down to a OS bug
>
> >> Cheers
> >> Paul
>
> > RAM vs SWAP vs IDS memory?
>
> 48GB vs 48GB vs 12GB
>
> Cheers
> Paul