device polling and high load averages
Glenn Dawson
glenn at antimatter.net
Tue Sep 27 03:15:42 PDT 2005
At 02:41 AM 9/27/2005, Vlad GALU wrote:
>On 9/27/05, peceka <peceka at gmail.com> wrote:
> > Hi,
> >
> > I've got:
> > fw3# uname -r
> > 5.4-RELEASE-p7
> >
> > in my kernel config i've set:
> > options HZ=1000
> > options DEVICE_POLLING
> >
> > fw3# cat /etc/rc.conf | grep ifconfig
> > ifconfig_em0="inet 192.168.1.251 netmask 255.255.255.0 polling"
> >
> > fw3# cat /etc/sysctl.conf | grep poll
> > kern.polling.enable=1
> > kern.polling.idle_poll=1
> >
> > And all the time i've got:
> > fw3# uptime
> > 11:22AM up 1:59, 1 user, load averages: 1.00, 1.00, 0.96
> >
> > from top:
> > last pid: 88131; load averages: 1.00, 1.00, 0.96
> > 24 processes: 1 running, 23 sleeping
> > CPU states: 0.0% user, 0.0% nice, 99.2% system, 0.8%
> interrupt, 0.0% idle
> >
> > But this machine do nothing, just pure FBSD system. So why there is
> > such high load aver.?
> >
>
> Because of kern.polling.idle_poll.
and a load average of 1 isn't exactly "high" either...
> > Best regards,
> > p.
> >
> > _______________________________________________
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> >
>
>
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