Packet loss with traffic shaper and routing

[Mihai Tanasescu]

Then try commenting these out:

#ifdef SMP
#ifndef COMPILING_LINT
#error DEVICE_POLLING is not compatible with SMP
#endif
#endif


It should compile with both SMP and POLLING.


On Wed, 2006-04-26 at 13:09 -0300, tpeixoto at widesoft.com.br wrote:
> Hi Lee,
> 
> I got excited, but... surprise!
> 
> ../../../kern/kern_poll.c:46:2: #error DEVICE_POLLING is not compatible
> with SMP
> mkdep: compile failed
> *** Error code 1
> 
> :(
> 
> Thanks anyway!
> 
> 
> > Hi,
> >
> > Try using device polling to reduce the number of interrupts.
> >
> > Add this to your kernel:
> > options         DEVICE_POLLING
> > options         HZ=1000
> >
> > And set sysctl kern.polling.enable=1
> >
> > Hope this helps,
> >
> > Regards,
> > Lee.
> >
> >
> >
> >
> >
> > tpeixoto at widesoft.com.br wrote:
> >> Hello all!
> >>
> >> We have a machine working as a router and bandwidth limiter for our
> >> network. It routes the traffic through two 'bge' interfaces utilizing
> >> only
> >> public IPs. No NAT is used. We only have IPFW rules for traffic shaping
> >> by
> >> MAC addresses.
> >> It works fine, but we have been experiencing high latency and packet
> >> loss.
> >> There is no other major services in this machine, cpu utilization is
> >> low,
> >> memory is fine, no disk activity, but load average is always around 1.5
> >> or
> >> 2, even if I disable IPFW layer 2 filtering.
> >> Network traffic is not greater than 12 Mbit/s.
> >>
> >> The system is a FreeBSD 5.4-RELEASE, running on a dual CPU: Intel(R)
> >> Xeon(TM) CPU 3.06GHz (3051.47-MHz 686-class CPU) compiled with SMP
> >> kernel:
> >>  cpu0 (BSP): APIC ID:  0
> >>  cpu1 (AP): APIC ID:  1
> >>  cpu2 (AP): APIC ID:  6
> >>  cpu3 (AP): APIC ID:  7
> >>
> >>
> >> top output:
> >>
> >> last pid: 14039;  load averages:  1.61,  1.62,  1.56
> >> 37 processes:  1 running, 35 sleeping, 1 zombie
> >> CPU states:  0.0% user,  0.0% nice,  1.4% system, 30.8% interrupt, 67.8%
> >> idle
> >> Mem: 16M Active, 421M Inact, 149M Wired, 688K Cache, 112M Buf, 1417M
> >> Free
> >> Swap: 1024M Total, 1024M Free
> >>
> >>   PID USERNAME PRI NICE   SIZE    RES STATE  C   TIME   WCPU    CPU
> >> COMMAND
> >>  6245 root      96    0  2672K  2236K select 2   3:48  0.00%  0.00%
> >> dhcpd
> >>   329 root      96    0  1328K   892K select 0   2:48  0.00%  0.00%
> >> syslogd
> >>   453 root      96    0  3384K  2508K select 2   0:33  0.00%  0.00% sshd
> >>
> >>
> >>
> >>
> >> systat -iostat output:
> >>
> >>                     /0   /1   /2   /3   /4   /5   /6   /7   /8   /9
> >> /10
> >>      Load Average   ||||||||||
> >>
> >>           /0   /10  /20  /30  /40  /50  /60  /70  /80  /90  /100
> >> cpu  user|
> >>      nice|
> >>    system|
> >> interrupt|XXXXXXXXXXXXXXXXX
> >>      idle|XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> >>
> >>           /0   /10  /20  /30  /40  /50  /60  /70  /80  /90  /100
> >> da0   MB/s
> >>       tps|X
> >> pass0 MB/s
> >>       tps|
> >>
> >>
> >> Can anyone give me some advice?
> >> Thank you in advance!
> >>
> >>
> >> _______________________________________________
> >> freebsd-net at freebsd.org mailing list
> >> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> >> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"
> >>
> >>
> >>
> >
> >
> > --
> > ------------------------------------------------------------------------
> > Wildcard Internet - end-to-end internet solutions
> > Lee Johnston - Wildcard Internet
> > Tel: 0845 165 1510
> > Fax: 0845 165 1511
> > Email: lee at wildcard.net.uk <mailto:lee at wildcard.net.uk>
> > Web: www.wildcard.net.uk <http://www.wildcard.net.uk>
> >
> >
> 
> 
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