Date: Wed, 26 Apr 2006 13:09:35 -0300 (BRT) From: tpeixoto@widesoft.com.br To: "Lee Johnston" <lee@wildcard.net.uk> Cc: freebsd-net@freebsd.org Subject: Re: Packet loss with traffic shaper and routing Message-ID: <56286.200.230.201.250.1146067775.squirrel@www.widemail.com.br> In-Reply-To: <444F8E89.2050905@wildcard.net.uk> References: <49594.200.230.201.250.1146063341.squirrel@www.widemail.com.br> <444F8E89.2050905@wildcard.net.uk>
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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@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@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> >> >> > > > -- > ------------------------------------------------------------------------ > Wildcard Internet - end-to-end internet solutions > Lee Johnston - Wildcard Internet > Tel: 0845 165 1510 > Fax: 0845 165 1511 > Email: lee@wildcard.net.uk <mailto:lee@wildcard.net.uk> > Web: www.wildcard.net.uk <http://www.wildcard.net.uk>; > >
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