dummynet and smp

[Andrey Kropachev]

> Very strange.
> I have freebsd 7.0-RELEASE-p10 with dummynet in use and about 700 Mbit/s
> traffic passing through. dummynet process CPU usage is 0% to 10%.
> Let me see your ipfw rules.
> What FreeBSD version do you have?
> What about swi: net and taskq (irq) processes?
> Hardware configuration?
>   
ipfw rules:
00010     68893        4016154 allow tcp from any to me dst-port 22
00020       74773       24184400 allow tcp from me 22 to any
00030           0              0 allow ip from 10.0.1.0/28 to me
00040    59053707    88088134092 allow ip from me to 10.0.1.0/28
00500   172527273     8241845066 allow ip from table(111) to any
00510  6826373984  4635126371384 skipto 10000 ip from any to table(111)
01000  6155688044  1067046574713 pipe tablearg ip from table(17) to any 
in via bge1
01010           0              0 ngtee 21 ip from table(23) to any in 
via bge1
01020  6095478668  1046703088138 ngtee 31 ip from table(24) to any in 
via bge1
01030    20156002     8768866847 ngtee 41 ip from table(30) to any in 
via bge1
15000 12300189888  2098823866830 nat tablearg ip from table(24) to any
15010           0              0 nat tablearg ip from table(23) to any
15020    40322035    17538211139 nat tablearg ip from table(30) to any
15030  6826373494  4635126305893 nat tablearg ip from any to table(111)
15040  6498744726  4605209022143 pipe tablearg ip from any to table(18) 
out via bge0
15050           0              0 ngtee 21 ip from any to table(23) out 
via bge0
15060  6391831428  4515717639848 ngtee 31 ip from any to table(24) out 
via bge0
15070    12348264     7632683598 ngtee 41 ip from any to table(30) out 
via bge0
65000 25551327312 11269101015139 allow ip from any to any
65535          79          17383 deny ip from any to any

My router configuration:
FreeBSD nat3 7.1-STABLE FreeBSD 7.1-STABLE #3: Tue Mar 17 16:09:20 MSK 
2009     root at nat3:/usr/src/sys/amd64/compile/nat3  amd64
2 x CPU: Intel(R) Xeon(R) CPU           X5472  @ 3.00GHz (2992.51-MHz 
K8-class CPU)
2 gigabit bge pci-e cards.
polling is disabled.
kern.hz=1000

top -SH
81 processes:  7 running, 58 sleeping, 16 waiting
CPU:  0.8% user,  0.0% nice, 13.0% system, 11.4% interrupt, 74.8% idle
Mem: 31M Active, 1320M Inact, 529M Wired, 43M Cache, 63M Buf, 55M Free
Swap: 4062M Total, 4062M Free

  PID USERNAME PRI NICE   SIZE    RES STATE  C   TIME    CPU COMMAND
   13 root     171 ki31     0K    16K RUN    1 134.9H 100.00% idle: cpu1
   11 root     171 ki31     0K    16K CPU3   3 120.6H 96.39% idle: cpu3
   14 root     171 ki31     0K    16K RUN    0 107.1H 71.09% idle: cpu0
   12 root     171 ki31     0K    16K CPU2   2 119.7H 65.28% idle: cpu2
   42 root     -68    -     0K    16K -      2  45.8H 46.09% dummynet
   25 root     -68    -     0K    16K CPU0   0  35.8H 35.69% irq256: bge0
   26 root     -68    -     0K    16K WAIT   1 383:21  4.88% irq257: bge1
   16 root     -32    -     0K    16K WAIT   1 153:17  1.17% swi4: clock sio


Regards,
Andrey Kropachev