Hi
Maybe my problem is litle offtopic to this list , but maybe someone had
something similar like this , and have some good solution .
Ok, I''ve have router with four intel e1000 pci-x(2x100Mhz/2x133Mhz)
nics that push
about 200Mbit/s ,
and I''m using nload for realtime traffic monitoring. Everything was
great
until I''ve updated kernel to 2.6.17.13 . After update nload is showing
some crazy values .
I''ve tried to get counters from /proc/net/dev (like nload).
root@kaermorhen:~# while true; do cat /proc/net/dev|grep eth0; sleep 1; done
eth0:1013729758 572932250 0 1882102 0 0 0 0
1572910106 3860638290 0 0 0 0 0 0
eth0:1055515817 573004372 0 1882102 0 0 0 0
1601291109 3860694606 0 0 0 0 0 0
eth0:1055515817 573004372 0 1882102 0 0 0 0
1601291109 3860694606 0 0 0 0 0 0
eth0:1097729573 573076432 0 1882102 0 0 0 0
1629536436 3860751311 0 0 0 0 0 0
eth0:1097729573 573076432 0 1882102 0 0 0 0
1629536436 3860751311 0 0 0 0 0 0
eth0:1139487258 573148469 0 1882102 0 0 0 0
1658034498 3860807633 0 0 0 0 0 0
eth0:1139487258 573148469 0 1882102 0 0 0 0
1658034498 3860807633 0 0 0 0 0 0
eth0:1181148113 573220076 0 1882102 0 0 0 0
1685931047 3860863738 0 0 0 0 0 0
Between second and third second counter increase of 0 bytes,
1055515817-1055515817=0
the same for fourth and fifth ( on mrtg graphs I''ve about 140Mbit/s
incoming
traffic - 17.5 MB/s ).
On other router I''ve kernel 2.6.14.7 , e1000/2xe100 32bit nics , and
interfece counters in /proc/net/dev are looking good:
eth0:2101453114 3324697664 3604 3441 3441 92 0 1347064 867323793
3458783738 0 0 0 0 0 0
eth0:2107451373 3324705778 3604 3441 3441 92 0 1347066 874688831
3458792480 0 0 0 0 0 0
eth0:2113352907 3324713495 3604 3441 3441 92 0 1347066 881546913
3458800862 0 0 0 0 0 0
eth0:2119707847 3324721929 3604 3441 3441 92 0 1347069 889060588
3458809975 0 0 0 0 0 0
eth0:2125601276 3324729816 3604 3441 3441 92 0 1347070 896165072
3458818569 0 0 0 0 0 0
2113352907-2107451373=5901534 (traffic on intefece about 40Mbit/s = 5MB/s) -
seems good.
Both routers have CONFIG_HZ=1000, two cpus, and bofh are using
e1000/e100 driver with enabled NAPI.
Besides I''ve similar thing on laptop, 2.6.14 , Broadcom BCM4401-B0 nic
(b44) :)
Why interface counters are increasing so slowy? this behavior can be
changed? or in other way this is normal behavior or some bug , feature?
/pch
--
Dyslexia bug unpatched since 1977 ...
exploit has been leaked to the underground.
