Re: overruns ?

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Hi


> > 2.4.16
> > 100Mbps Switched
> >
> > PCI: Found IRQ 10 for device 00:09.0
> > eth0: ADMtek Comet rev 17 at 0xe400, 00:04:E2:1E:FE:B3, IRQ 10.
> > using the tulip drivers.
>
>    That is roughly 1 error for every 3000 received frames.
>    With 'netstat -s' you will possibly see incoming packets
>    being dropped:

yeah i know thats why i asked.

> Ip:
>     317338 total packets received
>     0 forwarded
>     19 incoming packets discarded
>     220834 incoming packets delivered

i only get
2 incoming packets discarded

>    Another metric to look at is  softnet_stat,  these are per CPU (my
>    sample box for this is a dual-CPU machine), and the fields counting
>    frames are in order:  total, dropped, time_squeeze, throttled,
>    fastroute_hit, fastroute_success, fastroute_defer,
fastroute_deferred_out,
>    cpu_collisions.
>
> # cat /proc/net/softnet_stat
> 0000b7c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
> 0000bea7 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
>

my current eth0 stats look like

RX packets:554773 errors:157 dropped:0 overruns:157 frame:157
TX packets:696401 errors:0 dropped:0 overruns:0 carrier:0

i seem to get
# cat /proc/net/softnet_stat
00091fd8 00000000 00000001 00000000 00000000 00000000 00000000 00000000
00000000

what would the time_squeeze be ?
so 0 are dropped by the kernel.
the only thing that would be active is a serial port with a 56k modem
attached to it and hard disks without much io eg only the amount the
network card is putting though which is no more than 2MBytes/sec :(
and the system is about 40% idle on a P233 with 192MB ram


>    All in all, if your system has many busmasters (TV frame-grabbber,
>    busy IDE/SCSI controllers, many network cards), it might do well
>    to force lower latency values for them all (at BIOS setup.)

i dont see any options for this in my bios.
unless i am blind but i will have another look when i reboot next time.

thanks
    James


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