Gael Mauleon wrote:
Ok I tested the shaping on the SDSL line with netperf and
an host outside.
Same script than before, I classify the packets into qdisc based on the
source address in netfilter and here are the result, that's with sfq.
I'm positive on the right traffic going to the right class.
>
>
> TCP STREAM TEST to 81.57.243.113 (NORMAL)
> Recv Send Send
> Socket Socket Message Elapsed
> Size Size Size Time Throughput
> bytes bytes bytes secs. 10^3bits/sec
>
> 87380 8192 8192 60.00 282.90
>
>
>
> TCP STREAM TEST to 81.57.243.113 (LOWPRIO)
> Recv Send Send
> Socket Socket Message Elapsed
> Size Size Size Time Throughput
> bytes bytes bytes secs. 10^3bits/sec
>
> 87380 8192 8192 61.00 390.00
Hmm I can't really think why this is happening, is it the same box that
you did the lan test from?
I think what I would do as the next test is turn off window scaling -
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
add 70k bfifos to the classes - you shouldn't drop any packets then.
Repeat the test and tcpdump it. If you see packet loss then this could
be the explanation.
Andy.
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