Re: Virtex TEMAC ping -s 10000 host, is it working?

[Lorenz Kolb <linuxppcemb@lkmail.de>]

alex_snippet wrote:
> 
> Hi All!
> 
> On Virtex 4FX board with TEMAC core, Linux ping working fine, but if s -
> parameter set to big values it freezes for ever...
> 
> Colleagues please share your experience with ping -s 10000 host.
> 
> Do you know what parameters in core or in Linux kernel must be changed to
> improve it.
> 
> My customer is too hypercritical, he likes to ping :(
> 
> I tried to  increase LX/TX buffers in core, it increased dead line but
> there is no desirable result.
> 
> 
> 


Hey, I can understand that customer, I like pinging as well.
And it works for me. Our design is based on ML403.
We use PLB_TEMAC (with minimum Fifos (4kB each)) and HardTEMAC


> .
> .
> .
> 10008 bytes from 192.168.0.206: icmp_seq=733 ttl=64 time=2.42 ms
> 10008 bytes from 192.168.0.206: icmp_seq=734 ttl=64 time=2.50 ms
> 10008 bytes from 192.168.0.206: icmp_seq=735 ttl=64 time=2.43 ms
> 10008 bytes from 192.168.0.206: icmp_seq=736 ttl=64 time=2.43 ms
> 10008 bytes from 192.168.0.206: icmp_seq=737 ttl=64 time=2.44 ms
> 10008 bytes from 192.168.0.206: icmp_seq=738 ttl=64 time=2.42 ms
> 10008 bytes from 192.168.0.206: icmp_seq=739 ttl=64 time=2.51 ms
> 10008 bytes from 192.168.0.206: icmp_seq=740 ttl=64 time=2.42 ms
> 10008 bytes from 192.168.0.206: icmp_seq=741 ttl=64 time=2.50 ms
> 10008 bytes from 192.168.0.206: icmp_seq=742 ttl=64 time=2.43 ms
> .
> .
> .
> 

And so on...


> --- 192.168.0.206 ping statistics ---
> 850 packets transmitted, 850 received, 0% packet loss, time 849010ms
> rtt min/avg/max/mdev = 2.399/11.623/1001.859/92.782 ms, pipe 3
> 
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