[zeromq-dev] epgm protocol question

Emmanuel TAUREL taurel at esrf.fr
Tue Apr 13 15:04:14 CEST 2010


I am sorry but I don't understand.
The unit of this ZMQ_RATE is kilobits/seconds.
Therefore 20000 means around 20 Mbits/seconds.
My link is 100 Mbits/second. This means that I am using one fifth of the 
available bandwidth.

Where is my mistake?



On 13/04/2010 14:46, Martin Sustrik wrote:
> Emmanuel,
>> Thank's very much for your answer.
>> I don't think the sender uses the whole bandwidth available. My 2 hosts
>> are linked with a 100 Mbit link.
>> On both publisher and subscribers, I have limited the rate (using the
>> ZMQ_RATE socket option) to
>> 20000.
>> This is confirmed by the wireshark IO Graph
> If wireshark shows 20Mb/s bandwidth usage, the capacity assigned to the
> socket is already used up. Thus the RDATA will be supressed in favour of
> new data.
> Martin
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