[zeromq-dev] Tests of 0MQ/0.3.1 on InfiniBand

Martin Sustrik sustrik at fastmq.com
Mon Oct 13 17:31:51 CEST 2008


Pieter,

> Nice stuff, Martin.  How does this compare to 10GoE?  (Just wondering,
> because there seems to be somewhat of a fight between Infiniband and
> 10GoE).

We haven't run 10GbE on the same hardware yet so it's hard to compare. 
However, it seems that the latency is comparable with IB (few 
microseconds of difference).

Above applies to standard TCP/IP stack. With MX-Open/SDP stack on top of 
10GbE we've seen latency as low as 13.4 us. InfiniBand may catch up via 
RDMA, however, RDMA has different API so testing it requires changes to 
0MQ codebase.

Martin



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