[zeromq-dev] Non-contiguous message thoughts

[Martin Sustrik]

Hi Michael,

> Attached is a spreadsheet of performance for the copy/non-copy latency 
> test from 4K up to 256MB.  Its no surprise that memory copying makes a 
> difference on large messages when using infiniband.  I'll let you slice 
> and dice the data the way you see fit.  Let me know if you need any 
> clarification.

I've pasted the results here + I've creared graphs based on the figures:

http://www.zeromq.org/results:copying

What's missing is the environment description:

1. What version of 0MQ have you used (beta2?, trunk - if so, which 
version? there have been some zero-copy related fixes since beta2).
2. What OS, what networking stack (SDP?, OFED version etc.), what 
hardware (CPUs, IB NICs, switches etc.)

Thanks!
Martin