[zeromq-dev] Non-contiguous message thoughts

[Santy, Michael]

Martin,
 
I ran the benchmarks with the 0MQ 2.0b2 release.  Below is the relevant hardware / software details.  I'm not sure on the exact model numbers of the IB HCA and switch -- the models listed below are what lspci detected.
 
CPU: Intel Core i7 940 @ 2.93 GHz
Memory: 12GB DDR3 @ 1333 MHz
IB HCA: Mellanox MT25204 -- InfiniHost III Lx HCA
IB Switch: Mellanox MT47396 Infiniscale III
OS: Centos 5.4 x86_75
OFED: 1.4.1
libSDP: 1.1.99
 
Regards,
Mike
 

________________________________

From: Martin Sustrik [mailto:sustrik at 250bpm.com]
Sent: Thu 3/11/2010 3:42 AM
To: Santy, Michael
Cc: zeromq-dev at lists.zeromq.org
Subject: Re: [zeromq-dev] Non-contiguous message thoughts



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


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