[zeromq-dev] Non-contiguous message thoughts

[Martin Sustrik]

Michael,

Check the page now. If OK, I'll link it from 0MQ website.

Martin

Santy, Michael wrote:
> 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
>