[Beowulf] Cheap SDR IB

Joe Landman landman at scalableinformatics.com
Wed Jan 30 10:04:37 PST 2008

Gilad Shainer wrote:

>> IB for gaming?  I have one ratio: 1e-1/3e-6.  that's human 
>> reaction time versus IB latency.
> Oh yes... I guess you did not play for a long time. Did you? Talk
> with someone who suffer from lagging and you will get the story, even
> When he has a great video card. It's the network and the CPU overhead
> that are the cause of this issue 

Er... ah ... yeah.  Milliseconds is typical in FPS games.  hundreds of 
ms are bad.  Hundreds of microseconds aren't ... ok, depends upon your 
FPS, I am sure the military folks have *really* fun ones which require 
that sort of latency.

Either that, or I have played the wrong games.  I thought 300 baud was 
enough ... ya know ... "adventure" with an acoustic coupler ... (sorry, 
couldn't resist ... been one of those days looking for bugs in the code, 
when it wasn't in the code).

>> also, I think it's a bit disingenous to use 10G Chelsio TOE 
>> to compare, rather than 10G Myri which is cheaper and faster.  also:
>> http://www.chelsio.com/sandia_benchmark_tech.html
> I really don't want to set fire here but funny that you point to such
> data
> as a proof point. If you want a serious discussion on Chelsio "testing"
> we
> can have it, probably in a different mail thread.

Well, as a big proponent of real-world application benchmarks, I would 
like to hear your take on this.

Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web  : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax  : +1 866 888 3112
cell : +1 734 612 4615

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