New Set of High Performance Networking Patches Available

Chris Rapier rapier at psc.edu
Fri Aug 5 04:47:02 EST 2005



Darren Tucker wrote:
> Chris Rapier wrote:
> [throughput]
> 
>>Yeah, thats definitely low. Can you try a loopback to your localhost and 
>>dump the data into /dev/null to see what sort of limit the CPU is 
>>imposing? Also, what cipher? 3des is justa nightmare. Most of our tests 
>>are using arcfour and blowfish.
> 
> 
> Tried all that.  All tests done with arcfour, same (low) throughput 
> copying to /dev/null.  And as I mentioned, systems did 6MB/s throughput 
> w/out the high-latency network (which was disk-to-disk).
> 
> I will probably try measuring with ttcp or netperf next.

You might want to try iPerf too. Its a good tool. Better in some 
environments not as good in others.




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