[netperf-talk] Which is the best hardware configuration for Netperf-Server?

Rick Jones rick.jones2 at hp.com
Wed Oct 28 09:39:44 PDT 2009


>>Expanding a bit, because I've been remis in updating doc/netperf.texi to 
>>properly document the global -T option:
>>
>>-T N   # bind netperf and netserver to CPU id N on their respective systems
>>-T N,  # bind netperf only, let netserver run where it may
>>-T  ,M # bind netserver only, let netperf run where it may
>>-T N,M # bind netperf to CPU N and netserver to CPU M
>>
>>BTW, this is a netperf option, not a netserver option.
> 
> 
> You wrote that with the character M I can "bind" the process to another CPU
> on the server side, is that right? So it will be possible that I start from
> one Client two netperf processes the first with "-T,1" and the second with
> "-T,2" ? 

Yes, it is possible, and it will case the netservers to be bound to CPU 1 and 
CPU 2 respectively

> And where the numbering begins with 0 or 1?

Netperf will simply use the value with the platform-specific CPU binding 
call(s), where that begins is platform specific.  Netperf knows nothing more 
than that - for example, it knows nothing about topology - which CPU is which 
core in which processor chip, nor whether a "CPU" is really just a HW thread.

happy benchmarking,

rick jones


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