> So, latency could be tested. According to the man page the tests > available are as follows: > > TCP_RR > TCP_CRR > UDP_RR > TCPIPV6_RR > TCPIPV6_CRR > UDPIPV6_RR These are the tests I ran - I had to recompile the whole package to include the"histogram" option (which gives pretty good idea of the latencies involved), though I am not sure whether I could believe these - I am getting some really low latencies - about 6-10ms even when I constrained the bandwidth and put the entire subnet under load. I also used uperf (where I could customise every aspect of the tests involved), but got very similar results.
One very annoying feature of netperf is that I cannot specify the source port for the data tests - only for the control connection, which is of no use to me. Without this, it is very difficult to "shove" the traffic generated from these tests into the classes I defined. uperf in this respect is much more flexible. ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay _______________________________________________ Shorewall-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/shorewall-users
