send (B/MB)			receive (B/MB)			t(s)	2p		3p		6p
-----------------------------------------------------------------------
33554432/32			8388608/8				13		29		35		45
67108864/64			18874368/18				34		53		67		103
134217728/128		40894464/39				66		118		142		167
268435456/256		57671680/55				121		223		277		378