Yeah my rather old ConnectX-3 Pro 40Gbe is crushing all these numbers for the given sizes of 16 to 1024.
ib_send_lat is 0.77, 0.77, 0.80, 0.86, 1.17, 1.31, 1.58
ib_write_lat is 0.73, 0.75, 0.76, 0.85, 1.12, 1.29, 1.57
ib_read_lat is 1.38, 1.38, 1.39, 1.42, 1.50, 1.65, 1.91
However it's really difficult to judge these things without a detailed description of the test setup. This is over physical loopback on a single machine and even things like cable length can skew things at this level.
ib_send_lat is 0.77, 0.77, 0.80, 0.86, 1.17, 1.31, 1.58
ib_write_lat is 0.73, 0.75, 0.76, 0.85, 1.12, 1.29, 1.57
ib_read_lat is 1.38, 1.38, 1.39, 1.42, 1.50, 1.65, 1.91
However it's really difficult to judge these things without a detailed description of the test setup. This is over physical loopback on a single machine and even things like cable length can skew things at this level.