> Does rdma_lat have the same issue?
> What does rdma_lat report?


Latency typical: 0.717812 usec
Latency best   : 0.705625 usec

Latency typical: 1149 cycles
Latency best   : 1129.5 cycles

after modifying the per usec cycles
the results are:

Latency typical: 5.76884 usec
Latency best   : 5.66834 usec

gettimeofday() results are:

Latency typical: 6.000000 usec
Latency best   : 5.500000 usec

Thanks
Shirley Ma
IBM Linux Technology Center
15300 SW Koll Parkway
Beaverton, OR 97006-6063
Phone(Fax): (503) 578-7638

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