Communication benchmarks with the Ancor Fibre Channel Fabric

Conclusion

On figures 11, results have been achieved when using the Read and Write functions in a non blocking mode. When the most powerful workstation acts as a receiver (respectively sender), the measured performances on the receiver side (respectively sender side) are as follows:

• - overhead of 680 microseconds (respectively 630 microseconds),

• - speed of 21.8 MBytes/s (respectively 21 MBytes/s) for receiving 65500 byte messages.

On figures 12, results have been achieved when using the Read and Write functions in a blocking mode. When the most powerful workstation acts as a receiver (respectively sender), the measured performances on the receiver side (respectively sender side) are as follows:

• - overhead of 1200 microseconds (respectively 1250 microseconds),

• - speed of 10.5 MBytes/s (respectively 10.1 MBytes/s) for receiving 65500 byte messages.

It looks like if the most powerful workstation is not enough powerful for maintaining the data flow enforced by the two other machines. Otherwise, if it would be capable of sustaining the sum of each machine's data flow, the practical performances would fit the theoretical ones (see figures 11 and 12).

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