CERN/EAST note 94-22

July 28th 1994

draft

Communication benchmarks with the Ancor Fibre Channel Fabric

Fabrice Chantemargue

I. - Introduction

II. - Results using TCP/IP

III. - Results using Direct Channel

A. - Communication between two machines

1. - Communications between RS/6000 250 and RS/6000 590 machines

a) - Read/Write in a non blocking mode

b) - Write in a non blocking mode, Read in a blocking mode

c) - Write in a blocking mode, Read in a non blocking mode

d) - Read/Write in a blocking mode

e) - Conclusion

2. - Communications between RS/6000 590 and RS/6000 C10 machines

a) - Read/Write in a non blocking mode

b) - Write in a non blocking mode, Read in a blocking mode

c) - Write in a blocking mode, Read in a non blocking mode

d) - Read/Write in a blocking mode

e) - Conclusion

B. - Communications between three machines

1. - Read/Write in a non blocking mode

2. - Read/Write in a blocking mode

3. - Conclusion

IV. - Conclusion

V. - References

VI. - Appendix: Problem reported when using TCP/IP to transfer data

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