FIBRE CHANNEL EQUIPMENT UNDER TEST

2. Using a light-weight protocol

Between IBM workstations (Direct Channel, with the Fabric inbetween)

Overhead

• RS/6000-250 - RS/6000-590: 640 usec.
  
• RS/6000-590 - RS/6000-250: 376 usec.
  

Throughput

• RS/6000-250 - RS/6000-590: 11.9 Mbytes/s.
  
• RS/6000-590 - RS/6000-250: 16.3 Mbytes/s.
  

Between HP workstations (LLA, with the Fabric inbetween)

Overhead

• HP/9000-735 - HP/9000-735: usec.
  

Communication latency

• HP/9000-735 - HP/9000-735: 216 usec.
  

Throughput

• HP/9000-735 - HP/9000-735: 12.5 Mbytes/s.
  

Between VME crates (customized protocol, with the Fabric inbetween)

Note that the data are moved in 32 bit wide.

Overhead

• VME crate - VME crate: 850 usec.
  

Throughput

• VME crate - VME crate: 6.9 Mbytes/s.
  

Between VME crate and HP workstation (customized protocol on VME side, LLA on HP side, with the Fabric inbetween)

Note that the data are moved in 32 bit wide.

Overhead

• VME crate - HP/9000-735: 800 usec.
  

Throughput

• VME crate - HP/9000-735: 5.95 Mbytes/s. (for 32750 byte message)
  

Generated with CERN WebMaker