Throughput
9
FC Traffic Alone Compared to FC Traffic in Conjunction with GigE
Bidirectional
Figure 5 PCI-X Fibre Channel Read Performance
Figure 5 shows PCI-X Fibre Channel Read (Rd) performance. With 1, 2, or 4 cells
configured, the following throughput rates were achieved:
• Read throughput on the FC port with no GigE traffic on a 1 cell partition is an excellent
191 MBytes/sec. As the partition size is increased by adding up to 3 more cells, read
throughput shows no drop in performance. A similar pattern emerges when FC read
and GigE bidirectional are combined. FC read throughput is 191 MBytes/sec with no
change as partition size is increased.
• When tested in a PCI-66 slot, the performance results for read only throughput are
identical to PCI-X performance. When FC read and GigE bidirectional traffic are
combined, PCI-66 performance is 157 MBytes/sec with no change as partition size
increases.
191 191191 191 191 191
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Rd Rd + GigE BD
MBytes/sec
1 Cell
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4 Cells
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