Performance and Recommended Use of AD385A 10 Gigabit Ethernet SR Cards

AD385A Throughput Performance
4
AD385A Throughput Performance
Following are the highlights of the excellent performance achieved when operating at 9000
MTU:
• Receive traffic achieved a sustained throughput of 9.15 Gigabits/second, which is close
to the link rate of a 10 Gigabit Ethernet link. The service demand (which is the amount of
time it takes the CPU to handle one kilobyte of data) was 1.21µs/KByte.
• The transmit throughput was 9.90 Gigabits/second, which is the link rate of a 10
Gigabit Ethernet link. The service demand was 0.86µs/KByte.
• The bi-directional throughput was 12.4 Gigabits/second. The bi-directional throughput is
limited by the bandwidth capabilities of the PCI-X 266MHz implementation in the
rx8640 server and the maximum bandwidth of the PCI-X 266MHz bus. The service
demand was 1.07µs/KByte.
Figure 2 shows the throughput achieved by the10 Gigabit adapter operating at 9000 MTU.
Table 1 shows the corresponding service demand.
Figure 2
10 Gigabit Ethernet Throughput at 9000 MTU
10GigE Throughput on rx8640
-
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
10^6
bi
ts per secon
d
9000MTU
9,148.69 9,910.67 12,382.79
recv xmit bd