Performance and Recommended Use of AD385A 10 Gigabit Ethernet SR Cards

Scalability Tests
7
Scalability Tests
The AD385A exhibited linear scaling in performance when additional adapters were
added to the system. During scalability tests, adapters were installed on slots 3 and 4 on
both I/O bays of the rx8640.
The aggregate transmit throughput was 39.6 Gigabits/sec with four adapters installed on
the server, when operating at 9000 MTU. The transmit performance with one, two, three
and four AD385A adapters is shown in Figure 4. The performance scales linearly with the
number of adapters.
Figure 4
10 Gigabit Ethernet Transmit Scalability Tests
10GigE Transmit Scaling on rx8640
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
10^6 bits per second
1500MTU
9416.75 18594.01 27731.57 35875.46
9000MTU
9,910.67 19,819.41 29,723.90 39,611.38
1 adapter 2 adapters 3 adapters 4 adapters