Performance and Recommended Use of AB545A 4-Port Gigabit Ethernet Cards

Gigabit Ethernet Receive Performance
7
Gigabit Ethernet Receive Performance
Figure 5 shows the performance results for the Gigabit Ethernet ports when receive (inbound
unidirectional) traffic is run through the card with a standard 1500-byte MTU.
Following are highlights of the impressive performance achieved during receive traffic
testing:
Figure 5
AB545A Gigabit Ethernet Receive Throughput in
rx4640
• Receive traffic over 1 port achieved link rate on the rx4640 reaching 948 megabits per
second.
• Receive traffic over 2 ports also achieved link rate reaching 1.896 gigabits of
application data per second of throughput.
• Receive traffic over 3 ports also achieved link rate reaching 2.844 gigabits of
application data per second of throughput.
• With all 4 ports receiving simultaneously, the AB545A provided an exceptional 3.165
gigabits of application data per second of throughput -- sustaining 83.3% of link rate.
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
Megabits per second
rx4640 PCIX-133
948 1,896 2,844 3,165
1 port recv 2 ports recv 3 ports recv 4 ports recv