The information of the Ethernet Throughput Performance for AM335x

Hi Daisuke,

Performance for ethernet and other peripherals is captured in the "Features and Performance Guide" meant for each release. Here are the ethernet performance numbers from the latest release:

http://processors.wiki.ti.com/index.php/AM335x-PSP_04.06.00.07_Features_and_Performance_Guide#Performance_and_Benchmarks_2

Thanks,

Sekhar

Hi Daisuke,

When traffic is flowing only between two ports, because only hardware switch is involved and no software comes into picture, I expect we will be able to do line rate (at least at 100Mbps).

When packets are sent to/received from host port (and thus to Linux running on host processor), then the aggregate performance should not any different from what you are now getting from a single port.

Above are only perdictions since I have not really tested this yet.

Thanks,

Sekhar

Hi Daisuke,

I guess we are both talking about two different configurations here.

You seem to be pointing at a use case where the 3-port switch inside the AM335x is configured such that it presents two independent network interfaces in Linux - representing the two external interfaces. Yes, in this configuration, the host processor will be shared between the two independent interfaces (each with its own IP address) and performance numbers will decrease. It will be fair to assume the performance will come down by *atleast* 50% - the actual number can only be determined by experiments.

I was talking about the case where there are two external ports, but both of them feed to the same network interface in Linux (single IP address on the DUT).

Thanks,

Sekhar