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66AK2H12 K2H EVM - slow ethernet performance

Other Parts Discussed in Thread: 66AK2H12

I have an EVM K2H with keystone 66AK2H12 CPU. On it there is the arago linux from TI running (Arago 2013.4 / kernel 3.8.4-g42865v7)

I tested the performance of the ethernet devices. I use a program which sends data over a TCP connection to a second computer (Intel Core I7).

I found out, that the EVM can only send 30 MBytes/sec, while it can receive 100 MBytes/sec. Meaning that the system sends only 30 % of the possible amount of data.

The same program works well, when using it only on Intel-machines. I nearly get up to the maximum of the ethernet adapters.

The CPU is not the bottleneck, it is used only for 6 percent during the send.

Has anybody the same experience?

Does anybody know, how to speed up the ethernet to reach the maximum of 100MBytes/sec?

  • Hi, Peter,

    We are tuning the ethernet performance and are able to achieve higher numbers now. Please try the test after MCSDK 3.0.2 is released. I ran netperf on the pre-released Linux, and I got 950+Mb/s in both directions.

    Rex