Tool/software: Linux
Hello,
I'm currently using the AR8035 gige phy with the am335x and using kernel v4.4. Network communication works fine, but I noticed that with iperf testing, I'm not approaching anywhere near the advertised speed: http://processors.wiki.ti.com/index.php/AM335x-PSP_04.06.00.08_Features_and_Performance_Guide#Ethernet_Driver
In fact, my issue is basically the same as this one: https://e2e.ti.com/support/arm/sitara_arm/f/791/t/441787
Using an older kernel (3.2), I can reach the advertised speed, so HW is obviously OK.
Any suggestions on how to fix this?
Thanks!
-Keith
UPDATE:
Here's the link to the new SDK's performance (again, no where close to that one or the previous one):
processors.wiki.ti.com/.../Processor_SDK_Linux_Kernel_Performance_Guide
Speed @ 4.4: 86Mb/s up, 156 Mb/s down
Speed @ 3.2: 198Mb/s up, 276Mb/s down