• Locked Locked
  • Replies 1 reply
  • Subscribers 97 subscribers
  • Views 230 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OMAP3 EHCI USB HS mode performance issue

Vijay
Intellectual 680 points

Hi All,

I am using OMAP3 based board,  running git based kernel 2.6.28.  I have enabled "EHCI HCD (USB 2.0) support"  and PHY mode.
 
I am measuring EHCI HS performance using Catalyst, USB analyzer.   I supposed to get 480 Mbits/s(theoritically), but getting 80 Mbits/s for write and 128 Mbits/s for read.  Please suggest me some matrix/option to increase HS USB EHCI performance.
 
  • TI__Genius 9460 points

    We have observed lower throughput with pen drive so it's better if you take the performance numbers from any USB hard disk.

    With Mistral DC, I am getting a read/write throughput of ~160Mbps on EHCI with USB HDD and CPUIDLE=off.

    Regards,
    Ajay