USB CDC performance test

Mithran B mithranb22 at
Fri Mar 4 09:36:55 EST 2022

On Fri, 4 Mar 2022 at 19:48, Greg KH <greg at> wrote:

> On Fri, Mar 04, 2022 at 04:27:50PM +0530, Mithran B wrote:
> > Hello,
> >
> > In Host and Gadget systems, enabled the USB CDC drivers.
> > Then nodes are created as /dev/ttyAcm0 and /dev/ttyGs0.
> > Then opened the nodes and write and read back the data.
> > It is working.
> >
> > I want to test the performance of this interface and drivers.
> > Do we have any utility for this?
> > How to do the performance test?
> What exactly do you want to measure?  Determine that first before trying
> to find a test for that.  Without knowing what you want to measure, it's
> hard to tell you how to measure it :)
> good luck!
> greg k-h

Thank you.
I want to send the data at the rate of 5mbps from Host device to target
device using USB CDC - ACM.
In termios functions, how to configure this 5mbps as baud rate and USB
payload size, i.e. packet
size to be in 2K bytes.

How to achieve this?

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