Re: [PATCH] [RFC v3] packet: experimental support for 64-bit timestamps

[Arnd Bergmann]

On Wed, Nov 29, 2017 at 5:51 PM, Willem de Bruijn
<willemdebruijn.kernel@xxxxxxxxx> wrote:
>> Thanks for the review! Any suggestions for how to do the testing? If you have
>> existing test cases, could you give my next version a test run to see if there
>> are any regressions and if the timestamps work as expected?
>>
>> I see that there are test cases in tools/testing/selftests/net/, but none
>> of them seem to use the time stamps so far, and I'm not overly familiar
>> with how it works in the details to extend it in a meaningful way.
>
> I could not find any good tests for this interface, either. The only
> user of the interface I found was a little tool I wrote a few years
> ago that compares timestamps at multiple points in the transmit
> path for latency measurement [1]. But it may be easier to just write
> a new test under tools/testing/selftests/net for this purpose. I can
> help with that, too, if you want.

Thanks, that would be great!

     Arnd