Re: [dpdk-dev] [PATCH] app/test: reduced duration of red_autotest

["Kantecki, Tomasz" <tomasz.kantecki@intel.com>]

Hi Thomas,
 
> > 12s is long for a functional test. We are used to have tests of less than 1s.
> > Do you think this magnitude order can be achieved for red tests?
> 
> This is a real challenge :) Let me take another look into it.

I had a 2nd look into this test suite and reducing time for functional tests is doable but labor intensive. Let me explain:
RED/WRED algorithm is time based (packet queue events in time). For tracking time the test uses TSC (x86 time stamp counter). This could be replaced with some fake time stamp in functional tests and result in significant reduction of execution time. It needs couple of days to carefully replace TSC with a fake time stamp solution without breaking test logic.

Alternatively, one or two more test cases can be removed from the fast_test. A few experiments with this option give me test duration at 5[s] level. I guess this too much off from the 1[s] target.

Regards,
Tomasz


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