Re: [PATCH 2/2] tests: suspend/resume: Increase number of processed frames

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On 21/05/18 10:09, Laurent Pinchart wrote:
> Hi Kieran,
> 
> On Monday, 21 May 2018 11:58:44 EEST Kieran Bingham wrote:
>> On 21/05/18 09:51, Laurent Pinchart wrote:
>>> On Monday, 21 May 2018 11:16:05 EEST Kieran Bingham wrote:
>>>> On 19/05/18 21:34, Laurent Pinchart wrote:
>>>>> The suspend/resume test starts a run of 300 frames and suspends the
>>>>> system one second later. On some SoCs (namely H3 ES2.0) the VSP
>>>>> bandwidth is high enough to complete processing of 300 frames in less
>>>>> than a second. The test thus suspends and resumes the system with the
>>>>> VSP idle instead of running, defeating the purpose of the test.
>>>>>
>>>>> Fix this by increasing the number of frames to process to 1000. The
>>>>> frame count is now passed as an argument to the
>>>>> test_extended_wpf_packing function to ease future changes.
>>>>
>>>> Great idea, to make it easy to update and re-use.
>>>>
>>>>> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
>>>>
>>>> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
>>>>
>>>>> ---
>>>>>
>>>>>  tests/vsp-unit-test-0020.sh | 15 ++++++++-------
>>>>>  1 file changed, 8 insertions(+), 7 deletions(-)
>>>>>
>>>>> diff --git a/tests/vsp-unit-test-0020.sh b/tests/vsp-unit-test-0020.sh
>>>>> index 91f6b167f22e..950c1bebbf2f 100755
>>>>> --- a/tests/vsp-unit-test-0020.sh
>>>>> +++ b/tests/vsp-unit-test-0020.sh
> 
> [snip]
> 
>>>>>  test_hw_pipe() {
>>>>> -	test_extended_wpf_packing RGB24
>>>>> +	# Run the pipeline for 1000 frames. The suspend action occurs
>>>>> between
>>>>> +	# frame #500~#600
>>>>
>>>> I'm not sure it's worth stating when the suspend action occurs, as it's
>>>> variable depending upon the performance of the SoC ... but I'll not
>>>> object to this.
>>>
>>> I agree with you, I'll remove that.
>>>
>>> I think it would make sense to run the pipeline without a limit in the
>>> frame count, and stop streaming after resume. Feel free to give it a try
>>> if you want :-)
>>
>> The question here will be how to we get the frame verification to occur on
>> the 'last N frames'
>>
>> For this, wouldn't we need to extend yavta to support some kind of signal to
>> perform a stream validation at an earlier point and shutdown the stream
>> (probably leaving the count/skip, as maximum durations to run...) And then
>> making sure we knew which frames were actually written out ...
>>
>> I'll leave this ticking in the back of my mind for now :D
> 
> Maybe it will be easier to address when we'll rewrite the tests in Python ? 
> :-)

Possibly - I need to look at Niklas' updates to his vin-tests.

I'm sure there is a lot of potential code - reuse between testing the VIN and
the VSP!.

--
Kieran



>>>>> +	test_extended_wpf_packing RGB24 1000
>>>>>  }
> 

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