[FFmpeg-devel] Running FATE

[James Almer]

On 9/9/2021 5:04 PM, Soft Works wrote:
> 
> 
>> -----Original Message-----
>> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
>> Gyan Doshi
>> Sent: Thursday, 9 September 2021 09:24
>> To: ffmpeg-devel at ffmpeg.org
>> Subject: Re: [FFmpeg-devel] Running FATE
>>
>>
>>
>> On 2021-09-09 11:03 am, Soft Works wrote:
>>> Hi,
>>>
>>> I have a few questions regarding FATE:
>>>
>>> - Is it possible to run FATE in a way that it doesn't stop on
>> error?
>>
>> make -k fate
>>
>>> - Is there a better way to exclude certain tests other than
>> commenting
>>>     them in the mak files?
>>
>> Don't enable/compile at least one of the dependencies of those tests.
>>
>>> - Is it possible to run just a specific test via command line?
>>
>> make fate-specific-test
>>
>> Regards,
>> Gyan
> 
> Hi,
> 
> one more question I forgot to ask: is there a safe way to accelerate those
> test runs?
> 
> I had tried with something like '-j8', but this didn't produce
> reliable results.
> Without deeper investigation it seems that this causes tests to be run
> before their dependencies have been built.

That shouldn't happen. -j# is the correct way to parallelize fate runs. 
Dependencies are always built before a test is run, regardless of job 
count. If they aren't, then there's a bug in the relevant Makefile 
recipe, like for example said dependencies not being correctly signaled.

> 
> Is there a proper way to parallelize test runs or is it recommended to
> run these sequentially always?
> 
> Thanks,
> softworkz
> 
> 
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