Re: [PATCH i-g-t 4/8] tests/gem_close_race: Tune down for BAT ~1s.

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On Fri, May 27, 2016 at 03:44:20PM +0300, Mika Kuoppala wrote:
> Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> writes:
> 
> > [ text/plain ]
> >
> > On 27/05/16 13:16, Chris Wilson wrote:
> >> On Fri, May 27, 2016 at 01:10:07PM +0100, Tvrtko Ursulin wrote:
> >>>
> >>> On 27/05/16 12:58, Chris Wilson wrote:
> >>>> On Fri, May 27, 2016 at 02:50:34PM +0300, Marius Vlad wrote:
> >>>>> Signed-off-by: Marius Vlad <marius.c.vlad@xxxxxxxxx>
> >>>>
> >>>> Nak. It's a race detector. Please suggest how to increase detection
> >>>> rates.
> >>>
> >>> As a more or less well know TV personality would say - "it's better
> >>> than nothing"! :))
> >>>
> >>> Seriously, under the new rules this is all we can do. Full
> >>> gem-close-race will (will it?) run in the nightly run so a little
> >>> bit more pain while bisecting breakages but those are the rules. We
> >>> can give them a go and see how it works out.
> >>
> >> Wrong approach. Right approach would be to add a new test that reliably
> >> detected a checklist of the most common races in under 1s. Nerfing a
> >> test to make it useless makes BAT equally useless.
> >>
> >> So we are giving up on BAT?
> >
> > If it is not possible to stuff everything into the allocated budget, and 
> > in cases where it may not be possible to come up with a 1s race 
> > detector, it makes sense to move the test out of BAT and into the 
> > nightly runs.
> >
> 
> With tests to poke out races, I think the best way is to take
> them out from BAT and move to nightly.

Right, going to send another series with them removed if everyone
agrees on this.

> 
> As A is for acceptance, it is not much value as some poor soul
> will hit the race 1 month after we regressed it.
> 
> - Mika
> 
> 
> > Agreement was that the time limits are hard limits so thats pretty much 
> > it. We can do this now and hit the targets and them add more tests if 
> > and when someone manages to implement them.
> >
> > I don't have a problem with that, B in BAT stands for basic anyway.
> >
> > We just adjust the model that when nightly test run fails someone from 
> > QA gets tasked with bisection etc as a top priority.
> >
> > Regards,
> >
> > Tvrtko

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