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From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
To: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	Marius Vlad <marius.c.vlad@intel.com>,
	intel-gfx@lists.freedesktop.org, joonas.lahtinen@linux.intel.com,
	daniel@ffwll.ch, daniela.doras-prodan@intel.com
Subject: Re: [PATCH i-g-t 4/8] tests/gem_close_race: Tune down for BAT ~1s.
Date: Fri, 27 May 2016 15:44:20 +0300	[thread overview]
Message-ID: <874m9jisbf.fsf@gaia.fi.intel.com> (raw)
In-Reply-To: <57483E0E.7060904@linux.intel.com>

Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> 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@intel.com>
>>>>
>>>> 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.

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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  parent reply	other threads:[~2016-05-27 12:47 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-27 11:50 [PATCH i-g-t 1/8] tests/gem_exec_flush: Tune down BAT timeout to ~1sec Marius Vlad
2016-05-27 11:50 ` [PATCH i-g-t 2/8] tests/gem_ctx_switch: Tune down for BAT ~1s Marius Vlad
2016-05-27 12:00   ` Chris Wilson
2016-05-27 11:50 ` [PATCH i-g-t 3/8] tests/gem_exec_nop: Tune down timeout " Marius Vlad
2016-05-27 12:06   ` Chris Wilson
2016-05-27 11:50 ` [PATCH i-g-t 4/8] tests/gem_close_race: Tune down " Marius Vlad
2016-05-27 11:58   ` Chris Wilson
2016-05-27 12:10     ` Tvrtko Ursulin
2016-05-27 12:16       ` Chris Wilson
2016-05-27 12:31         ` Tvrtko Ursulin
2016-05-27 12:44           ` Chris Wilson
2016-05-27 12:44           ` Mika Kuoppala [this message]
2016-05-27 14:28             ` Marius Vlad
2016-05-27 14:26         ` Marius Vlad
2016-05-27 14:25       ` Marius Vlad
2016-05-27 11:50 ` [PATCH i-g-t 5/8] tests/gem_sync: Tune down for BAT to ~1s for basic-each and ~2s for basic-all Marius Vlad
2016-05-27 11:59   ` Chris Wilson
2016-05-27 11:50 ` [PATCH i-g-t 6/8] tests/gem_exec_fault: Decrease the counts to lower the time for BAT Marius Vlad
2016-05-27 12:01   ` Chris Wilson
2016-05-27 11:50 ` [PATCH i-g-t 7/8] tests/gem_tiled_pread_basic: Rename test and BATify Marius Vlad
2016-05-27 12:03   ` Chris Wilson
2016-05-27 11:50 ` [PATCH i-g-t 8/8] tests/gem_exec_suspend: Remove hibernate test from BAT Marius Vlad
2016-05-27 12:00   ` Chris Wilson
2016-05-27 11:58 ` [PATCH i-g-t 1/8] tests/gem_exec_flush: Tune down BAT timeout to ~1sec Chris Wilson

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