[Intel-gfx] [igt-dev] [PATCH i-g-t 0/2] tests/i915/perf: Add stress / race exercises

[Dixit, Ashutosh]

On Tue, 31 Jan 2023 08:19:48 -0800, Dixit, Ashutosh wrote:
>
> On Tue, 31 Jan 2023 01:17:29 -0800, Janusz Krzysztofik wrote:
> >
>
> Hi Janusz,
>
> > Users reported oopses on list corruptions when using i915 perf with a
> > number of concurrently running graphics applications.  That indicates we
> > are currently missing some important tests for such scenarios.  Cover
> > that gap.
>
> Do these oops etc. have anything to do with perf itself or rather with
> persistence or non-persistence not properly supported with GuC? We should
> have seen such failures with persistence tests (with GuC) itself so I am
> wondering if there's any point of dragging perf into these already muddy
> waters? Such failures should be isolated first with other tests without
> mixing perf into this IMO.

Basically failures in these tests indicate defects in which subsystem? If
the failures do not indicate defects in perf then these tests should not be
added as perf tests. E.g. if failures indicate defects in GuC subsystem
then they should be added as GuC tests.

Otherwise it gets hard to dispostion bugs which are filed due to these
failures. The bugs come to the wrong team and then have to be sent to the
correct team etc.

Thanks.
--
Ashutosh