[PATCH 1/2] tests/intel/xe_exec_system_allocator: Add section to trigger 64k fault

[Matthew Brost]

On Mon, Jun 23, 2025 at 11:54:26AM +0200, Francois Dugast wrote:
> On Mon, Jun 16, 2025 at 12:06:39AM -0700, Matthew Brost wrote:
> > 64K is the fault size in Xe. Add sections to explicitly trigger these
> > faults, as they are interesting and having dedicated sections helps with
> > profiling the KMD.
> > 
> > Signed-off-by: Matthew Brost <matthew.brost at intel.com>
> 
> Nit: to help clearly identify the tests, we could rename the previous
> section from "many-large-%s" to "many-2m-%s".
> 

I think that is a good idea but let's see if that messes with our CI stats.

Matt

> Reviewed-by: Francois Dugast <francois.dugast at intel.com>
> 
> > ---
> >  tests/intel/xe_exec_system_allocator.c | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> > 
> > diff --git a/tests/intel/xe_exec_system_allocator.c b/tests/intel/xe_exec_system_allocator.c
> > index 2a99bd435a..65d281c784 100644
> > --- a/tests/intel/xe_exec_system_allocator.c
> > +++ b/tests/intel/xe_exec_system_allocator.c
> > @@ -806,6 +806,10 @@ partial(int fd, struct drm_xe_engine_class_instance *eci, unsigned int flags)
> >   * Description: Run %arg[1] system allocator test many times with large allocations
> >   * Test category: stress test
> >   *
> > + * SUBTEST: many-64k-%s
> > + * Description: Run %arg[1] system allocator test many times with large allocations
> > + * Test category: stress test
> > + *
> >   * SUBTEST: many-large-execqueues-%s
> >   * Description: Run %arg[1] system allocator test on many exec_queues with large allocations
> >   *
> > @@ -1741,6 +1745,11 @@ igt_main
> >  				test_exec(fd, hwe, 1, 128, SZ_2M, 0, 0, NULL,
> >  					  NULL, s->flags);
> >  
> > +		igt_subtest_f("many-64k-%s", s->name)
> > +			xe_for_each_engine(fd, hwe)
> > +				test_exec(fd, hwe, 1, 128, SZ_64K, 0, 0, NULL,
> > +					  NULL, s->flags);
> > +
> >  		igt_subtest_f("many-large-execqueues-%s", s->name)
> >  			xe_for_each_engine(fd, hwe)
> >  				test_exec(fd, hwe, 16, 128, SZ_2M, 0, 0, NULL,
> > -- 
> > 2.34.1
> >