[PATCH i-g-t] tests/intel/xe_drm_fdinfo: Increase sampling period

[Lucas De Marchi]

This reverts commit 4f79f059766c ("tests/intel/xe_drm_fdinfo: Half the
execution time") and goes in the opposite direction, doubling it.
Although in some machines we pass consistently, others like LNL
show sporadic failures.

Even after changes in the kernel to improve it, it still shows those
failures. Also, the failures can be much more frequent by stressing all
the CPUs. Raise the period to reduce the error introduced due to
additional scheduling delays. This shows a good improvement on LNL that
doesn't fail anymore without CPU load and fails once every ~200
iterations with 100% CPU load (vs once every ~3 iterations).

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 tests/intel/xe_drm_fdinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/intel/xe_drm_fdinfo.c b/tests/intel/xe_drm_fdinfo.c
index 5fd7c0416..ef9273e2a 100644
--- a/tests/intel/xe_drm_fdinfo.c
+++ b/tests/intel/xe_drm_fdinfo.c
@@ -82,7 +82,7 @@ struct pceu_cycles {
 	uint64_t total_cycles;
 };
 
-const unsigned long batch_duration_usec = (1 * USEC_PER_SEC) / 4;
+const unsigned long batch_duration_usec = (1 * USEC_PER_SEC);
 
 static const char *engine_map[] = {
 	"rcs",
-- 
2.47.0