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* [PATCH i-g-t v1 0/3] tests/intel/xe_pmu: Guard engine accuracy tests against busy DRM clients
@ 2026-03-30 15:39 Soham Purkait
  2026-03-30 15:39 ` [PATCH i-g-t v1 1/3] lib/igt_drm_clients: Add helper to list and count the DRM client processes Soham Purkait
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: Soham Purkait @ 2026-03-30 15:39 UTC (permalink / raw)
  To: igt-dev, riana.tauro, badal.nilawar, kamil.konieczny,
	vinay.belgaumkar
  Cc: anshuman.gupta, soham.purkait

The engine-activity accuracy subtests are sensitive to unrelated
DRM clients on the same card. When other processes keep the device busy,
the measured engine activity can be higher than expected and trigger
false failures.

This series improves the robustness of the subtest by first introducing
a helper to enumerate DRM client processes associated with a given card
fd, and subsequently using it in engine accuracy tests to detect competing
clients triggering a warning, and skipping the test.

Soham Purkait (3):
  lib/igt_drm_clients: Add helper to list and count the DRM client
    processes
  tests/intel/xe_pmu: Check if other processes are using the DRM device
  HAX: Add engine accuracy tests to xe-fast-feedback.testlist

 lib/igt_drm_clients.c                    | 93 ++++++++++++++++++++++++
 lib/igt_drm_clients.h                    | 10 +++
 tests/intel-ci/xe.fast-feedback.testlist |  3 +
 tests/intel/xe_pmu.c                     | 25 +++++++
 tests/meson.build                        |  1 +
 5 files changed, 132 insertions(+)

-- 
2.43.0


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2026-03-31 14:04 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-03-30 15:39 [PATCH i-g-t v1 0/3] tests/intel/xe_pmu: Guard engine accuracy tests against busy DRM clients Soham Purkait
2026-03-30 15:39 ` [PATCH i-g-t v1 1/3] lib/igt_drm_clients: Add helper to list and count the DRM client processes Soham Purkait
2026-03-30 15:39 ` [PATCH i-g-t v1 2/3] tests/intel/xe_pmu: Check if other processes are using the DRM device Soham Purkait
2026-03-30 15:39 ` [PATCH i-g-t v1 3/3] HAX: Add engine accuracy tests to xe-fast-feedback.testlist Soham Purkait
2026-03-31  4:11 ` ✓ Xe.CI.BAT: success for tests/intel/xe_pmu: Guard engine accuracy tests against busy DRM clients Patchwork
2026-03-31  4:28 ` ✓ i915.CI.BAT: " Patchwork
2026-03-31  9:40 ` ✓ Xe.CI.FULL: " Patchwork
2026-03-31 14:04 ` ✗ i915.CI.Full: failure " Patchwork

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