[Bug 80578] [All Regression]igt/gem_fence_upload/thread-contention costs long time to execute sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80578

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED

--- Comment #3 from Guo Jinxian <jinxianx.guo at intel.com> ---
Verified on latest -nightly(c95053d599112ec3b8c27a632e3c1544558891a4)

root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_fence_upload --run-subtest thread-contention
IGT-Version: 1.7-gde1e877 (x86_64) (Linux:
3.16.0-rc6_drm-intel-nightly_c95053_20140731+ x86_64)
Contended upload rate for 1 linear threads:     977.577MiB/s
Contended upload rate for 1 tiled threads:      1029.535MiB/s
Contended upload rate for 2 linear threads:     561.581MiB/s
Contended upload rate for 2 tiled threads:      548.894MiB/s
Contended upload rate for 4 linear threads:     415.698MiB/s
Contended upload rate for 4 tiled threads:      419.414MiB/s
Contended upload rate for 8 linear threads:     443.218MiB/s
Contended upload rate for 8 tiled threads:      429.411MiB/s
Contended upload rate for 16 linear threads:    398.678MiB/s
Contended upload rate for 16 tiled threads:     413.333MiB/s
Contended upload rate for 32 linear threads:    402.941MiB/s
Contended upload rate for 32 tiled threads:     384.500MiB/s
Contended upload rate for 64 linear threads:    379.671MiB/s
Contended upload rate for 64 tiled threads:      45.291MiB/s
Test assertion failure function thread_contention, file gem_fence_upload.c:321:
Failed assertion: linear[1] > 0.75 * linear[0]
Subtest thread-contention: FAIL

real    0m30.227s
user    0m1.788s
sys     1m3.923s


About the failure, which tracked by bug 80079

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