[igt-dev] [Intel-gfx] [PATCH i-g-t] tests/perf_pmu: Log perf timestamp in semaphore wait tests

[Chris Wilson]

Quoting Tvrtko Ursulin (2018-02-15 11:25:15)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> We need more data to debug sporadic test failures.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris