igt/perf_pmu: Speed up frequency measurement
Use the normal batch_duration_ns and display the sampled frequency:
Frequency: min=100, max=750, boost=750 MHz
Min frequency: requested 100.0, actual 100.0
Max frequency: requested 755.6, actual 755.6
v2: Remove the early spin_batch_end and assert the measured frequencies
are within tolerance of our target.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
1 file changed