Re: [Intel-gfx] [PATCH igt] Bump measure_ring_size() timer interval

2018-03-05 Thread Antonio Argenziano
On 05/03/18 03:03, Chris Wilson wrote: It appears that waiting for a 100us period whereby we are unable to submit another batch and proclaim the ring full, may have the false positive where the scheduler intervenes and we are signalled twice before having slept on ring space. Increasing the

[Intel-gfx] [PATCH igt] Bump measure_ring_size() timer interval

2018-03-05 Thread Chris Wilson
It appears that waiting for a 100us period whereby we are unable to submit another batch and proclaim the ring full, may have the false positive where the scheduler intervenes and we are signalled twice before having slept on ring space. Increasing the interval reduces the likelihood of the