Re: [Intel-gfx] [PATCH v8 10/12] drm/i915: add oa_event_min_timer_exponent sysctl

2016-11-03 Thread Robert Bragg
On Wed, Nov 2, 2016 at 6:29 AM, sourab gupta wrote: > On Thu, 2016-10-27 at 19:14 -0700, Robert Bragg wrote: > > The minimal sampling period is now configurable via a > > dev.i915.oa_min_timer_exponent sysctl parameter. > > > > Following the precedent set by perf, the

Re: [Intel-gfx] [PATCH v8 10/12] drm/i915: add oa_event_min_timer_exponent sysctl

2016-11-02 Thread sourab gupta
On Thu, 2016-10-27 at 19:14 -0700, Robert Bragg wrote: > The minimal sampling period is now configurable via a > dev.i915.oa_min_timer_exponent sysctl parameter. > > Following the precedent set by perf, the default is the minimum that > won't (on its own) exceed the default

[Intel-gfx] [PATCH v8 10/12] drm/i915: add oa_event_min_timer_exponent sysctl

2016-10-27 Thread Robert Bragg
The minimal sampling period is now configurable via a dev.i915.oa_min_timer_exponent sysctl parameter. Following the precedent set by perf, the default is the minimum that won't (on its own) exceed the default kernel.perf_event_max_sample_rate default of 10 samples/s. Signed-off-by: Robert