Re: [Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2020-03-12 Thread Umesh Nerlige Ramappa
On Thu, Mar 12, 2020 at 10:37:12PM +0200, Lionel Landwerlin wrote: On 12/03/2020 21:27, Dixit, Ashutosh wrote: On Tue, 03 Mar 2020 14:19:02 -0800, Umesh Nerlige Ramappa wrote: From: Lionel Landwerlin This new parameter let's the application choose how often the OA buffer should be checked on

Re: [Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2020-03-12 Thread Dixit, Ashutosh
On Thu, 12 Mar 2020 13:37:12 -0700, Lionel Landwerlin wrote: > On 12/03/2020 21:27, Dixit, Ashutosh wrote: > > On Tue, 03 Mar 2020 14:19:02 -0800, Umesh Nerlige Ramappa wrote: > >> From: Lionel Landwerlin > >> > >> This new parameter let's the application choose how often the OA > >> buffer

Re: [Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2020-03-12 Thread Lionel Landwerlin
On 12/03/2020 21:27, Dixit, Ashutosh wrote: On Tue, 03 Mar 2020 14:19:02 -0800, Umesh Nerlige Ramappa wrote: From: Lionel Landwerlin This new parameter let's the application choose how often the OA buffer should be checked on the CPU side for data availability. Longer polling period tend to

Re: [Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2020-03-12 Thread Dixit, Ashutosh
On Tue, 03 Mar 2020 14:19:02 -0800, Umesh Nerlige Ramappa wrote: > > From: Lionel Landwerlin > > This new parameter let's the application choose how often the OA > buffer should be checked on the CPU side for data availability. Longer > polling period tend to reduce CPU overhead if the

[Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2020-03-03 Thread Umesh Nerlige Ramappa
From: Lionel Landwerlin This new parameter let's the application choose how often the OA buffer should be checked on the CPU side for data availability. Longer polling period tend to reduce CPU overhead if the application does not care about somewhat real time data collection. v2: Allow

[Intel-gfx] [PATCH 4/7] drm/i915/perf: add new open param to configure polling of OA buffer

2019-01-16 Thread Lionel Landwerlin
This new parameter let's the application choose how often the OA buffer should be checked on the CPU side for data availability. Longer polling period tend to reduce CPU overhead if the application does not care about somewhat real time data collection. v2: Allow disabling polling completely with