Re: [Intel-gfx] [PATCH] drm/i915: Disable THP until we have a read BW W/A

On 24 November 2017 at 11:27, Joonas Lahtinen wrote: > We seem to be missing some W/A for 2M pages and are getting > a hit on raw read bandwidths (even 30%) even though the write > bandwidths improve (even 10%). > > For now, disable THP, which is our only practical source of > 2M pages until we ha

Re: [Intel-gfx] [PATCH] drm/i915: Disable THP until we have a read BW W/A

Quoting Chris Wilson (2017-11-24 12:12:33) > Quoting Joonas Lahtinen (2017-11-24 11:27:50) > > We seem to be missing some W/A for 2M pages and are getting > > a hit on raw read bandwidths (even 30%) even though the write > > bandwidths improve (even 10%). > > > > For now, disable THP, which is our

Re: [Intel-gfx] [PATCH] drm/i915: Disable THP until we have a read BW W/A

Quoting Joonas Lahtinen (2017-11-24 11:27:50) > We seem to be missing some W/A for 2M pages and are getting > a hit on raw read bandwidths (even 30%) even though the write > bandwidths improve (even 10%). > > For now, disable THP, which is our only practical source of > 2M pages until we have a W/

[Intel-gfx] [PATCH] drm/i915: Disable THP until we have a read BW W/A

We seem to be missing some W/A for 2M pages and are getting a hit on raw read bandwidths (even 30%) even though the write bandwidths improve (even 10%). For now, disable THP, which is our only practical source of 2M pages until we have a W/A for the issue. Reported-by: Valtteri Rantala Fixes: b9