Re: [Intel-gfx] [PATCH 2/2] drm/i915/gtt: disable 2M pages for pre-gen11

2019-08-09 Thread Chris Wilson
Quoting Matthew Auld (2019-08-09 20:34:56) > We currently disable THP(Transparent-Huge-Pages) for our shmem objects > due to a performance regression with read BW in some internal > benchmarks. Given that this is our main source of 2M pages, there really > isn't much point in enabling 2M GTT

[Intel-gfx] [PATCH 2/2] drm/i915/gtt: disable 2M pages for pre-gen11

2019-08-09 Thread Matthew Auld
We currently disable THP(Transparent-Huge-Pages) for our shmem objects due to a performance regression with read BW in some internal benchmarks. Given that this is our main source of 2M pages, there really isn't much point in enabling 2M GTT pages, especially this that comes at the cost of