Re: [Intel-gfx] [PATCH 2/2] drm/i915: Use remap_pfn_range() to prefault all PTE in a single pass

2014-06-12 Thread Daniel Vetter
On Wed, Jun 11, 2014 at 02:17:21PM -0700, Volkin, Bradley D wrote: On Tue, Jun 10, 2014 at 04:14:41AM -0700, Chris Wilson wrote: On an Ivybridge i7-3720qm with 1600MHz DDR3, with 32 fences, Upload rate for 2 linear surfaces: 8134MiB/s - 8154MiB/s Upload rate for 2 tiled surfaces:

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Use remap_pfn_range() to prefault all PTE in a single pass

2014-06-12 Thread Chris Wilson
On Wed, Jun 11, 2014 at 02:17:21PM -0700, Volkin, Bradley D wrote: On Tue, Jun 10, 2014 at 04:14:41AM -0700, Chris Wilson wrote: On an Ivybridge i7-3720qm with 1600MHz DDR3, with 32 fences, using i-g-t/gem_fence_upload: Upload rate for 2 linear surfaces: 8134MiB/s - 8154MiB/s Upload rate

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Use remap_pfn_range() to prefault all PTE in a single pass

2014-06-12 Thread Daniel Vetter
On Wed, Jun 11, 2014 at 02:17:21PM -0700, Volkin, Bradley D wrote: On Tue, Jun 10, 2014 at 04:14:41AM -0700, Chris Wilson wrote: On an Ivybridge i7-3720qm with 1600MHz DDR3, with 32 fences, Upload rate for 2 linear surfaces: 8134MiB/s - 8154MiB/s Upload rate for 2 tiled surfaces:

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Use remap_pfn_range() to prefault all PTE in a single pass

2014-06-11 Thread Volkin, Bradley D
On Tue, Jun 10, 2014 at 04:14:41AM -0700, Chris Wilson wrote: On an Ivybridge i7-3720qm with 1600MHz DDR3, with 32 fences, Upload rate for 2 linear surfaces: 8134MiB/s - 8154MiB/s Upload rate for 2 tiled surfaces: 8625MiB/s - 8632MiB/s Upload rate for 4 linear surfaces: 8127MiB/s -