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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.

Commit c58305af authored 8 years ago by Chris Wilson

drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass


Very old numbers indicate this is a 66% improvement when remapping the
entire object for fence contention - due to the elimination of
track_pfn_insert and its strcmp.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Testcase: igt/gem_fence_upload/performance
Testcase: igt/gem_mmap_gtt
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160819155428.1670-6-chris@chris-wilson.co.uk

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Andi @andi
mentioned in commit edeb00f0
· 7 months ago

mentioned in commit edeb00f0

mentioned in commit edeb00f02e97c2c86b052685c4c4dcb7f9eae3a8

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Joonas Lahtinen @dolphin
mentioned in commit 97b67847
· 7 months ago

mentioned in commit 97b67847

mentioned in commit 97b6784753da06d9d40232328efc5c5367e53417

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Joonas Lahtinen @dolphin
mentioned in commit 8bdd9ef7
· 7 months ago

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mentioned in commit 8bdd9ef7e9b1b2a73e394712b72b22055e0e26c3

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