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Incrementing the reference count on all objects walked when searching for space in the aperture is a non-neglible amount of overhead. In fact, we only need to hold on to a reference for objects that we will evict, so we can therefore delay the referencing until we find a suitable hole and only add those objects that fall inside. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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