> Although presumably this only applies to a small fraction of the VRAM?

They did mention they saw 4GiB of eviction for a single 32MiB scan out image.

So while I would call the image allocation small, it seems to cause an avalanche of evictions. Amplified by the fact that each frame has one of these images, though I expect subsequent frames might have a better chance of already fitting into evicted space.

What I don't exactly understand is: doesn't it make sense to always reserve the contiguous physical memory for this case and not allow anything else to be put in it?