Yowza. Console graphics API tells me to alloc a 3840x2160 R8_UNORM tex with 4k row pitch. I know HW just needs 256b alignment,
@rygorous But if you can't pick the pitch, then you're back to wasting a lot of memory though, if the system needs pow2 align for features?
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@cmuratori I don't see what the one has to do with the other. Just because the API doesn't let me pick pitch doesn't mean the HW doesn't. -
@cmuratori (Conversely, most HW does let you pick pitch in some cases but forces pow2 in others.)
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@cmuratori@rygorous I'm a little surprised the set address isn't a hash of more bits of the address, not just a simple subset. -
@tom_forsyth@cmuratori Who said the slowdown was due to cache set conflicts? That's probably a factor, but there's bigger fish to fry. - Show replies
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