Should minimum_io_size be adjustable (fake 512/4KB drives)?

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My new hard-drive (Seagate ST1500DL003) is a 4KB sector drive that
unfortunately reports a "physical sector size" of 512 byte.

cat /sys/block/sda/queue/physical_block_size
512
cat /sys/block/sda/queue/logical_block_size
512
cat /sys/block/sda/queue/minimum_io_size
512

I have created my filesystems on it with "mkfs.xfs -s size=4096".
Would there be any (performance) benefit if minimum_io_size could be
adjusted to 4096 (by the administrator) in this case?
-- 
Markus
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