> When SATA uses it's own DMA code this could explain why writing to SATA disk
> is up to 5 times slower than reading.
I don't see why. The SATA code in mainline for Allwinner uses the same
code (including DMA) as used on many other platforms, AFAIK.
But yes, I'm also very curious why SATA write speed seems limited to
about 40MB/s.
Stefan
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