[kwlug-disc] block size for dd -- no difference

[Chris Frey]

On Tue, Sep 02, 2025 at 10:40:54PM -0400, William Park via kwlug-disc wrote:
> for i in {4,16,64,256}K {1,4,16,64}M; do
>     echo ==== $i ====
>     dd if=/dev/sda of=/dev/sdi bs=$i
>     sync
> done
> 
> No difference.  All did 117MB/s.

Cool test.

What about CPU load?  What about syscall load?

- Chris