Feedback on benchmarking results of SDHCI and MMCCAM driver

[Ian Lepore]

On Tue, 2018-05-15 at 02:48 +0530, Udit agarwal wrote:
> Hi,
> I have conducted several sd card benchmarking tests on FreeBSD 11.1,
> with
> both SDHCI and the newly incorporated MMCCAM driver to compare their
> performance under different conditions.
> I have compiled the plots and raw data in this spreadsheet.
> <https://docs.google.com/spreadsheets/d/1_lf9S136z0tJyni9W3t1__Rlrkal
> 1fd6L7-vnlmYQpc/edit?usp=sharing>,
> 
> Please provide some feedback on the above results.
> 
> Regards,
> Udit agarwal

I'm not sure there's much use in testing with a 16MB blocksize on an
sdcard. There would likely be more value in testing a few more smaller
sizes, say 4, 16, 64, 256, 512k as being more representative of normal
IO, especially filesystem IO.

-- Ian