Is a 12 MB/s microSD overkill for what the glamo driver does?
mail at mmontour.net
Thu Jul 31 07:07:14 CEST 2008
Jim Colton wrote:
> Hi Mike,
> I looked at the code your wrote. It doesn't do anything that 'time dd'
> already can do.
It includes an fsync() in the timing measurement when writing the file,
and does a posix_fadvise() before reading it back (both intended to make
sure that the I/O is going to the device under test rather than just
hitting cache memory). You can do the same things in a 'dd'-based test,
but it requires a few additional steps.
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