[PATCH v9 00/12] use nonblock mmc requests to minimize latency

Hi Per,

On Fri, Jul 01 2011, Per Forlin wrote:

How significant is the cache maintenance over head?
It depends, the eMMC are much faster now
compared to a few years ago and cache maintenance cost more due to
multiple cache levels and speculative cache pre-fetch. In relation the
cost for handling the caches have increased and is now a bottle neck
dealing with fast eMMC together with DMA.

Thanks very much, I've pushed v9 of the patchset to mmc-next for 3.1
(after fixing some merge conflicts against Adrian Hunter's recent patches
and rewording some of the commit message texts).

- Chris.
-- 
Chris Ball   [off-list ref]   <http://printf.net/>
One Laptop Per Child