On 01/09/17 16:28, Adrian Hunter wrote:

On 01/09/17 15:58, Ulf Hansson wrote:

quoted

+ Christoph

On 1 September 2017 at 13:42, Adrian Hunter [off-list ref] wrote:

quoted

On 31/08/17 14:56, Adrian Hunter wrote:

quoted

Here is V7 of the hardware command queue patches without the software
command queue patches, now using blk-mq.

HW CMDQ offers 25% - 50% better random multi-threaded I/O.  I see a slight
2% drop in sequential read speed but no change to sequential write.

Any comments?

A couple of overall comments, for now.

To make sure we don't overlook something when converting to mq, I
would prefer that we first convert the existing mmc block code to mq,
then we add CMDQ on top.

That doesn't make sense.  This patch set is not converting the legacy driver
to mq therefore it cannot overlook anything for converting to mq.

And then you go silent again.

I can send blk-mq support for legacy requests in a few days if you like, but
I want to hear a better explanation of why you are delaying CQE support.