On 01/10/2017 05:24 AM, Theodore Ts'o wrote:

This may be an area where if we can create the right framework, and
fund some research work, we might be able to get some researchers and
their graduate students interested in doing some work in figuring out
what sort of divisions of responsibilities and hints back and forth
between the storage device and host have the most benefit.

That is a good idea. There is a couple of papers at FAST with
Open-Channel SSDs this year.  They look into the interface and various
ways to reduce latency fluctuations.

One thing I've heard a couple of times is the feature to move the GC
read/write process into the firmware. Enabling the host to offload GC
data movement, while the keeping the host in control. Would this be
beneficial for SMR?

-Matias