Re: [RFC] Memory tiering kernel alignment

["Christoph Lameter (Ampere)" <cl@linux.com>]

On Thu, 25 Jan 2024, David Rientjes wrote:

> My dream world would be where we could discuss various use cases for
> locally attached CXL memory and determine, as a group, what the shared,
> comprehensive "Linux vision" for it is and do so before LSF/MM/BPF.  In a
> perfect world, we could block out an expanded MM session in Salt Lake City
> to bring all these concepts together, what approaches sound reasonable vs
> unreasonable, and leave that conference with a clear understanding of what
> needs to happen.

I thought the main use of CXL is as a standardized interconnect. We 
finally can link up heterogeneous systems with various types of nodes in 
larger system configuration. As such it could contain processor nodes, 
memory nodes and i/o nodes and allow the setup of powerful systems with 
large address spaces, coprocessors, diverse types of processing etc etc.

Well yes this is going to create some work but it looks like an exciting 
way to move forward to more powerful system configurations.

All of this will then be possible then in pretty small configurations of 
just a couple of chips.