On 12/21/2017 07:09 PM, Anshuman Khandual wrote: > I had presented a proposal for NUMA redesign in the Plumbers Conference this > year where various memory devices with different kind of memory attributes > can be represented in the kernel and be used explicitly from the user space. > Here is the link to the proposal if you feel interested. The proposal is > very intrusive and also I dont have a RFC for it yet for discussion here. I think that's the best reason to "re-use NUMA" for this: it's _not_ intrusive. Also, from an x86 perspective, these HMAT systems *will* be out there. Old versions of Linux *will* see different types of memory as separate NUMA nodes. So, if we are going to do something different, it's going to be interesting to un-teach those systems about using the NUMA APIs for this. That ship has sailed. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>