Messages in this thread | | | Subject | Re: [PATCH v3 0/3] create sysfs representation of ACPI HMAT | From | Dave Hansen <> | Date | Fri, 22 Dec 2017 09:13:59 -0800 |
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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.
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