Messages in this thread | | | Subject | Re: [PATCH] mm: Introduce kernelcore=reliable option | From | Kamezawa Hiroyuki <> | Date | Wed, 4 Nov 2015 15:56:52 +0900 |
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On 2015/10/31 4:42, Luck, Tony wrote: >> If each memory controller has the same distance/latency, you (your firmware) don't need >> to allocate reliable memory per each memory controller. >> If distance is problem, another node should be allocated. >> >> ...is the behavior(splitting zone) really required ? > > It's useful from a memory bandwidth perspective to have allocations > spread across both memory controllers. Keeping a whole bunch of > Xeon cores fed needs all the bandwidth you can get. >
Hmm. But physical address layout is not related to dual memory controller. I think reliable range can be contiguous by firmware...
-Kame
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