| Rich Freeman on 24 Aug 2016 12:32:31 -0700 |
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| Re: [PLUG] RAID6 or RAID5+HS? |
On Wed, Aug 24, 2016 at 3:05 PM, Matt Mossholder <matt@mossholder.com> wrote: > I thought that was only true in muti-chip Opteron setups. Since the memory > controller is integrated into the CPU, you need to talk CPU-to-CPU to get at > memory that is attached to the other CPU's memory controller... > It is possible. I'd have to read up a lot more on how HyperTransport works. I thought that in a 4-core HT chip that the memory existed on two different busses, with two cores on each bus. Access to the other bus involved some kind of locking or communication with the other memory controller. But, it has been a long time since I've seen those discussions. I'd have to read up more. -- Rich ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug