Messages in this thread | | | Date | Fri, 10 Jun 2011 16:59:54 +0100 | From | Matthew Garrett <> | Subject | Re: [PATCH 00/10] mm: Linux VM Infrastructure to support Memory Power Management |
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On Fri, Jun 10, 2011 at 08:11:21AM -0700, Paul E. McKenney wrote:
> Of course, on a server, you could get similar results by having a very > large amount of memory (say 256GB) and a workload that needed all the > memory only occasionally for short periods, but could get by with much > less (say 8GB) the rest of the time. I have no idea whether or not > anyone actually has such a system.
For the server case, the low hanging fruit would seem to be finer-grained self-refresh. At best we seem to be able to do that on a per-CPU socket basis right now. The difference between active and self-refresh would seem to be much larger than the difference between self-refresh and powered down.
-- Matthew Garrett | mjg59@srcf.ucam.org
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