lkml.org 
[lkml]   [2011]   [Jun]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 00/10] mm: Linux VM Infrastructure to support Memory Power Management
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


\
 
 \ /
  Last update: 2011-06-10 18:03    [W:0.115 / U:0.396 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site