On lör, 2008-03-15 at 08:43 -0700, Arjan van de Ven wrote: > Magnus Fromreide wrote: > > Hello. > > > > I have two memory modules in my computer (.5G+1G) but usually I use a > > lot less memory than 1G that so I would like to ask: > > * Is it possible to tell the system to shut down part of the main > > memory in order to save power? > > * Can I do it from Linux? > > * How? > > this is not an easy task. The way dram normally works is that both dimms > get interleaved over memory (so alternating pieces of the memory come from > different dimms) for performance reasons......
This sounds complicated when there are differently sized and timed dimms involved. > however this also means it's not possible to just turn one dimm off. > > there is some research being done on systems with many dimms, to make the > interleave less > (say from across-8 to across-4) and then be able to turn a few dimms off, but > on a 2-dimm > situation... I've not heard of that yet. Ok, thanks for telling anyway, this is quite interesting. Do you know where I could find mre information about this? /MF _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
