[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: [RFC] transcendent memory for Linux
Dan Magenheimer wrote: > What if there was a class of memory that is of unknown > and dynamically variable size, is addressable only indirectly > by the kernel, can be configured either as persistent or > as "ephemeral" (meaning it will be around for awhile, but > might disappear without warning), and is still fast enough > to be synchronously accessible? > > We call this latter class "transcendent memory" While true that this memory is "exceeding usual limits", the more important criteria is that it may disappear. It might be clearer to just call it "ephemeral memory". There is going to be some overhead due to the extra copying, and at times there could be two copies of data in memory. It seems possible that certain apps right a the borderline could end up running slower because they can't fit in the regular+ephemeral memory due to the duplication, while the same amount of memory used normally could have been sufficient. I suspect trying to optimize management of this could be difficult. Chris _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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