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On Mon, 21 Nov 2005, Rob Landley wrote: > 2^64 we may actually live to see the end of someday, but it's not guaranteed. > 2^128 becoming relevant in our lifetimes is a touch unlikely. Some people suggested we don't know usage and organization patterns yet, perhaps something that is very sparse can benefit from linear addressing in a huge (not to say vastly oversized) address space. Perhaps not. One real-world example is that we've been doing RAM overcommit for a long time to account for but not actually perform memory allocations, and on 32-bit machines, 1 GB of RAM already required highmem until recently. So here, 64-bit address space comes as an advantage. -- Matthias Andree - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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