Re: Why preallocate pmd in x86 32-bit PAE?

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Andi Kleen wrote:
I think Jeremy's question was due to trying to reduce the 32/64-bit differences. Performance-wise, it might add a small amount to user setup time (a typical 32-bit process will need all four, for the main binary, libraries, stack and kernel, respectively)

With the new top down mmap layout and standard 3:1 split it should typically only need two.


Well, three with the kernel.

	-hpa
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