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Are you on 32-bit, because all his numbers are for 64-bit, except the large table near the beginning, which matches roughly with the numbers you give.

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Yes and No. I run a 64-bit Windows 7 machine, but oddly enough the Fedora 14 machine is 32 bit. Yet it yields similar numbers to the 64-bit Windows.

Sounds like you're running a 32-bit interpreter on your 64-bit machine.

Are you running a 64-bit build of PHP though?

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