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What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?

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From: J.C. Pizarro <jcpiza@...>
To: LKML <linux-kernel@...>
Subject: What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?
Date: Tuesday, March 25, 2008 - 6:03 pm

What means Hugepage?

Does it mean 8KiB? 16KiB? 32KiB? 64KiB? 2MiB? 4MiB?

The real page sizes of x86 and x86-64 are 4 KiB for this linux kernel.

But the page sizes can be soft 8 KiB or 16 KiB or 32 KiB or 64 KiB
if it is implemented in the memory manager of the kernel.

But too they exist real page sizes of 2 MiB and 4 MiB that they have
some reserved entries of TLB in the specs of Intel/AMD processors
for these gigant pages.
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Messages in current thread:
What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?, J.C. Pizarro, (Tue Mar 25, 6:03 pm)
Re: What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?, H. Peter Anvin, (Tue Mar 25, 6:59 pm)