lkml.org 
[lkml]   [2008]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?
J.C. Pizarro wrote:
> 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.

On x86, it means 2/4 MiB, or even 1 GiB in some very strange
circumstances. Other architectures might be different.

-hpa


\
 
 \ /
  Last update: 2008-03-26 00:03    [W:0.145 / U:0.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site