login
Login
/
Register
Search
Forums
News
Blogs
Features
Site
Home
»
Mailing list archives
»
linux-kernel
»
2008
»
March
»
25
Re: What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?
view
thread
!MAILaRCHIVE_VOTE_RePLACE
Previous message: [
thread
] [
date
] [
author
]
Next message: [thread] [
date
] [
author
]
[view in full thread]
From:
H. Peter Anvin <hpa@...>
To: J.C. Pizarro <jcpiza@...>
Cc: LKML <linux-kernel@...>
Subject:
Re: What means Hugepage? 8KiB,16KiB,..,2MiB or 4MiB?
Date: Tuesday, March 25, 2008 - 6:59 pm
J.C. Pizarro wrote:
quoted text
> 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 --
unsubscribe notice
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/
Previous message: [
thread
] [
date
] [
author
]
Next message: [thread] [
date
] [
author
]
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)
Navigation
Create content
Mailing list archives
Recent posts
Popular discussions
linux-kernel
:
david
Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3
Greg KH
[GIT PATCH] driver core patches against 2.6.24
Parag Warudkar
BUG: soft lockup - CPU#1 stuck for 15s! [swapper:0]
holzheu
[RFC/PATCH] Documentation of kernel messages
git
:
linux-netdev
:
Gerrit Renker
[PATCH 27/37] dccp: Integration of dynamic feature activation - part 2 (server side)
Antonio Almeida
HTB accuracy for high speed
David Miller
[GIT]: Networking
Jarek Poplawski
Re: [PATCH] pkt_sched: Destroy gen estimators under rtnl_lock().
openbsd-misc
:
Colocation donated by:
Who's online
There are currently
2 users
and
778 guests
online.
Online users
coldsores234
Nelson
Syndicate