lkml.org 
[lkml]   [2011]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 3/9] kstaled: page_referenced_kstaled() and supporting infrastructure.
From
On Wed, Sep 28, 2011 at 12:18 AM, KAMEZAWA Hiroyuki
<kamezawa.hiroyu@jp.fujitsu.com> wrote:
> 2 questions.
>
> What happens at Transparent HugeTLB pages are splitted/collapsed ?

Nothing special - at the next scan, pages are counted again
considering their new size.

> Does this feature can ignore page migration i.e. flags should not be copied ?

We're not doing it currently. As I understand, the migrate code does
not copy the PTE young bits either, nor does it try to preserve page
order in the LRU lists. So it's not transparent to the LRU algorithms,
but it does not cause incorrect behavior either.

--
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.


\
 
 \ /
  Last update: 2011-09-29 02:11    [W:1.168 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site