lkml.org 
[lkml]   [2012]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Transparent huge pages and shmem?
On Mon, 23 Jan 2012, Borzenkov, Andrey wrote:

> In case of THP enabled kernel - will THP be used for SysV shmem?
> The obvious target is to avoid pre-allocation of huge pages pool
> for databases like Oracle that is required today.

It will one day, yes. Various people are very interested in THP on
tmpfs/shmem, which serves SysV shm. But at present THP is limited to
private anonymous pages, and its extension to shared file pages is not
trivial. I have not heard of anyone making significant progress on
that as yet - but perhaps someone is working on it behind the scenes.

Hugh


\
 
 \ /
  Last update: 2012-01-23 20:41    [from the cache]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and my Meterkast|Read the blog