lkml.org 
[lkml]   [2007]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC 0/7] Postphone reclaim laundry to write at high water marks
On Tue, 21 Aug 2007, Rik van Riel wrote:

> > What is preventing that from occurring right now? If the dirty pags are
> > aligned in the right way you can have the exact same situation.
>
> For one, dirty page writeout is done even when free memory
> is low. The kernel will dig into the PF_MEMALLOC reserves,
> instead of deciding not to do writeout unless there is lots
> of free memory.

Right that is a fundamental problem with this RFC. We need to be able to
get into PF_MEMALLOC reserves for writeout.

> Secondly, why would you want to recreate this worst case on
> purpose every time the pageout code runs?

I did not intend that to occur.


-
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/

\
 
 \ /
  Last update: 2007-08-21 23:59    [W:0.041 / U:0.372 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site