lkml.org 
[lkml]   [1999]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: PATCH 2.3.26: kmalloc GFP_ZERO
From
Date
>>>>> "yodaiken" == yodaiken  <yodaiken@chelm.cs.nmt.edu> writes:

yodaiken> On Tue, Nov 09, 1999 at 03:07:12PM +0100, Jes Sorensen
yodaiken> wrote:
Mikulas> to do, it can clear free pages, and when GFP_ZERO request
Mikulas> comes, it returns page directly without clearing overhead.
>> Which I doubt is a win anyway, all you do is to sit there and
>> thrash your cache in the background.

yodaiken> PPC turns cache off and zeros during idle task. This is a
yodaiken> major performance win. We measured.

And Jakub just told us it wasn't a win under the same conditions on
the Sparc64.

Jes

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:0.133 / U:0.232 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site