[lkml]   [2008]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/7] mm: introduce simple_malloc()/simple_free()
On Sun, 16 Nov 2008 12:33:15 +0800
Lai Jiangshan <> wrote:

> some subsystem needs vmalloc() when required memory is large.
> but current kernel has not APIs for this requirement.
> this patch introduces simple_malloc() and simple_free().


I kinda really don't like this approach. vmalloc() (and especially,
vfree()) is a really expensive operation, and vmalloc()'d memory is
also slower (due to tlb pressure). Realistically, people should try hard
to use small datastructure instead....

Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,

 \ /
  Last update: 2008-11-16 05:55    [W:0.078 / U:4.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site