lkml.org 
[lkml]   [2001]   [Jan]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mm/mmap.c find_vma(), kernel 2.4.0


On Mon, 8 Jan 2001, Robert Wienholt, Jr. wrote:

> Gentlemen,
>
> I was looking through some of the memory management code today and
> came across something that may provide a minor performance boost. I have
> included a patch below for the 2.4.0 source.
>
> In the find_vma function a cached vma is checked and if that is
> not the requested vma, the linked list (unless there's an avl tree) is
> traversed from the beginning. My thought was that if the cached vma is
> somewhere in the middle of a "long" list, and the memory address we are
^^^^^^^^^^
No such thing. If you get many VMAs you get AVL tree and that's what is
used for search.

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

\
 
 \ /
  Last update: 2005-03-22 12:52    [W:0.024 / U:8.184 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site