svn commit: r200184 - stable/8/sbin/ipfw

[Brooks Davis]

On Sun, Dec 06, 2009 at 07:01:33PM +0000, Luigi Rizzo wrote:
> Author: luigi
> Date: Sun Dec  6 19:01:33 2009
> New Revision: 200184
> URL: http://svn.freebsd.org/changeset/base/200184
> 
> Log:
>   mfc r200056
>     use qsort_r instead of heapsort;

This seems like a move in the wrong direction.  The use of a recursive
algorithm in the kernel seems generally ill-advised and I was rather
disturbed when I found we had a quick sort implementation in libkern.

Unless you know the number of items is small, quick sort isn't safe and
if the number is small, heap sort is plenty efficient.

-- Brooks
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/svn-src-stable-8/attachments/20091207/84f74a33/attachment.pgp