lkml.org 
[lkml]   [2008]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86: add the debugfs interface for the sysprof tool
Hi Andrew,

Andrew Morton wrote:
> I didn't need to write a new kernel module to enable that
> thirteen-character shell script, and I don't believe one needs to write a
> new kernel module to put a nice easy-to-use GUI around oprofile either.
>
> This is one of those i-cant-believe-im-having-this-discussion discussions.

Sysprof tracks the full stack frame so it can provide meaningful call
tree (who called what) which is invaluable for spotting hot _paths_. I
don't see how oprofile can do that as it tracks instruction pointers only.

Pekka


\
 
 \ /
  Last update: 2008-02-24 03:53    [from the cache]
©2003-2011 Jasper Spaans