lkml.org 
[lkml]   [2008]   [Feb]   [23]   [last100]   RSS Feed
Views: [more markup]   [less markup]   [headers]   [forward]  
 
Messages in this thread
/
DateSun, 24 Feb 2008 04:49:18 +0200
FromPekka Enberg <>
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    [W:0.356 / U:0.250 seconds]
©2003-2008 Jasper Spaans