Re: [PATCH] x86: add the debugfs interface for the sysprof tool

[Pekka Enberg]

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
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