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

[Andrew Morton]

On 23 Feb 2008 21:15:52 +0100 Soeren Sandmann <sandmann@xxxxxxxxxxx> wrote:

> It was only later I tried oprofile and found it not only much more
> difficult to use, but also much less useful when I did get it to work.

Could we please be very careful to not conflate oprofile's kernel support
with oprofile userspace?  For the purposes of this discussion the
distinction is most important.

I _assume_ you're referring to oprofile userspace which I agree is
user-hostile.  It is a rich area for others to improve upon.  In so doing
they might even have a need to change oprofile's kernel code.  But simply
giving up and going off and implementing some parallel kernel code is an
utter last resort and should only be done after it has been shown that the
current kernel code is unfixable.
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