Re: [Dri-devel] Dri too slow ...

[<Phi...@hp...>]

Linus,
	I used work in the Alpha performance group, where we used DCPI
and Iprobe to find and improve performance on various SPEC cpu and
system benchmarks (SPEC CPU, SPEC Web, SPEC Sfs).  I have about 5
years of experience with performance tools, and I even ported DCPI +
Iprobe from Tru64 to Alpha/linux.

FWIW, I give oprofile a very enthusiastic thumbs up.  It is still rough
around the edges, but has many of the features that made DCPI very
useful.  Most importantly, it has active and dedicated developers.

Anything that you can do to make it easier for oprofile to use the
kernel will be very good for Linux.  (Once the tools are in place, the
highly detailed performance analysis can begin...  Wahoo! That's were
it gets fun! )

--Phil

    Hewlett-Packard: High Performance Technical Computing/Visualization
---------------------------------------------------------------------------
Phi...@hp...                                Performance/Development


On Fri, 2 Aug 2002, Linus Torvalds wrote:

>
>
> On Fri, 2 Aug 2002, Keith Whitwell wrote:
> >
> > Install linux on a P-III or Athlon and use oprofile (oprofile.sourceforge.net).
> >
> > It's ace.
>
> Good. I've been talking to John Levon about integrating it better in the
> standard kernel, so it's good to hear people like it.
>
> And the more people who use it and start getting used to it, the better
> (also because it will show any problems or deficiencies)
>
> 			Linus
>
>