* Frederic Weisbecker <fweis...@gmail.com> wrote:
> On Mon, Nov 11, 2013 at 01:13:52PM +0100, Ingo Molnar wrote:
> >
> > It's not an irrelevant feature at all! :-)
> >
> > It's just that for any sort of longer profile it was pretty
> > difficult/frustrating to use, which I think held back adoption.
> >
> > That performance problem got fixed now by you and Namhyung, so I think
> > we'll see even wider adoption of call-graph profiling...
>
> Ah I see now. At the time Linus reported his issue, I had the feeling
> his usecase was a bit "extreme", but I actually have no idea how far
> perf can be used given that I'm mostly used to short benchmarks,
> typically hackbench, perf bench sched messaging et al. Thing is I don't
> use it enough for my real usecases :)
Well, it's a bit of a catch-22: if there are severe scalability problems
for a usecase then people won't use it because they cannot use it. So
developers should usually try to over-measure things and go for extreme
uses and such.
Thanks,
Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
