Em Wed, Oct 21, 2015 at 10:06:45AM +0200, Ingo Molnar escreveu: > * Arnaldo Carvalho de Melo <arnaldo.m...@gmail.com> wrote: > > Indeed, finding a default that is deemed adequate for most people is, > > ho-hum, > > difficult 8-)
> > Ingo, what do you think? > So I think the new default is a lot more intuitive, because it starts with a > high > level top-down 'overview' kind of output, allowing one to drill down to the > details. > That's what most other tools do as well by default, and people migrating to > perf > found it pretty confusing that we do a bottom-up kind of callgraph. > To people using perf for the first time it does not matter nearly as much, > but > intuitiveness is still a factor. > The new default requires good call-chains and good symbol resolution to be > maximally effective, but we want perfect callchains and symbols in any case, > right? Sure, but in hindsight, we could've fixed those problems before flipping the switch :-) And also we didn't care about it that much because for callee based callchains they are far from the focus point. - Arnaldo -- 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/
