On Wed, May 24, 2017 at 08:38:11AM +0200, Ingo Molnar wrote: > > * Namhyung Kim <namhy...@kernel.org> wrote: > > > The --inline option is to show inlined functions in callchains. > > > > For example, > > > > $ perf script > > a.out 5644 11611.467597: 309961 cycles:u: > > 790 main (/home/namhyung/tmp/perf/a.out) > > 20511 __libc_start_main (/usr/lib/libc-2.25.so) > > 8ba _start (/home/namhyung/tmp/perf/a.out) > > ... > > > > $ perf script --inline > > a.out 5644 11611.467597: 309961 cycles:u: > > 790 main (/home/namhyung/tmp/perf/a.out) > > > > std::__detail::_Adaptor<std::linear_congruential_engine<unsigned long, > > 16807ul, 0ul, 2147483647ul>, double>::operator() > > > > std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned > > long, 16807ul, 0ul, 2147483647ul> > > > > > std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned > > long, 16807ul, 0ul, 2147483647ul> > > > main > > 20511 __libc_start_main (/usr/lib/libc-2.25.so) > > 8ba _start (/home/namhyung/tmp/perf/a.out) > > ... > > Shouldn't this be the default behavior, to make call chains more readable?
AFAIK perf report didn't make it default due to a performance impact, but I didn't know how much it is. Especially if perf was not built with libbfd it'll run external addr2line to get inlined functions for each callchain entry.. Thanks, Namhyung
