On Tue, Nov 03, 2015 at 04:18:28PM +0900, Namhyung Kim wrote: > Add new call chain option (-g) 'folded' to print callchains in a line. > The callchains are separated by semicolons, and preceded by (absolute) > percent values and a space. > > For example, following 20 lines can be printed in 3 lines with the > folded output mode; > > $ perf report -g flat --no-children | grep -v ^# | head -20 > 60.48% swapper [kernel.vmlinux] [k] intel_idle > 54.60% > intel_idle > cpuidle_enter_state > cpuidle_enter > call_cpuidle > cpu_startup_entry > start_secondary > > 5.88% > intel_idle > cpuidle_enter_state > cpuidle_enter > call_cpuidle > cpu_startup_entry > rest_init > start_kernel > x86_64_start_reservations > x86_64_start_kernel > > $ perf report -g folded --no-children | grep -v ^# | head -3 > 60.48% swapper [kernel.vmlinux] [k] intel_idle > 54.60% > intel_idle;cpuidle_enter_state;cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary > 5.88% > intel_idle;cpuidle_enter_state;cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel > > This mode is supported only for --stdio now and intended to be used by > some scripts like in FlameGraphs[1]. Support for other UI might be > added later. > > [1] http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html > > Requested-by: Brendan Gregg <brendan.d.gr...@gmail.com> > Signed-off-by: Namhyung Kim <namhy...@kernel.org> > --- > tools/perf/ui/stdio/hist.c | 54 > +++++++++++++++++++++++++++++++++++++++++++++ > tools/perf/util/callchain.c | 6 +++++ > tools/perf/util/callchain.h | 3 ++- > 3 files changed, 62 insertions(+), 1 deletion(-)
missing doc update, otherwise Acked-by: Jiri Olsa <jo...@kernel.org> thanks, jirka -- 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/
