Arnaldo Carvalho de Melo 4cb93446c5 perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack ... There is an upper limit to what tooling considers a valid callchain, and it was tied to the hardcoded value in the kernel, PERF_MAX_STACK_DEPTH (127), now that this can be tuned via a sysctl, make it read it and use that as the upper limit, falling back to PERF_MAX_STACK_DEPTH for kernels where this sysctl isn't present. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-yjqsd30nnkogvj5oyx9ghir9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2016-04-27 10:29:07 -03:00
..
Build	perf build: Add scripts objects building	2015-02-12 11:49:53 -03:00
trace-event-perl.c	perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack	2016-04-27 10:29:07 -03:00
trace-event-python.c	perf callchain: Start moving away from global per thread cursors	2016-04-14 14:48:07 -03:00