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4cb93446c5
linux/tools/perf
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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
..
arch perf tools: Update x86's syscall_64.tbl, adding preadv2 & pwritev2 2016-04-26 13:15:02 -03:00
bench perf bench: Remove one more die() call 2016-04-26 13:28:40 -03:00
config perf tools: Build syscall table .c header from kernel's syscall_64.tbl 2016-04-08 09:58:14 -03:00
Documentation perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
jvmti perf jit: Add support for using TSC as a timestamp 2016-04-01 18:42:55 -03:00
python
scripts perf script: Fix postgresql ubuntu install instructions 2016-04-19 12:36:54 -03:00
tests perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
trace perf trace: Read thread's COMM from /proc when not set 2016-04-26 13:15:00 -03:00
ui perf hists browser: Fold two consecutive symbol_conf.use_callchain ifs 2016-04-18 12:26:27 -03:00
util perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
.gitignore
Build
builtin-annotate.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-bench.c
builtin-buildid-cache.c
builtin-buildid-list.c
builtin-config.c perf config: Make show_config() use perf_config_set 2016-04-14 09:15:47 -03:00
builtin-data.c
builtin-diff.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-evlist.c
builtin-help.c perf help: Use asprintf instead of adhoc equivalents 2016-03-23 16:36:07 -03:00
builtin-inject.c perf tools: Add time conversion event 2016-03-31 10:52:24 -03:00
builtin-kmem.c perf callchain: Start moving away from global per thread cursors 2016-04-14 14:48:07 -03:00
builtin-kvm.c perf evsel: Do not use globals in config() 2016-04-11 22:18:20 -03:00
builtin-list.c
builtin-lock.c
builtin-mem.c perf mem: Add -U/-K (--all-user/--all-kernel) options 2016-03-30 11:14:07 -03:00
builtin-probe.c
builtin-record.c perf tools: Ditch record_opts.callgraph_set 2016-04-18 12:26:27 -03:00
builtin-report.c perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
builtin-sched.c perf sched map: Display only given cpus 2016-04-13 10:11:52 -03:00
builtin-script.c perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
builtin-stat.c perf stat: Add --metric-only support for -A 2016-03-10 16:50:47 -03:00
builtin-timechart.c perf machine: Rename perf_event__preprocess_sample to machine__resolve 2016-03-23 12:03:08 -03:00
builtin-top.c perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
builtin-trace.c perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
builtin-version.c
builtin.h perf tools: Remove needless 'extern' from function prototypes 2016-03-23 15:06:35 -03:00
command-list.txt
CREDITS
design.txt
Makefile
Makefile.perf perf tools: Build syscall table .c header from kernel's syscall_64.tbl 2016-04-08 09:58:14 -03:00
MANIFEST perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers 2016-03-24 12:28:57 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h
perf-with-kcore.sh
perf.c perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack 2016-04-27 10:29:07 -03:00
perf.h perf tools: Ditch record_opts.callgraph_set 2016-04-18 12:26:27 -03:00