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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-14 18:29:08 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-14 19:46:58 -0300 |
| commit | c6d4a494a207a336b45e52a44550150964daf1ce (patch) | |
| tree | 98c8db332a61a7c06c942bcf14cfc58cef20d09b /tools/perf/Documentation/perf-trace.txt | |
| parent | 6125cc8dac432948a31df4d4ac20dd2d4f8c6c27 (diff) | |
| download | linux-c6d4a494a207a336b45e52a44550150964daf1ce.tar.bz2 | |
perf trace: Add --max-stack knob
Similar to the one in the other tools (report, script, top).
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@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-lh7kk5a5t3erwxw31ah0cgar@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-trace.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 1bbcf305d233..2ee0c4fee18d 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -129,6 +129,15 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. --event:: Trace other events, see 'perf list' for a complete list. +--max-stack:: + Set the stack depth limit when parsing the callchain, anything + beyond the specified depth will be ignored. Note that at this point + this is just about the presentation part, i.e. the kernel is still + not limiting, the overhead of callchains needs to be set via the + knobs in --call-graph dwarf. + + Default: 127 + --proc-map-timeout:: When processing pre-existing threads /proc/XXX/mmap, it may take a long time, because the file may be huge. A time out is needed in such cases. |