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| author | Andi Kleen <ak@linux.intel.com> | 2014-11-12 18:05:22 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-12-01 20:00:31 -0300 |
| commit | fa94c36c29ed8bb4749b5fd7ea51a593f673dcef (patch) | |
| tree | c8e546dc28a20521f02d63e420bd858d98965b52 /tools/perf/Documentation/perf-report.txt | |
| parent | 8b7bad58efb7e3aaff60f7c1fa4361fb8c23181d (diff) | |
| download | linux-fa94c36c29ed8bb4749b5fd7ea51a593f673dcef.tar.gz | |
perf report: Add --branch-history option
Add a --branch-history option to perf report that changes all the
settings necessary for using the branches in callstacks.
This is just a short cut to make this nicer to use, it does not enable
any functionality by itself.
v2: Change sort order. Rename option to --branch-history to
be less confusing.
v3: Updates
v4: Fix conflict with newer perf base
v5: Port to latest tip
v6: Add more comments. Remove CCKEY_ADDRESS setting. Remove
unnecessary branch_mode setting. Use a boolean.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1415844328-4884-5-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 22706beffabc..dd7cccdde498 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -271,6 +271,11 @@ OPTIONS branch stacks and it will automatically switch to the branch view mode, unless --no-branch-stack is used. +--branch-history:: + Add the addresses of sampled taken branches to the callstack. + This allows to examine the path the program took to each sample. + The data collection must have used -b (or -j) and -g. + --objdump=<path>:: Path to objdump binary. |