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| author | Namhyung Kim <namhyung@kernel.org> | 2015-10-22 08:28:49 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-10-22 20:40:02 +0200 |
| commit | a2c10d39af49b00514f7cc7b750757fcc2174f0c (patch) | |
| tree | 6c709e08266cc80b49016c71bb8fd261b7629920 /tools/perf/Documentation | |
| parent | perf tools: Move callchain help messages to callchain.h (diff) | |
| download | linux-a2c10d39af49b00514f7cc7b750757fcc2174f0c.tar.xz linux-a2c10d39af49b00514f7cc7b750757fcc2174f0c.zip | |
perf top: Support call-graph display options also
Currently 'perf top --call-graph' option is same as 'perf record'. But
'perf top' also need to receive display options in 'perf report'. To do
that, change parse_callchain_report_opt() to allow record options too.
Now perf top can receive display options like below:
$ perf top --call-graph
Error: option `call-graph' requires a value
Usage: perf top [<options>]
--call-graph
<mode[,dump_size],output_type,min_percent[,print_limit],call_order[,branch]>
setup and enables call-graph (stack chain/backtrace)
recording: fp dwarf lbr, output_type (graph, flat,
fractal, or none), min percent threshold, optional
print limit, callchain order, key (function or
address), add branches
$ perf top --call-graph callee,graph,fp
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Chandler Carruth <chandlerc@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1445495330-25416-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index f6a23eb294e7..556cec09bf50 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -160,9 +160,10 @@ Default is to monitor all CPUS. -g:: Enables call-graph (stack chain/backtrace) recording. ---call-graph:: +--call-graph [mode,type,min[,limit],order[,key][,branch]]:: Setup and enable call-graph (stack chain/backtrace) recording, - implies -g. + implies -g. See `--call-graph` section in perf-record and + perf-report man pages for details. --children:: Accumulate callchain of children to parent entry so that then can |