Messages in this thread |  | | Date | Fri, 1 Nov 2013 14:17:34 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH 14/14] perf report: Add -g cumulative option |
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On Thu, Oct 31, 2013 at 03:56:16PM +0900, Namhyung Kim wrote: > From: Namhyung Kim <namhyung.kim@lge.com> > > The -g cumulative option is for showing accumulated overhead (period) > value as well as self overhead. > > Cc: Arun Sharma <asharma@fb.com> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Signed-off-by: Namhyung Kim <namhyung@kernel.org> > --- > tools/perf/Documentation/perf-report.txt | 2 ++ > tools/perf/builtin-report.c | 3 +++ > tools/perf/util/callchain.c | 12 +++++++++++- > 3 files changed, 16 insertions(+), 1 deletion(-) > > diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt > index 10a279871251..b150bfb734f4 100644 > --- a/tools/perf/Documentation/perf-report.txt > +++ b/tools/perf/Documentation/perf-report.txt > @@ -130,6 +130,8 @@ OPTIONS > - graph: use a graph tree, displaying absolute overhead rates. > - fractal: like graph, but displays relative rates. Each branch of > the tree is considered as a new profiled object. + > + - cumulative: accumulate callchain to parent entry so that they can > + show up in the output. > > order can be either: > - callee: callee based call graph. > diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c > index 3b626127c8d6..281053b28898 100644 > --- a/tools/perf/builtin-report.c > +++ b/tools/perf/builtin-report.c > @@ -1030,6 +1030,9 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset) > else if (!strncmp(tok, "fractal", strlen(arg))) > callchain_param.mode = CHAIN_GRAPH_REL; > > + else if (!strncmp(tok, "cumulative", strlen(arg))) > + callchain_param.mode = CHAIN_CUMULATIVE; > + > else if (!strncmp(tok, "none", strlen(arg))) { > callchain_param.mode = CHAIN_NONE; > symbol_conf.use_callchain = false; > diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c > index c10052c6e73c..c3c73eb839df 100644 > --- a/tools/perf/util/callchain.c > +++ b/tools/perf/util/callchain.c > @@ -150,6 +150,14 @@ sort_chain_graph_rel(struct rb_root *rb_root, struct callchain_root *chain_root, > rb_root->rb_node = chain_root->node.rb_root.rb_node; > } > > +static void > +sort_chain_cumulative(struct rb_root *rb_root __maybe_unused, > + struct callchain_root *chain_root __maybe_unused, > + u64 min_hit __maybe_unused, > + struct callchain_param *param __maybe_unused) > +{ > +}
maybe add some commentary explaning that it's intentionaly empty
or maybe dont set it and do following check in __hists__insert_output_entry:
if (symbol_conf.use_callchain && callchain_param.sort) callchain_param.sort(&he->sorted_chain, he->callchain, min_callchain_hits, &callchain_param);
jirka
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