linux-kernel - [PATCH 50/61] perf c2c report: Add c2c related stats stdio output

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Date:   Mon, 19 Sep 2016 15:09:59 +0200
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Don Zickus <dzickus@...hat.com>, Joe Mario <jmario@...hat.com>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Andi Kleen <andi@...stfloor.org>
Subject: [PATCH 50/61] perf c2c report: Add c2c related stats stdio output

Display c2c related configuration options/setup.
So far it's output of monitored events:

  $ perf c2c report --stats
  ...

  =================================================
                   c2c details
  =================================================
    Events                            : cpu/mem-loads,ldlat=50/pp
                                      : cpu/mem-stores/pp

Link: http://lkml.kernel.org/n/tip-ypz84f3a9fumyttrxurm458z@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-c2c.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index e463da572207..f4bdef5004c9 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -13,6 +13,8 @@
 #include "tool.h"
 #include "data.h"
 #include "sort.h"
+#include "evlist.h"
+#include "evsel.h"
 #include <asm/bug.h>
 #include "ui/browsers/hists.h"
 
@@ -1894,13 +1896,32 @@ static void print_pareto(FILE *out)
 	}
 }
 
-static void perf_c2c__hists_fprintf(FILE *out)
+static void print_c2c_info(FILE *out, struct perf_session *session)
+{
+	struct perf_evlist *evlist = session->evlist;
+	struct perf_evsel *evsel;
+	bool first = true;
+
+	fprintf(out, "=================================================\n");
+	fprintf(out, "                 c2c details                     \n");
+	fprintf(out, "=================================================\n");
+
+	evlist__for_each_entry(evlist, evsel) {
+		fprintf(out, "%-36s: %s\n", first ? "  Events" : "",
+			perf_evsel__name(evsel));
+		first = false;
+	}
+}
+
+static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
 {
 	setup_pager();
 
 	print_c2c__display_stats(out);
 	fprintf(out, "\n");
 	print_shared_cacheline_info(out);
+	fprintf(out, "\n");
+	print_c2c_info(out, session);
 
 	if (c2c.stats_only)
 		return;
@@ -2183,7 +2204,7 @@ static int perf_c2c__report(int argc, const char **argv)
 	ui_progress__finish();
 
 	if (c2c.use_stdio)
-		perf_c2c__hists_fprintf(stdout);
+		perf_c2c__hists_fprintf(stdout, session);
 	else
 		perf_c2c__hists_browse(&c2c.hists.hists);
 
-- 
2.7.4