[tip:perf/core] perf c2c report: Add c2c related stats stdio output

[tip-bot for Jiri Olsa]

Commit-ID:  2709b97dc2e250b5365629b99da5aa1cca7708f8
Gitweb:     http://git.kernel.org/tip/2709b97dc2e250b5365629b99da5aa1cca7708f8
Author:     Jiri Olsa <jo...@kernel.org>
AuthorDate: Sat, 27 Aug 2016 11:40:23 +0200
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Fri, 21 Oct 2016 10:31:56 -0300

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

Signed-off-by: Jiri Olsa <jo...@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Andi Kleen <a...@firstfloor.org>
Cc: David Ahern <dsah...@gmail.com>
Cc: Don Zickus <dzic...@redhat.com>
Cc: Joe Mario <jma...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Link: http://lkml.kernel.org/n/tip-ypz84f3a9fumyttrxurm4...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/builtin-c2c.c | 33 +++++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index f7b118b..88d88ea 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"
 
@@ -1893,13 +1895,32 @@ 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;
@@ -2073,18 +2094,18 @@ out:
        return 0;
 }
 
-static void perf_c2c_display(void)
+static void perf_c2c_display(struct perf_session *session)
 {
        if (c2c.use_stdio)
-               perf_c2c__hists_fprintf(stdout);
+               perf_c2c__hists_fprintf(stdout, session);
        else
                perf_c2c__hists_browse(&c2c.hists.hists);
 }
 #else
-static void perf_c2c_display(void)
+static void perf_c2c_display(struct perf_session *session)
 {
        use_browser = 0;
-       perf_c2c__hists_fprintf(stdout);
+       perf_c2c__hists_fprintf(stdout, session);
 }
 #endif /* HAVE_SLANG_SUPPORT */
 
@@ -2197,7 +2218,7 @@ static int perf_c2c__report(int argc, const char **argv)
 
        ui_quirks();
 
-       perf_c2c_display();
+       perf_c2c_display(session);
 
 out_session:
        perf_session__delete(session);