perf timechart: Add support for topology

Add -t switch to sort CPUs topologically.

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ramkumar Ramachandra <artagnon@gmail.com>
Link: http://lkml.kernel.org/r/1385995056-20158-5-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index db9c4c172587..8bde57c5c908 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -58,7 +58,8 @@ struct timechart {
                                 first_time, last_time;
         bool                    power_only,
                                 tasks_only,
-                                with_backtrace;
+                                with_backtrace,
+                                topology;
 };
 
 struct per_pidcomm;
@@ -1077,6 +1078,18 @@ static int process_header(struct perf_file_section *section __maybe_unused,
         case HEADER_NRCPUS:
                 tchart->numcpus = ph->env.nr_cpus_avail;
                 break;
+
+        case HEADER_CPU_TOPOLOGY:
+                if (!tchart->topology)
+                        break;
+
+                if (svg_build_topology_map(ph->env.sibling_cores,
+                                           ph->env.nr_sibling_cores,
+                                           ph->env.sibling_threads,
+                                           ph->env.nr_sibling_threads))
+                        fprintf(stderr, "problem building topology\n");
+                break;
+
         default:
                 break;
         }
@@ -1267,6 +1280,8 @@ int cmd_timechart(int argc, const char **argv,
                     "Look for files with symbols relative to this directory"),
         OPT_INTEGER('n', "proc-num", &tchart.proc_num,
                     "min. number of tasks to print"),
+        OPT_BOOLEAN('t', "topology", &tchart.topology,
+                    "sort CPUs according to topology"),
         OPT_END()
         };
         const char * const timechart_usage[] = {