perf sort: Provide a way to find out if per-thread bucketing is in place

Now the UI browsers will be able to offer thread related operations only
if the thread is part of the sort order in use, i.e. if hist_entry stats
are all for a single thread.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>,
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org
[ Carved out from a  larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index ec72234..898e4b0 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -25,6 +25,7 @@ int           sort__has_parent = 0;
 int            sort__has_sym = 0;
 int            sort__has_dso = 0;
 int            sort__has_socket = 0;
+int            sort__has_thread = 0;
 enum sort_mode sort__mode = SORT_MODE__NORMAL;
 
 
@@ -2136,6 +2137,8 @@ static int sort_dimension__add(const char *tok,
                        sort__has_dso = 1;
                } else if (sd->entry == &sort_socket) {
                        sort__has_socket = 1;
+               } else if (sd->entry == &sort_thread) {
+                       sort__has_thread = 1;
                }
 
                return __sort_dimension__add(sd);

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 687bbb1..09616f0 100644 (file)
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -35,6 +35,7 @@ extern int sort__need_collapse;
 extern int sort__has_parent;
 extern int sort__has_sym;
 extern int sort__has_socket;
+extern int sort__has_thread;
 extern enum sort_mode sort__mode;
 extern struct sort_entry sort_comm;
 extern struct sort_entry sort_dso;