perf hists: Fix min callchain hits calculation

The total period should be get using hists__total_period() since it
takes filtered entries into account.  In addition, if callchain mode is
'fractal', the total period should be the entry's period.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1453909257-26015-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 81ce0af..b961946 100644 (file)
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1163,9 +1163,18 @@ static void __hists__insert_output_entry(struct rb_root *entries,
        struct rb_node *parent = NULL;
        struct hist_entry *iter;
 
-       if (use_callchain)
+       if (use_callchain) {
+               if (callchain_param.mode == CHAIN_GRAPH_REL) {
+                       u64 total = he->stat.period;
+
+                       if (symbol_conf.cumulate_callchain)
+                               total = he->stat_acc->period;
+
+                       min_callchain_hits = total * (callchain_param.min_percent / 100);
+               }
                callchain_param.sort(&he->sorted_chain, he->callchain,
                                      min_callchain_hits, &callchain_param);
+       }
 
        while (*p != NULL) {
                parent = *p;
@@ -1195,7 +1204,7 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
        else
                use_callchain = symbol_conf.use_callchain;
 
-       min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);
+       min_callchain_hits = hists__total_period(hists) * (callchain_param.min_percent / 100);
 
        if (sort__need_collapse)
                root = &hists->entries_collapsed;