[PATCH 08/12] perf hists browser: Apply callchain percent limit

[Namhyung Kim]

Currently 'perf report --tui' misses to check percent limit on
callchains.  Fix it.

Reported-by: Andi Kleen <a...@firstfloor.org>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
 tools/perf/ui/browsers/hists.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index c7ca36dae89f..3d64a6573d0c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -681,6 +681,14 @@ static int hist_browser__show_callchain_flat(struct 
hist_browser *browser,
                char folded_sign = ' ';
                int first = true;
                int extra_offset = 0;
+               double percent;
+               u64 hits;
+
+               hits = callchain_cumul_hits(child);
+               percent = 100.0 * hits / total;
+
+               if (percent < callchain_param.min_percent)
+                       goto next;
 
                list_for_each_entry(chain, &child->parent_val, list) {
                        bool was_first = first;
@@ -784,12 +792,20 @@ static int hist_browser__show_callchain_folded(struct 
hist_browser *browser,
                int first = true;
                char *value_str = NULL, *value_str_alloc = NULL;
                char *chain_str = NULL, *chain_str_alloc = NULL;
+               double percent;
+               u64 hits;
 
                if (arg->row_offset != 0) {
                        arg->row_offset--;
                        goto next;
                }
 
+               hits = callchain_cumul_hits(child);
+               percent = 100.0 * hits / total;
+
+               if (percent < callchain_param.min_percent)
+                       goto next;
+
                if (need_percent) {
                        char buf[64];
 
@@ -869,6 +885,14 @@ static int hist_browser__show_callchain_graph(struct 
hist_browser *browser,
                char folded_sign = ' ';
                int first = true;
                int extra_offset = 0;
+               double percent;
+               u64 hits;
+
+               hits = callchain_cumul_hits(child);
+               percent = 100.0 * hits / total;
+
+               if (percent < callchain_param.min_percent)
+                       goto next;
 
                list_for_each_entry(chain, &child->val, list) {
                        bool was_first = first;
@@ -905,6 +929,7 @@ static int hist_browser__show_callchain_graph(struct 
hist_browser *browser,
                                                            new_level, row, 
new_total,
                                                            print, arg, 
is_output_full);
                }
+next:
                if (is_output_full(browser, row))
                        break;
                node = next;
-- 
2.6.4