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Groups > linux.kernel > #1512255

[PATCH v4 5/6] perf report: Show branch info in callchain entry for browser mode

From Jin Yao <yao.jin@linux.intel.com>
Newsgroups linux.kernel
Subject [PATCH v4 5/6] perf report: Show branch info in callchain entry for browser mode
Date 2016-10-31 02:20 +0100
Message-ID <sy9qx-3UZ-7@gated-at.bofh.it> (permalink)
References <sy9qx-3UZ-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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If the branch is 100% predicated then the "predicated" is hide.
Similarly, if there is no branch tsx abort, the "abort" is hide.
There is only cycles shown (cycle is supported on skylake platform,
older platform would be 0).

If no iterations, the "iterations" is hide.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
 tools/perf/ui/browsers/hists.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 84f5dd2..66676cb 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -738,6 +738,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 					     struct callchain_print_arg *arg)
 {
 	char bf[1024], *alloc_str;
+	char buf[64], *alloc_str2;
 	const char *str;
 
 	if (arg->row_offset != 0) {
@@ -746,12 +747,26 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	}
 
 	alloc_str = NULL;
+	alloc_str2 = NULL;
+
 	str = callchain_list__sym_name(chain, bf, sizeof(bf),
 				       browser->show_dso);
 
-	if (need_percent) {
-		char buf[64];
+	if (symbol_conf.show_branchflag_count) {
+		if (need_percent)
+			callchain_list_counts__printf_value(node, chain, NULL,
+							    buf, sizeof(buf));
+		else
+			callchain_list_counts__printf_value(NULL, chain, NULL,
+							    buf, sizeof(buf));
+
+		if (asprintf(&alloc_str2, "%s%s", str, buf) < 0)
+			str = "Not enough memory!";
+		else
+			str = alloc_str2;
+	}
 
+	if (need_percent) {
 		callchain_node__scnprintf_value(node, buf, sizeof(buf),
 						total);
 
@@ -764,6 +779,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	print(browser, chain, str, offset, row, arg);
 
 	free(alloc_str);
+	free(alloc_str2);
 	return 1;
 }
 
-- 
2.7.4

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Thread

[PATCH v4 0/6] perf report: Show branch flags/cycles in --branch-history callgraph view Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:20 +0100
  [PATCH v4 5/6] perf report: Show branch info in callchain entry for browser mode Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:20 +0100
  [PATCH v4 4/6] perf report: Show branch info in callchain entry for stdio mode Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:30 +0100
  [PATCH v4 1/6] perf report: Add branch flag to callchain cursor node Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:30 +0100
  [PATCH v4 6/6] perf report: Display columns Predicted/Abort/Cycles in --branch-history Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:30 +0100
  [PATCH v4 3/6] perf report: Caculate and return the branch flag counting Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:30 +0100
  [PATCH v4 2/6] perf report: Create a symbol_conf flag for showing branch flag counting Jin Yao <yao.jin@linux.intel.com> - 2016-10-31 02:30 +0100

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