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Groups > linux.kernel > #1512262
| From | Jin Yao <yao.jin@linux.intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v4 4/6] perf report: Show branch info in callchain entry for stdio mode |
| Date | 2016-10-31 02:30 +0100 |
| Message-ID | <sy9Ae-3Yg-9@gated-at.bofh.it> (permalink) |
| References | <sy9qx-3UZ-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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.
For example:
|--29.93%--main div.c:39 (predicted:50.6%, cycles:1, iterations:18)
| main div.c:44 (predicted:50.6%, cycles:1)
| |
| --22.69%--main div.c:42 (cycles:2, iterations:17)
| compute_flag div.c:28 (cycles:2)
| |
| --10.52%--compute_flag div.c:27 (cycles:1)
| rand rand.c:28 (cycles:1)
| rand rand.c:28 (cycles:1)
| __random random.c:298 (cycles:1)
| __random random.c:297 (cycles:1)
| __random random.c:295 (cycles:1)
| __random random.c:295 (cycles:1)
| __random random.c:295 (cycles:1)
| __random random.c:295 (cycles:6)
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
---
tools/perf/ui/stdio/hist.c | 35 +++++++++++++++++++++++++++++++----
1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 89d8441..668f4ae 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -41,7 +41,9 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
{
int i;
size_t ret = 0;
- char bf[1024];
+ char bf[1024], *alloc_str = NULL;
+ char buf[64];
+ const char *str;
ret += callchain__fprintf_left_margin(fp, left_margin);
for (i = 0; i < depth; i++) {
@@ -56,8 +58,26 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
} else
ret += fprintf(fp, "%s", " ");
}
- fputs(callchain_list__sym_name(chain, bf, sizeof(bf), false), fp);
+
+ str = callchain_list__sym_name(chain, bf, sizeof(bf), false);
+
+ if (symbol_conf.show_branchflag_count) {
+ if (!period)
+ 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_str, "%s%s", str, buf) < 0)
+ str = "Not enough memory!";
+ else
+ str = alloc_str;
+ }
+
+ fputs(str, fp);
fputc('\n', fp);
+ free(alloc_str);
return ret;
}
@@ -219,8 +239,15 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
} else
ret += callchain__fprintf_left_margin(fp, left_margin);
- ret += fprintf(fp, "%s\n", callchain_list__sym_name(chain, bf, sizeof(bf),
- false));
+ ret += fprintf(fp, "%s",
+ callchain_list__sym_name(chain, bf,
+ sizeof(bf),
+ false));
+
+ if (symbol_conf.show_branchflag_count)
+ ret += callchain_list_counts__printf_value(
+ NULL, chain, fp, NULL, 0);
+ ret += fprintf(fp, "\n");
if (++entries_printed == callchain_param.print_limit)
break;
--
2.7.4
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[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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