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authorJin Yao <yao.jin@linux.intel.com>2017-05-04 16:58:15 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-06-19 20:14:57 +0200
commitec27ae1892f7f8119ce82535ffcc2889ea3bb3d8 (patch)
treef56ff28a18fe56cc5edcbb1616a9a6083c624d7c /tools
parentperf report: Remove unnecessary check in annotate_browser_write() (diff)
downloadlinux-ec27ae1892f7f8119ce82535ffcc2889ea3bb3d8.tar.xz
linux-ec27ae1892f7f8119ce82535ffcc2889ea3bb3d8.zip
perf annotate browser: Display titles in left frame
The annotate browser is divided into 2 frames. Left frame contains 3 columns (some platforms only have one column). For example: │26 int compute_flag() │27 { 22.80 1.20 │ sub $0x8,%rsp │25 int i; │ │27 i = rand() % 2; 22.78 1.20 1 │ → callq rand@plt While it's hard for user to understand what the data is. This patch adds the titles "Percent", "IPC" and "Cycle" on columns. Percent IPC Cycle │ │25 __attribute__((noinline)) │26 int compute_flag() │27 { 22.80 1.20 │ sub $0x8,%rsp │25 int i; │ │27 i = rand() % 2; 22.78 1.20 1 │ → callq rand@plt The titles are displayed at row 0 of annotate browser if row 0 doesn't have values of percent, ipc and cycle. Signed-off-by: Yao Jin <yao.jin@linux.intel.com> Acked-by: Milian Wolff <milian.wolff@kdab.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Yao Jin <yao.jin@linux.intel.com> Link: http://lkml.kernel.org/r/1493909895-9668-3-git-send-email-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/ui/browsers/annotate.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 52c1e8d672b5..7a03389b7a03 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -125,12 +125,21 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
int i, pcnt_width = annotate_browser__pcnt_width(ab);
double percent_max = 0.0;
char bf[256];
+ bool show_title = false;
for (i = 0; i < ab->nr_events; i++) {
if (bdl->samples[i].percent > percent_max)
percent_max = bdl->samples[i].percent;
}
+ if ((row == 0) && (dl->offset == -1 || percent_max == 0.0)) {
+ if (ab->have_cycles) {
+ if (dl->ipc == 0.0 && dl->cycles == 0)
+ show_title = true;
+ } else
+ show_title = true;
+ }
+
if (dl->offset != -1 && percent_max != 0.0) {
for (i = 0; i < ab->nr_events; i++) {
ui_browser__set_percent_color(browser,
@@ -146,18 +155,27 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
}
} else {
ui_browser__set_percent_color(browser, 0, current_entry);
- ui_browser__write_nstring(browser, " ", 7 * ab->nr_events);
+
+ if (!show_title)
+ ui_browser__write_nstring(browser, " ", 7 * ab->nr_events);
+ else
+ ui_browser__printf(browser, "%*s", 7, "Percent");
}
if (ab->have_cycles) {
if (dl->ipc)
ui_browser__printf(browser, "%*.2f ", IPC_WIDTH - 1, dl->ipc);
- else
+ else if (!show_title)
ui_browser__write_nstring(browser, " ", IPC_WIDTH);
+ else
+ ui_browser__printf(browser, "%*s ", IPC_WIDTH - 1, "IPC");
+
if (dl->cycles)
ui_browser__printf(browser, "%*" PRIu64 " ",
CYCLES_WIDTH - 1, dl->cycles);
- else
+ else if (!show_title)
ui_browser__write_nstring(browser, " ", CYCLES_WIDTH);
+ else
+ ui_browser__printf(browser, "%*s ", CYCLES_WIDTH - 1, "Cycle");
}
SLsmg_write_char(' ');