Adding -p option to show period values for both compared hist
entries. Showing hist column PERF_HPP__PERIOD and newly added
hist column PERF_HPP__PERIOD_BASELINE.
Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Ingo Molnar <mi...@elte.hu>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Signed-off-by: Jiri Olsa <jo...@redhat.com>
---
tools/perf/Documentation/perf-diff.txt | 4 ++++
tools/perf/builtin-diff.c | 10 +++++++++-
tools/perf/ui/hist.c | 21 +++++++++++++++++++++
tools/perf/util/hist.h | 1 +
4 files changed, 35 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-diff.txt
b/tools/perf/Documentation/perf-diff.txt
index fa413ac..21cc2ef 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -83,6 +83,10 @@ OPTIONS
on the computation results.
See COMPARISON METHODS section for more info.
+-p::
+--period::
+ Show period values for both compared hist entries.
+
COMPARISON METHODS
------------------
delta
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index b0a08aa..799f395 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -24,6 +24,7 @@ static char const *input_old = "perf.data.old",
static char diff__default_sort_order[] = "dso,symbol";
static bool force;
static bool show_displacement;
+static bool show_period;
static bool show_baseline_only;
static bool sort_compute;
@@ -539,6 +540,8 @@ static const struct option options[] = {
"delta,ratio,wdiff:w1,w2 (default delta)",
"Entries differential computation selection",
setup_compute),
+ OPT_BOOLEAN('p', "period", &show_period,
+ "Show period values."),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
@@ -567,7 +570,7 @@ static void ui_init(void)
/* No overhead column. */
perf_hpp__column_enable(PERF_HPP__OVERHEAD, false);
- /* Display baseline/delta/ratio/displacement columns. */
+ /* Display baseline/delta/ratio/displacement/periods columns. */
perf_hpp__column_enable(PERF_HPP__BASELINE, true);
switch (compute) {
@@ -586,6 +589,11 @@ static void ui_init(void)
if (show_displacement)
perf_hpp__column_enable(PERF_HPP__DISPL, true);
+
+ if (show_period) {
+ perf_hpp__column_enable(PERF_HPP__PERIOD, true);
+ perf_hpp__column_enable(PERF_HPP__PERIOD_BASELINE, true);
+ }
}
int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 5980ca5..f97c16e 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -228,6 +228,26 @@ static int hpp__entry_period(struct perf_hpp *hpp, struct
hist_entry *he)
return scnprintf(hpp->buf, hpp->size, fmt, he->period);
}
+static int hpp__header_period_baseline(struct perf_hpp *hpp)
+{
+ const char *fmt = symbol_conf.field_sep ? "%s" : "%12s";
+
+ return scnprintf(hpp->buf, hpp->size, fmt, "Period Base");
+}
+
+static int hpp__width_period_baseline(struct perf_hpp *hpp __maybe_unused)
+{
+ return 12;
+}
+
+static int hpp__entry_period_baseline(struct perf_hpp *hpp, struct hist_entry
*he)
+{
+ struct hist_entry *pair = he->pair;
+ u64 period = pair ? pair->period : 0;
+ const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
+
+ return scnprintf(hpp->buf, hpp->size, fmt, period);
+}
static int hpp__header_delta(struct perf_hpp *hpp)
{
const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
@@ -359,6 +379,7 @@ struct perf_hpp_fmt perf_hpp__format[] = {
{ .cond = false, HPP__COLOR_PRINT_FNS(overhead_guest_us) },
{ .cond = false, HPP__PRINT_FNS(samples) },
{ .cond = false, HPP__PRINT_FNS(period) },
+ { .cond = false, HPP__PRINT_FNS(period_baseline) },
{ .cond = false, HPP__PRINT_FNS(delta) },
{ .cond = false, HPP__PRINT_FNS(ratio) },
{ .cond = false, HPP__PRINT_FNS(wdiff) },
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 27866b5..ff307bf 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -140,6 +140,7 @@ enum {
PERF_HPP__OVERHEAD_GUEST_US,
PERF_HPP__SAMPLES,
PERF_HPP__PERIOD,
+ PERF_HPP__PERIOD_BASELINE,
PERF_HPP__DELTA,
PERF_HPP__RATIO,
PERF_HPP__WEIGHTED_DIFF,
--
1.7.11.4
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