redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

perf diff: Add -p option to display period values for hist entries 

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.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349448287-18919-6-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Jiri Olsa 2012-10-05 16:44:44 +02:00 committed by Arnaldo Carvalho de Melo
parent 81d5f95819
commit 61949b212e
4 changed files with 35 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/Documentation/perf-diff.txt
View File

@ -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

10
tools/perf/builtin-diff.c
View File

@ -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;
@ -540,6 +541,8 @@ 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"),
@ -568,7 +571,7 @@ 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) {
@ -587,6 +590,11 @@ 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)

21
tools/perf/ui/hist.c
View File

@ -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->stat.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->stat.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) },

1
tools/perf/util/hist.h
View File

@ -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,