perf report: Add option to show total period

Just like --show-nr-samples, to help in diagnosing problems in the
tools.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1lr7ejdjfvy2uwy2wkmatcpq@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ef9dfe6e
......@@ -137,6 +137,8 @@ OPTIONS
-M::
--disassembler-style=:: Set disassembler style for objdump.
--show-total-period:: Show a column with the sum of periods.
SEE ALSO
--------
linkperf:perf-stat[1]
......@@ -486,6 +486,8 @@ static const struct option options[] = {
OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
"Show a column with the sum of periods"),
OPT_END()
};
......
......@@ -664,6 +664,13 @@ int hist_entry__snprintf(struct hist_entry *self, char *s, size_t size,
ret += snprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
}
if (symbol_conf.show_total_period) {
if (sep)
ret += snprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
else
ret += snprintf(s + ret, size - ret, " %12" PRIu64, period);
}
if (pair_hists) {
char bf[32];
double old_percent = 0, new_percent = 0, diff;
......@@ -770,6 +777,13 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
fputs(" Samples ", fp);
}
if (symbol_conf.show_total_period) {
if (sep)
ret += fprintf(fp, "%cPeriod", *sep);
else
ret += fprintf(fp, " Period ");
}
if (symbol_conf.show_cpu_utilization) {
if (sep) {
ret += fprintf(fp, "%csys", *sep);
......@@ -834,6 +848,8 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
fprintf(fp, "# ........");
if (symbol_conf.show_nr_samples)
fprintf(fp, " ..........");
if (symbol_conf.show_total_period)
fprintf(fp, " ............");
if (pair) {
fprintf(fp, " ..........");
if (show_displacement)
......@@ -917,6 +933,9 @@ unsigned int hists__sort_list_width(struct hists *hists)
if (symbol_conf.show_nr_samples)
ret += 11;
if (symbol_conf.show_total_period)
ret += 13;
list_for_each_entry(se, &hist_entry__sort_list, list)
if (!se->elide)
ret += 2 + hists__col_len(hists, se->se_width_idx);
......
......@@ -72,6 +72,7 @@ struct symbol_conf {
use_modules,
sort_by_name,
show_nr_samples,
show_total_period,
use_callchain,
exclude_other,
show_cpu_utilization,
......
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