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-rw-r--r--tools/perf/builtin-report.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 770bf8a614f2..8e67a8c25ab1 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -62,6 +62,7 @@ struct report {
bool show_threads;
bool inverted_callchain;
bool mem_mode;
+ bool stats_mode;
bool header;
bool header_only;
bool nonany_branch_mode;
@@ -588,6 +589,20 @@ static void report__output_resort(struct report *rep)
ui_progress__finish();
}
+static void stats_setup(struct report *rep)
+{
+ memset(&rep->tool, 0, sizeof(rep->tool));
+ rep->tool.no_warn = true;
+}
+
+static int stats_print(struct report *rep)
+{
+ struct perf_session *session = rep->session;
+
+ perf_session__fprintf_nr_events(session, stdout);
+ return 0;
+}
+
static int __cmd_report(struct report *rep)
{
int ret;
@@ -619,12 +634,18 @@ static int __cmd_report(struct report *rep)
return ret;
}
+ if (rep->stats_mode)
+ stats_setup(rep);
+
ret = perf_session__process_events(session);
if (ret) {
ui__error("failed to process sample\n");
return ret;
}
+ if (rep->stats_mode)
+ return stats_print(rep);
+
report__warn_kptr_restrict(rep);
evlist__for_each_entry(session->evlist, pos)
@@ -781,6 +802,7 @@ int cmd_report(int argc, const char **argv)
OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
+ OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
@@ -1042,6 +1064,8 @@ repeat:
report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
if (report.show_full_info)
report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
+ if (report.stats_mode)
+ use_browser = 0;
if (strcmp(input_name, "-") != 0)
setup_browser(true);
@@ -1064,7 +1088,7 @@ repeat:
ret = 0;
goto error;
}
- } else if (use_browser == 0 && !quiet) {
+ } else if (use_browser == 0 && !quiet && !report.stats_mode) {
fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
stdout);
}