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-rw-r--r--tools/perf/Documentation/perf-trace.txt10
-rw-r--r--tools/perf/builtin-trace.c16
2 files changed, 21 insertions, 5 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 7b0497f95a75..fae38d9a44a4 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -93,9 +93,15 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
--comm::
Show process COMM right beside its ID, on by default, disable with --no-comm.
+-s::
--summary::
- Show a summary of syscalls by thread with min, max, and average times (in
- msec) and relative stddev.
+ Show only a summary of syscalls by thread with min, max, and average times
+ (in msec) and relative stddev.
+
+-S::
+--with-summary::
+ Show all syscalls followed by a summary by thread with min, max, and
+ average times (in msec) and relative stddev.
--tool_stats::
Show tool stats such as number of times fd->pathname was discovered thru
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0964c0cdc982..aa5702ffa2cb 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1168,6 +1168,7 @@ struct trace {
bool sched;
bool multiple_threads;
bool summary;
+ bool summary_only;
bool show_comm;
bool show_tool_stats;
double duration_filter;
@@ -1611,7 +1612,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
args, trace, thread);
if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) {
- if (!trace->duration_filter) {
+ if (!trace->duration_filter && !trace->summary_only) {
trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
fprintf(trace->output, "%-70s\n", ttrace->entry_str);
}
@@ -1664,6 +1665,9 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
} else if (trace->duration_filter)
goto out;
+ if (trace->summary_only)
+ goto out;
+
trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
if (ttrace->entry_pending) {
@@ -2282,8 +2286,10 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_BOOLEAN('T', "time", &trace.full_time,
"Show full timestamp, not time relative to first start"),
- OPT_BOOLEAN(0, "summary", &trace.summary,
- "Show syscall summary with statistics"),
+ OPT_BOOLEAN('s', "summary", &trace.summary_only,
+ "Show only syscall summary with statistics"),
+ OPT_BOOLEAN('S', "with-summary", &trace.summary,
+ "Show all syscalls and summary with statistics"),
OPT_END()
};
int err;
@@ -2294,6 +2300,10 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, trace_options, trace_usage, 0);
+ /* summary_only implies summary option, but don't overwrite summary if set */
+ if (trace.summary_only)
+ trace.summary = trace.summary_only;
+
if (output_name != NULL) {
err = trace__open_output(&trace, output_name);
if (err < 0) {