diff options
| -rw-r--r-- | tools/perf/Documentation/perf-stat.txt | 4 | ||||
| -rw-r--r-- | tools/perf/builtin-stat.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/stat.h | 1 |
3 files changed, 10 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index 2b44c08b3b23..5d4a673d7621 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -317,6 +317,10 @@ small group that need not have multiplexing is lowered. This option forbids the event merging logic from sharing events between groups and may be used to increase accuracy in this case. +--quiet:: +Don't print output. This is useful with perf stat record below to only +write data to the perf.data file. + STAT RECORD ----------- Stores stat data into perf data file. diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 6709578128c9..f15b2f8aa14d 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -972,6 +972,8 @@ static void print_counters(struct timespec *ts, int argc, const char **argv) /* Do not print anything if we record to the pipe. */ if (STAT_RECORD && perf_stat.data.is_pipe) return; + if (stat_config.quiet) + return; perf_evlist__print_counters(evsel_list, &stat_config, &target, ts, argc, argv); @@ -1171,6 +1173,8 @@ static struct option stat_options[] = { "threads of same physical core"), OPT_BOOLEAN(0, "summary", &stat_config.summary, "print summary for interval mode"), + OPT_BOOLEAN(0, "quiet", &stat_config.quiet, + "don't print output (useful with record)"), #ifdef HAVE_LIBPFM OPT_CALLBACK(0, "pfm-events", &evsel_list, "event", "libpfm4 event selector. use 'perf list' to list available events", @@ -2132,7 +2136,7 @@ int cmd_stat(int argc, const char **argv) goto out; } - if (!output) { + if (!output && !stat_config.quiet) { struct timespec tm; mode = append_file ? "a" : "w"; diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index 487010c624be..05adf8165025 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -122,6 +122,7 @@ struct perf_stat_config { bool metric_no_group; bool metric_no_merge; bool stop_read_counter; + bool quiet; FILE *output; unsigned int interval; unsigned int timeout; |