diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 7069bd3e90b..b2f729fdb31 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -49,6 +49,7 @@ static int pipe_output = 0; static const char *output_name = "perf.data"; static int group = 0; static int realtime_prio = 0; +static bool nodelay = false; static bool raw_samples = false; static bool sample_id_all_avail = true; static bool system_wide = false; @@ -307,6 +308,11 @@ static void create_counter(struct perf_evsel *evsel, int cpu) attr->sample_type |= PERF_SAMPLE_CPU; } + if (nodelay) { + attr->watermark = 0; + attr->wakeup_events = 1; + } + attr->mmap = track; attr->comm = track; attr->inherit = !no_inherit; @@ -331,9 +337,6 @@ try_again: else if (err == ENODEV && cpu_list) { die("No such device - did you specify" " an out-of-range profile CPU?\n"); - } else if (err == ENOENT) { - die("%s event is not supported. ", - event_name(evsel)); } else if (err == EINVAL && sample_id_all_avail) { /* * Old kernel, no attr->sample_id_type_all field @@ -480,6 +483,7 @@ static void atexit_header(void) process_buildids(); perf_header__write(&session->header, output, true); perf_session__delete(session); + perf_evsel_list__delete(); symbol__exit(); } } @@ -813,7 +817,7 @@ static int __cmd_record(int argc, const char **argv) * Approximate RIP event size: 24 bytes. */ fprintf(stderr, - "[ perf record: Captured and wrote %.3f MB %s (~%lld samples) ]\n", + "[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n", (double)bytes_written / 1024.0 / 1024.0, output_name, bytes_written / 24); @@ -845,6 +849,8 @@ const struct option record_options[] = { "record events on existing thread id"), OPT_INTEGER('r', "realtime", &realtime_prio, "collect data with this RT SCHED_FIFO priority"), + OPT_BOOLEAN('D', "no-delay", &nodelay, + "collect data without buffering"), OPT_BOOLEAN('R', "raw-samples", &raw_samples, "collect raw sample records from all opened counters"), OPT_BOOLEAN('a', "all-cpus", &system_wide, @@ -930,6 +936,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) list_for_each_entry(pos, &evsel_list, node) { if (perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0) goto out_free_fd; + if (perf_header__push_event(pos->attr.config, event_name(pos))) + goto out_free_fd; } event_array = malloc((sizeof(struct pollfd) * MAX_NR_CPUS * MAX_COUNTERS * threads->nr)); |