diff options
| -rw-r--r-- | tools/perf/builtin-record.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 5f3127e7a61..2459e5a22ed 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -524,6 +524,7 @@ static int __cmd_record(int argc, const char **argv) pid_t pid = 0; int flags; int ret; + unsigned long waking = 0; page_size = sysconf(_SC_PAGE_SIZE); nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); @@ -634,10 +635,20 @@ static int __cmd_record(int argc, const char **argv) if (hits == samples) { if (done) break; - ret = poll(event_array, nr_poll, 100); + ret = poll(event_array, nr_poll, -1); + waking++; + } + + if (done) { + for (i = 0; i < nr_cpu; i++) { + for (counter = 0; counter < nr_counters; counter++) + ioctl(fd[i][counter], PERF_COUNTER_IOC_DISABLE); + } } } + fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); + /* * Approximate RIP event size: 24 bytes. */ |