Before this change, cyclicdeadline was giving abnormally high latencies,
uncharacteristic of an RT system. After removing the extra calls, the
latencies were more in line with what we expected.
Signed-off-by: Anubhav Shelat <ashelat@xxxxxxxxxx>
---
src/sched_deadline/cyclicdeadline.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/src/sched_deadline/cyclicdeadline.c b/src/sched_deadline/cyclicdeadline.c
index 48b82e7efb01..39aeeb5d0785 100644
--- a/src/sched_deadline/cyclicdeadline.c
+++ b/src/sched_deadline/cyclicdeadline.c
@@ -807,8 +807,6 @@ void *run_deadline(void *data)
return NULL;
}
- pthread_barrier_wait(&barrier);
-
attr.sched_policy = SCHED_DEADLINE;
attr.sched_runtime = sd->runtime_us * 1000;
attr.sched_deadline = sd->deadline_us * 1000;
@@ -816,8 +814,6 @@ void *run_deadline(void *data)
printf("thread[%d] runtime=%lldus deadline=%lldus\n",
gettid(), sd->runtime_us, sd->deadline_us);
- pthread_barrier_wait(&barrier);
-
ret = sched_setattr(0, &attr, 0);
if (ret < 0) {
err_msg_n(errno, "[%ld]", tid);
@@ -1281,8 +1277,6 @@ int main(int argc, char **argv)
atexit(teardown);
- pthread_barrier_wait(&barrier);
-
if (shutdown)
fatal("failed to setup child threads at step 1\n");
@@ -1312,8 +1306,6 @@ int main(int argc, char **argv)
printf("main thread %d\n", gettid());
- pthread_barrier_wait(&barrier);
-
if (shutdown)
fatal("failed to setup child threads at step 2");
--
2.39.3
