Print clue to reduce queue depth if engine init fails

[fio.git] / ioengines.c

diff --git a/ioengines.c b/ioengines.c
index b18bc9a2010efe7cd22cf5993e1e11d492976c35..4ab08ce7472ca806573cf4fcb9875c96645c9b5f 100644 (file)
--- a/ioengines.c
+++ b/ioengines.c
@@ -215,7 +215,7 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
                int r;
 
                td->io_u_queued++;
-               if (td->io_u_queued > td->iodepth_batch) {
+               if (td->io_u_queued > td->o.iodepth_batch) {
                        r = td_io_commit(td);
                        if (r < 0)
                                return r;
@@ -238,10 +238,15 @@ int td_io_queue(struct thread_data *td, struct io_u *io_u)
 
 int td_io_init(struct thread_data *td)
 {
-       if (td->io_ops->init)
-               return td->io_ops->init(td);
+       int ret = 0;
 
-       return 0;
+       if (td->io_ops->init) {
+               ret = td->io_ops->init(td);
+               if (ret && td->o.iodepth > 1)
+                       log_err("fio: io engine init failed. Perhaps try reducing io dpeth?\n");
+       }
+
+       return ret;
 }
 
 int td_io_commit(struct thread_data *td)