From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 20 Mar 2007 09:47:45 +0000 (+0100)
Subject: Print clue to reduce queue depth if engine init fails
X-Git-Tag: fio-1.15~66
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=eeb121607c2a7f36b0fac17649cb8081d6fd853b

Print clue to reduce queue depth if engine init fails

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/ioengines.c b/ioengines.c
index 0e5ea62d..4ab08ce7 100644
--- a/ioengines.c
+++ b/ioengines.c
@@ -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)