Recent changes (master)

Jens Axboe
2020-12-16T13:00:46Z

The following changes since commit 731365d849407426fe32981c97a2f9b42cdc0149:

flow: fix hang with flow control and zoned block devices (2020-12-07 16:56:37 -0700)

are available in the Git repository at:

git://git.kernel.dk/fio.git master

for you to fetch changes up to dee9b29bef5bc344815d7a53dda6bb21426f2bfa:

Merge branch 'wip-rbd-engine-tweaks' of https://github.com/dillaman/fio (2020-12-15 09:18:28 -0700)

----------------------------------------------------------------
Jason Dillaman (2):
engines/rbd: add support for "direct=1" option
engines/rbd: issue initial flush to enable writeback/around mode

Jens Axboe (1):
Merge branch 'wip-rbd-engine-tweaks' of https://github.com/dillaman/fio

engines/rbd.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

---

Diff of recent changes:

diff --git a/engines/rbd.c b/engines/rbd.c
index 268b6ebd..c6203d4c 100644
--- a/engines/rbd.c
+++ b/engines/rbd.c
@@ -227,12 +227,30 @@ static int _fio_rbd_connect(struct thread_data *td)
goto failed_shutdown;
}

+ if (td->o.odirect) {
+ r = rados_conf_set(rbd->cluster, "rbd_cache", "false");
+ if (r < 0) {
+ log_info("failed to disable RBD in-memory cache\n");
+ }
+ }
+
r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ );
if (r < 0) {
log_err("rbd_open failed.\n");
goto failed_open;
}

+ if (!td->o.odirect) {
+ /*
+ * ensure cache enables writeback/around mode unless explicitly
+ * configured for writethrough mode
+ */
+ r = rbd_flush(rbd->image);
+ if (r < 0) {
+ log_info("rbd: failed to issue initial flush\n");
+ }
+ }
+
if (!_fio_rbd_setup_poll(rbd))
goto failed_poll;