Add iodepth_batch setting
This allows controlling how much IO we submit in one go
independent of the iodepth set.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 237b3ad..de4b0a9 100644
--- a/HOWTO
+++ b/HOWTO
@@ -294,6 +294,10 @@
job, can be overridden with a larger value for higher
concurrency.
+iodepth_batch=int This defines how many pieces of IO to submit at once.
+ It defaults to the same as iodepth, but can be set lower
+ if one so desires.
+
iodepth_low=int The low water mark indicating when to start filling
the queue again. Defaults to the same as iodepth, meaning
that fio will attempt to keep the queue full at all times.