the engine sets any other properties, so those can be overriden. Available
properties depend on the libblkio version in use and are listed at
\fIhttps://libblkio.gitlab.io/libblkio/blkio.html#properties\fR
+.TP
+.BI (libblkio)hipri
+Use poll queues.
.SS "I/O depth"
.TP
.BI iodepth \fR=\fPint